asrivastava.app's picture
Dr. Abhishek Kumar Srivastava
Associate Professor
Department of Physics,IIT (BHU)
asrivastava.app@iitbhu.ac.in
9598505336
Area of Interest: 
Coronal Heating and Mass Transport Processes; Forced Reconnection; Solar Transients, Jets, and Magnetohydrodynamic (MHD) Waves; Eruptive Phenomena; Coronal and Stellar Seismology; Flare-generated Oscillations of the Sun-like Stars.

I am working as an Associate Professor in the Department of Physics, Indian Institute of Technology (BHU), India. Before joining IIT (BHU) on 1st January 2014, I worked as a Scientist at Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital during 1st January 2008 to 31st December 2013. I also worked as a Post-Doctoral Research Assistant of Prof. John G. Doyle at Armagh Observatory, United Kingdom in 2007. I have done my Ph.D. in 2006 from Department of Applied Physics, ITBHU on the topic "MHD Waves in Coronal Holes and Line Diagnostics of Coronal Loops" under the supervision of Prof. B.N. Dwivedi. In my scientific career, I am pursuing research mainly related to the multi-wavelength observations and modeling of transient events (e.g., spicules, various jets, reconnection events), eruptive phenomena (e.g., solar flares and associated plasma processes), and MHD waves & Seismology in the Sun's atmosphere using recent space- and ground-based instruments/observatories (e.g., from different instruments onboard Hinode, STEREO, SDO, IRIS, SST etc) as well as theoretical modeling. I also pursue the study of large-scale active region dynamics to understand the role of instabilities and flux-rope evolution in flare and CME eruptions, which is key to space weather predictions. Moreover, I am also involved in the research of stellar flares and MHD seismology of stellar coronae of Sun-like stars. Recently, I aim to study the observations of various kinds of MHD waves in a variety of small/large-scale magnetic structures (e.g., BPs, networks, coronal loops, prominence, small-scale flowing structures etc) to diagnose their local plasma conditions and to study the MHD mode coupling in the solar atmosphere. I am also studying the solar jets and spicules, as well as modeling of these spectacular ejecta to understand their triggering mechanisms and their role in mass and energy transport in the solar atmosphere. The recent trends of the observations of MHD waves and their role in accelerating/heating the transient phenomena, as well as diagnosing the solar atmosphere, are now being the frontiers in solar physics, and serve also as theme of my research. Since last several years we have devoted on understanding the physical processes that can heat the Sun's corona  and chromosphere (e.g., waves, instabilities, the forced magnetic reconnection, shocks/pseudo-shocks). Our cutting edge scientific findings on these lines are highlighted below on this page. Apart from frontline research in the field of solar physics, I am involved extensively in the teaching and training of B.Tech Part One, IDD Engineering Physics, M.Sc., Ph.D. students, and also engaged in various administrative tasks assigned by the institute. I am also involved in the science team of Aditya-L1 instruments, and in various global research networks and collaborations to pursue the research on the leading problems in the field of Solar Physics.

Personal and Professional Data:

1. Name in Full: Dr. Abhishek Kumar SRIVASTAVA
2. Date of Birth: 28/03/1980 
3. Nationality: Indian

4. Present Position : Associate Professor, Department of Physics, IIT (BHU), Varanasi.
5. Areas of Specialization: Physics
6. Current Areas of Research: Solar Physics (Astrophysics)
7. Academic Record : Xth (1994); XIIth (1996); B.Sc. (1999); M.Sc. (2001) → All first class. Ph.D. Degree (2006).
                                     National Level Exams Qualified after PG:- NET, GATE, SLET, JEST.

8. Academic Experiences:
      (i) Post-doctoral Research Assistant, Armagh Observatory, United Kingdom, 2007.
      (ii) Scientist at Aryabhatta Research Institute of Observational Sciences (ARIES), Nainital from 1st January 2008 to 31st December 2013.

      (iii) Assistant Professor of Physics at IIT (BHU) since 1st January 2014 – 20th December 2017 (forenoon).
      (iv) Associate Professor of Physics at IIT (BHU) since 20th December 2017 (afternoon)- till date.
  
9. Thesis Supervision : Ph.D.: 04 (completed); 05 (ongoing); M. Tech./M.Sc. Thesis: 03 (completed): 04 ongoing.
10. Science Team Member in National Projects: Aditya-L1/SUIT

 Development of Research Facilities :
        ASCAL : Advanced Solar Computation and Data Analyses Laboratory.

 

[1]  Highlights From SDO's 10 Years Journey : It includes "The Forced Reconnection Process" detected by Srivastava, A.K. et al. in 2019.
Ten Things We’ve Learned About the Sun From NASA’s SDO This Decade: https://www.nasa.gov/feature/goddard/2020/ten-things-we-ve-learned-about-the-sun-from-nasa-s-sdo-this-decade
Featured Article: https://www.nasa.gov/feature/goddard/2019/nasa-s-sdo-sees-new-kind-of-magnetic-explosion-on-sun

[2]  Jets with Pseudo-shocks Transport Susbstantial Amount of Energy and Mass to the Sun's Corona (Link of NATURE ASTRONOMY ARTICLE)
      Featured Article: https://www.nasa.gov/feature/goddard/2019/solar-tadpole-like-jets-seen-with-nasa-s-iris-add-new-clue-to-age-old-mystery

 

The NASA-ADS library of my refereed scientific papers
Google Scholar  (Citations: 2560, H-Index: 30 i-10 index: 73)
SCOPUS Profile
ORCID Profile

IRNIS Profile
Research Gate Profile

 Publications:

[1] Srivastava, A. K., Dwivedi, B. N., Magnetosonic Waveguide Model of SolarWind Flow Tubes, Journal of Astrophysics & Astronomy, 2006, 27, 353.
[2] Dwivedi, B. N., Srivastava, A. K., On the Propagation and Dissipation of Alfvén Waves in Coronal Holes, Solar Physics, 2006, 237, 143.
[3] Srivastava, A.K., Dwivedi, B.N., Oblique Propagation and Dissipation of Alfvén Waves in Coronal Holes, Journal of Astrophysics & Astronomy, 2007, 28, 1.
[4] O'Shea, E., Srivastava, A. K., Doyle, J. G., Banerjee, D., Evidence for Wave Harmonics in Cool Loops, Astronomy & Astrophysics, 2007, 473, L13.
[5] Srivastava, A. K., Singh, Jagdev, Dwivedi, B. N., Muneer, S., Sakurai, T., Ichimoto, K., Fe XIV green/Fe XIII Infrared Line Ratio Diagnostics, BASI, 2007, 35, 457.
[6] Srivastava, A. K., Kuridze, D., Zaqarashvili, T. V., Dwivedi, B. N., Intensity Oscillations Observed with Hinode Near the South Pole of the Sun: Leakage of Low Frequency Magneto-acoustic Waves into the Solar Corona, Astronomy & Astrophysics, 2008, 481, L95.
[7] Srivastava, A. K., Zaqarashvili, T. V., Uddin, W., Dwivedi, B. N., Kumar, Pankaj, Observation of Multiple Sausage Oscillations in Cool Post-flare Loop, Monthly Notices of the Royal Astronomical Society, 2008, 388, 1899.
[8] Dwivedi, B. N.,  Srivastava, A. K., Long Period Slow MHD Waves in the Solar Wind Source Region, New Astronomy, 2008, 13, 581.
[9] Gupta, Alok C., Srivastava, A. K., Wiita, Paul J., Periodic Oscillations in the Intra-Day Optical Light Curves of the Blazar S5 0716+714, The Astrophysical Journal, 2009, 690, 216.
[10] Pandey, J. C., Srivastava, A. K., Observations of X-Ray Oscillations in ξ Boo: Evidence of a Fast-Kink Mode in the Stellar Loops, The Astrophysical Journal Letters, 2009, 697, L153.
[11] Dwivedi, B.N., Srivastava, A.K., Comments on ``Comment on Propagation and Dissipation of Alfven Waves in Coronal Holes'' by Suresh Chandra, OAJ, 2009, 2, 72.
[12] Srivastava, A. K., Dwivedi, B. N., 
Signature of Slow Acoustic Oscillations in a Non-flaring Loop Observed by EIS/Hinode, New Astronomy, 2010, 15, 8.
[13] Dwivedi, B.N., Srivastava, A.K., Coronal Heating by Alfvén Waves, Current Science, 98, 295.
[14] Srivastava, A. K., Zaqarashvili, T. V.,  Kumar, Pankaj, Khodachenko, M. L., Observation of Kink Instability During Small B5.0 Solar Flare on 2007 June 4, The Astrophysical Journal, 2010, 715, 292.
[15] Srivastava, A. K., Dwivedi, B. N., Observations from Hinode/EIS of Intensity Oscillations above a Bright Point: Signature of the Leakage of Acoustic Oscillations in the Inner Corona, Monthly Notices of the Royal Astronomical Society, 2010, 405, 2317.
[16] Kumar, Pankaj,  Srivastava, A. K., Filippov, B., Uddin, Wahab, Multiwavelength Study of the M8.9/3B Solar Flare from AR NOAA 10960, Solar Physics, 2010, 266, 39.
[17] Filippov, Boris, Srivastava, A. K., Deflection of Coronal Rays by Remote CMEs: Shock Wave or Magnetic Pressure?, Solar Physics, 2010, 266, 123.
[18] Srivastava, A. K., Evidence of wave harmonics in a brightened magnetic network observed from Hinode/EIS, New Astronomy, 2010, 15, 621.
[19] Kumar, Pankaj, Srivastava, A. K., Somov, B. V., Manoharan, P. K., Erdélyi, R., Uddin, Wahab, Evidence of Solar Flare Triggering Due to Loop-loop Interaction Caused by Footpoint Shear Motion, The Astrophysical Journal, 2010, 723, 2.
[20] Filippov, Boris, Srivastava, A. K., Crossing Filaments, Solar Physics, 2011, 270, 151.
[21] Kumar, Mukul, Srivastava, A. K., Dwivedi, B. N., Observation of Intensity Oscillations above X-ray Bright Points from the Hinode/XRT: Signature of Magnetohydrodynamic Oscillations in the Solar Corona, Monthly Notices of the Royal Astronomical Society, 2011, 415, 1419.
[22] Kumar, Pankaj, Srivastava, Abhishek K., Filippov, B.,  Erdélyi, R., Uddin, Wahab, Multiwavelength Observations of a Failed Flux Rope in the Eruption and Associated M-Class Flare from NOAA AR 11045, Solar Physics, 2011,  272, 301.
[23] Srivastava, A. K.,  Murawski, K., Observations of a Pulse-driven Cool Polar Jet by SDO/AIA, Astronomy & Astrophysics, 2011, 534, id.A62, 7 pp.
[24] Murawski, K., Srivastava, A. K., Zaqarashvili, T. V., Numerical Simulations of Solar Macrospicules, Astronomy & Astrophysics, 2011, 535, id.A58, 9 pp.
[25] Srivastava, Abhishek K., Murawski, K., Observations of Post-flare Plasma Dynamics during an M1.0 Flare in AR11093 by the Solar Dynamics Observatory/Atmospheric Imaging Assembly, The Astrophysical Journal, 2012, 744, Issue 2, article id. 173, 8 pp.
[26] Botha, G. J. J., Arber, T. D., Srivastava, Abhishek K., Observational Signatures of the Coronal Kink Instability with Thermal Conduction, The Astrophysical Journal, 2012, 745, Issue 1, article id. 53, 8 pp.
[27] Morton, R. J., Srivastava, A. K., Erdélyi, R., Observations of Quasi-periodic Phenomena Associated with a Large Blowout Solar Jet, Astronomy & Astrophysics, 2012, 542, id.A70, 9 pp.
[28] Uddin, Wahab, Schmieder, B., Chandra, R., Srivastava, Abhishek K., Kumar, Pankaj, Bisht, S., Observations of Multiple Surges Associated with Magnetic Activities in AR 10484 on 2003 October 25, The Astrophysical Journal, 2012, 752, article id. 70, 10 pp.
[29] Dwivedi, B. N., Srivastava, Abhishek K.,  Kumar, Mukul, Kumar, Pankaj, A Multiwavelength Study of an M-class Flare and the Origin of An Associated Eruption from NOAA AR 11045, New Astronomy, 2012, 17, 542.
[30] Srivastava, A. K., Erdélyi, R., Murawski, K., Kumar, Pankaj, Multiwavelength Observations of Supersonic Plasma Blob Triggered by Reconnection-Generated Velocity Pulse in AR10808, Solar Physics, 2012, 281, 729.
[31] Kayshap, P., Srivastava, Abhishek K., Murawski, K., The Kinematics and Plasma Properties of a Solar Surge Triggered by Chromospheric Activity in AR11271, The Astrophysical Journal, 2013, 763, Issue 1, article id. 24, 12 pp.
[32] Chmielewski, P., Srivastava, A. K., Murawski, K., Musielak, Z. E., Pulse-driven Non-linear Alfvén Waves and Their Role in the Spectral Line Broadening, Monthly Notices of the Royal Astronomical Society, 2013, 428, 40.
[33] Srivastava, A. K., Erdélyi, R., Tripathi, Durgesh, Fedun, V., Joshi, N. C., Kayshap, P., Observational Evidence of Sausage-pinch Instability in Solar Corona by SDO/AIA, The Astrophysical Journal Letters, 2013, 765, Issue 2, article id. L42, 7 pp.
[34] Murawski, K., Srivastava, A. K., McLaughlin, J. A., Oliver, R., Numerical Simulations of Magnetoacoustic-Gravity Waves in the Solar AtmosphereSolar Physics, 2013, 283, 383.
[35] Srivastava, A. K., Dwivedi, B. N.,  Kumar, Mukul, Observations of Intensity Oscillations in a Prominence-like Cool Loop System as Observed by SDO/AIA: Evidence of Multiple Harmonics of Fast Magnetoacoustic Waves, Astrophysics & Space Science, 2013, 345, 25.
[36] Gopalswamy, N.; Xie, H.; Mäkelä, P.; Yashiro, S.; Akiyama, S.; Uddin, W.; Srivastava, A. K.; Joshi, N. C.; Chandra, R.; Manoharan, P. K. et al., Height of Shock Formation in the Solar Corona Inferred from Observations of Type II Radio Bursts and Coronal Mass Ejections, Advances in Space Research, 2013, 51, 1981.
[37] Kayshap, P., Srivastava, Abhishek K., Murawski, K., Tripathi, Durgesh, Origin of Macrospicule and Jet in Polar Corona by a Small-scale Kinked Flux Tube, The Astrophysical Journal Letters, 2013, 770, Issue 1, article id. L3, 8 pp.
[38]  Joshi, N. C.,  Uddin, W.,  Srivastava, A. K., Chandra, R., Gopalswamy, N.,  Manoharan, P. K., Aschwanden, M. J., Choudhary, D. P., Jain, R., Nitta, N. V. et al., A Multiwavelength Study of Eruptive Events on January 23, 2012 Associated with A Major Solar Energetic Particle Event, Advances in Space Research 2013, 52, 1.
[39] Srivastava, A. K.,  Botha, G. J. J.,  Arber, T. D.,  Kayshap, P., Simulation of the observed coronal kink instability and its implications for the SDO/AIA, Advances in Space Research 2013, 52, 15.
[40] Joshi, Navin Chandra,  Srivastava, Abhishek K.,  Filippov, Boris,  Uddin, Wahab,  Kayshap, Pradeep,  Chandra, Ramesh, A Study of a Failed Coronal Mass Ejection Core Associated with an Asymmetric Filament Eruption, The Astrophysical Journal, 2013, 771, Issue 1, article id. 65, 13 pp.
[41] Choudhary, Debi Prasad, Gosain, Sanjay, Gopalswamy, Nat,  Manoharan, P. K., Chandra, R., Uddin, W., Srivastava, A. K., Yashiro, S., Joshi, N. C., Kayshap, P., Flux Emergence, Flux Imbalance, Magnetic Free Energy and Solar Flares, Advances in Space Reserach, 2013, 52, 1561.
[42] Srivastava, A. K., Goossens, M., X6.9-class Flare-induced Vertical Kink Oscillations in a Large-scale Plasma Curtain as Observed by the Solar Dynamics Observatory/Atmospheric Imaging Assembly, The Astrophysical Journal, 2013, v777, Issue 1, article id. 17, 9 pp.
[43] Chandra, R., Gopalswamy, N.,  Mäkelä, P.,  Xie, H.,  Yashiro, S.,  Akiyama, S.,  Uddin, W., Srivastava, A. K., Joshi, N. C.,  Jain, R. et al., Solar Energetic Particle Events During The Rise Phases of Solar Cycles 23 and 24, Advances in Space Research, 2013, 52, Issue 12, p. 2102.
[44] Tripathi, Durgesh,  Reeves, Katharine K.,  Gibson, Sarah E.,  Srivastava, Abhishek,  Joshi, Navin C., SDO/AIA Observations of a Partially Erupting Prominence, The Astrophysical Journal, 2013, 778, Issue 2, article id. 142, 7 pp.
[45] Srivastava, A. K.,  Lalitha, S.,  Pandey, J. C.,  Evidence of Multiple Slow Acoustic Oscillations in the Stellar Flaring Loops of Proxima Centauri, The Astrophysical Journal Letters, 2013, 778, Issue 2, article id. L28, 5 pp.
[46] Murawski, K.,  Ballai, I., Srivastava, A. K.,  Lee, D., Three-dimensional Numerical Simulation of Magnetohydrodynamic-gravity Waves and Vortices in the Solar Atmosphere, Monthly Notices of the Royal Astronomical Society, 2013, 436, 1268.
[47] Chmielewski, P.,  Srivastava, A. K., Murawski, K., Musielak, Z. E., Impulsively Generated Linear and Non-linear Alfven Waves in the Coronal Funnels, Acta Physica Polonica A, 2014, 125, 158.
[48] Awasthi, A. K., Jain, R.,  Gadhiya, P. D.,  Aschwanden, M. J., Uddin, W., Srivastava, A. K., Chandra, R., Gopalswamy, N., Nitta, N. V., Yashiro, S. et al., Multiwavelength Diagnostics of the Precursor and Main Phases of an M1.8 Flare on 2011 April 22, Monthly Notices of the Royal Astronomical Society2014, 437, 2249.
[49] Joshi, Navin Chandra, Srivastava, Abhishek K., Filippov, Boris, Kayshap, Pradeep, Uddin, Wahab, Chandra, Ramesh, Prasad Choudhary, Debi,  Dwivedi, B. N., Confined Partial Filament Eruption and its Reformation within a Stable Magnetic Flux Rope, The Astrophysical Journal, 2014, 787, Issue 1, article id. 11, 13 pp.
[50] Murawski, K., Srivastava, A. K., Musielak, Z. E., Fast Magnetic Twister and Plasma Perturbations in a Three-dimensional Coronal Arcade, The Astrophysical Journal, 2014, 788, Issue 1, article id. 8, 9 pp.
[51] Cheng, X., Ding, M. D.,  Zhang, J.,  Srivastava, A. K.,  Guo, Y.,  Chen, P. F., Sun, J. Q., On the Relationship Between a Hot-channel-like Solar Magnetic Flux Rope and its Embedded Prominence, The Astrophysical Journal Letters, 2014, 789, Issue 2, article id. L35, 7 pp.
[52] Filippov, B. P.,  Kayshap, P.,  Srivastava, A. K.,  Martsenyuk, O. V., Effects of Coronal Mass Ejections on Distant Coronal Streamers, Astronomy Reports, 2014, 58, 578.
[53] Chmielewski, P.,  Murawski, K., Musielak, Z. E.,  Srivastava, A. K.Numerical Simulations of Impulsively Generated Alfvén Waves in Solar Magnetic Arcades, The Astrophysical Journal, 2014, 793, Issue 1, article id. 43, 13 pp.
[54] Yashiro, S.,  Gopalswamy, N., Mäkelä, P.,  Akiyama, S., Uddin, W., Srivastava, A. K., Joshi, N. C., Chandra, R., Manoharan, P. K., Mahalakshmi, K., Homologous flare-CME Events and Their Metric Type II Radio Burst Association, Advances in Space Research, 2014, 54, 1941.
[55] Dwivedi, Bhola N., Srivastava, Abhishek Kumar,  Mohan, Anita, Possible Signature of Alfvén Wave Dissipation in the Localized Magnetic Funnels of the Equatorial Solar Corona, Publications of the Astronomical Society of Japan, 2014, 66, Issue SP1, id.S13 11 pp.
[56] Srivastava, A. K., Konkol, P., Murawski, K.,  Dwivedi, B. N., Mohan, A., On Thermal-Pulse-Driven Plasma Flows in Coronal Funnels as Observed by the Hinode/ EUV Imaging Spectrometer (EIS), Solar Physics, 2014, 289, 4501.
[57] Guo, Y.,  Erdélyi, R.,  Srivastava, A. K.,  Hao, Q., Cheng, X.,  Chen, P. F.,  Ding, M. D., Dwivedi, B. N., Magnetohydrodynamic Seismology of a Coronal Loop System by the First Two Modes of Standing Kink Waves, The Astrophysical Journal, 2015, 799, Issue 2, article id. 151, 10 pp.
[58] Filippov, Boris, Martsenyuk, Olesya,  Srivastava, Abhishek K.,  Uddin, Wahab, Solar Magnetic Flux Ropes, Journal of Astrophysics & Astronomy, 2015, 36, 157.
[59] Dwivedi, B. N.,  Srivastava, A. K., Magnetic Field in the Gravitationally Stratified Coronal Loops, Journal of Astrophysics & Astronomy, 2015, 36, 225.
[60] Murawski, K., Solov'ev, A.,  Kraśkiewicz, J., Srivastava, A. K., New Analytical and Numerical Models of a Solar Coronal Loop. I. Application to Forced Vertical Kink Oscillations, Astronomy & Astrophysics, 2015,  576, id.A22, 6 pp.
[61] Zhelyazkov, I.,  Chandra, R.,  Srivastava, A. K., Mishonov, T., Kelvin-Helmholtz Instability of Magnetohydrodynamic Waves Propagating on Solar Surges, Astrophysics & Space Science, 2015, 356, 231.
[62] Murawski, K., Solov'ev, A.,  Musielak, Z. E.,  Srivastava, A. K.,  Kraśkiewicz, J., Torsional Alfvén Waves in Solar Magnetic Flux Tubes of Axial Symmetry, Astronomy & Astrophysics, 2015,  577, id.A126, 11 pp.
[63] Murawski, K., Srivastava, A. K., Musielak, Z. E., Dwivedi, B. N., Multi-shell Magnetic Twisters as a New Mechanism for Coronal Heating and Solar Wind Acceleration, The Astrophysical Journal, 2015, 808, Issue 1, article id. 5, 9 pp.
[64]  Filippov, B., Srivastava, A. K.,  Dwivedi, B. N., Masson, S., Aulanier, G.,  Joshi, N. C., Uddin, W. Formation of a rotating jet during the filament eruption on 2013 April 10-11, Monthly Notices of the Royal Astronomical Society, 2015, 451, 1117.
[65]  Jelínek, P., Srivastava, A. K., Murawski, K., Kayshap, P., Dwivedi, B. N., Spectroscopic Observations and Modelling of Impulsive Alfvén Waves Along a Polar Coronal Jet, Astronomy & Astrophysics, 2015, 581, id.A131, 11 pp.
[66] Ofman, L., Parisi, M.,  Srivastava, A. K., Three-dimensional MHD Modeling of Vertical Kink Oscillations in An Active Region Plasma Curtain, Astronomy & Astrophysics, 2015, 582, id.A75, 9 pp.
[67] Pant, Vaibhav,  Srivastava, Abhishek K., Banerjee, Dipankar, Goossens, Marcel,  Chen, Peng-Fei,  Joshi, Navin Chandra, Zhou, Yu-Hao, MHD Seismology of a Loop-like Filament Tube by Observed Kink Waves, RAA, 2015, 15, Issue 10, article id. 1713.
[68] Kayshap, P., Banerjee, D., Srivastava, A. K., Diagnostics of a Coronal Hole and the Adjacent Quiet Sun by The Hinode/EUV Imaging Spectrometer (EIS), Solar Physics, 2015, 290, 2889.
[69] Falewicz, R., Rudawy, P., Murawski, K., Srivastava, A. K., 2D MHD and 1D HD Models of a Solar Flare—a Comprehensive Comparison of the Results, The Astrophysical Journal, 2015, 813, Issue 1, article id. 70, 20 pp.
[70] Zhelyazkov, I., Zaqarashvili, T. V.,  Chandra, R., Srivastava, A. K.,  Mishonov, T., Kelvin-Helmholtz Instability in Solar Cool Surges, Astrophysics & Space Science, 2015, 56, 2727.
[71] Chowdhury, Partha, Srivastava, A. K.,  Dwivedi, B. N., Sych, Robert, Moon, Y.-J., Study of Multi-periodic Coronal Pulsations during an X-class Solar Flare, Advances in Space Research, 2015, 56, 2769.
[72] Zhelyazkov, I.,  Chandra, R.,  Srivastava, A. K., Kelvin-Helmholtz Instability in an Active Region Jet Observed with Hinode, Astrophysics & Space Science, 2016, 361, 51.
[73] Kraśkiewicz, J.,  Murawski, K.,  Solov'ev, A.,  Srivastava, A. K., On the Asymmetric Longitudinal Oscillations of a Pikelner's Model Prominence, Solar Physics, 2016, 291, 429.
[74] Chandra, R.,  Chen, P. F.,  Fulara, A., Srivastava, A. K.,  Uddin, W., Peculiar Stationary EUV Wave Fronts in the Eruption on 2011 May 11, The Astrophysical Journal, 2016,  822, Issue 2, article id. 106, 8 pp.
[75] Chen, P. F.,  Fang, C.,  Chandra, R.,  Srivastava, A. K., Can a Fast-Mode EUV Wave Generate a Stationary Front?, Solar Physics, 2016, 291, 3195.
[76] Sarkar, S.,  Pant, V., Srivastava, A. K.,  Banerjee, D., Transverse Oscillations in a Coronal Loop Triggered by a Jet, Solar Physics, 2016, 291, 3269.
[77] Pant, Vaibhav, Mazumder, Rakesh, Yuan, Ding,  Banerjee, Dipankar,  Srivastava, Abhishek K., Shen, Yuandeng, Simultaneous Longitudinal and Transverse Oscillations in an Active-Region Filament, Solar Physics, 2016, 291, 3303.
[78] Srivastava, A. K., Singh, Talwinder,  Ofman, Leon,  Dwivedi, Bhola N., Inference of Magnetic Field in the Coronal Streamer Invoking Kink Wave Motions Generated by Multiple EUV Waves, Monthly Notices of the Royal Astronomical Society, 2016, 463, 1409.
[79] Zhelyazkov, Ivan, Chandra, Ramesh,  Srivastava, Abhishek K., Modeling Kelvin-Helmholtz Instability in Soft X-Ray Solar Jet, Advances in Astronomy, 2017, 2017, id.262649. 
[80] Chandra, R., Mandrini, C. H., Schmieder, B.,  Joshi, B.,  Cristiani, G. D.,  Cremades, H.,  Pariat, E.,  Nuevo, F. A., Srivastava, A. K., Uddin, W., Blowout Jets and Impulsive Eruptive Flares in a Bald-patch Topology, Astronomy & Astrophysics, 2017, 598, id.A41, 15pp.
[81] Gyenge, N., Singh, T., Kiss, T. S., Srivastava, A. K., Erdélyi, R., Active Longitude and Coronal Mass Ejection Occurrences, The Astrophysical Journal, 2017, 838, Issue 1, article id. 18, 10 pp. 
[82] Srivastava, Abhishek Kumar; Shetye, Juie; Murawski, Krzysztof; Doyle, John Gerard; Stangalini, Marco; Scullion, Eamon; Ray, Tom; Wójcik, Dariusz Patryk; Dwivedi, Bhola N., High-frequency Torsional Alfvén Waves as an Energy Source for Coronal Heating, Nature Sci. Rep. (https://www.nature.com/articles/srep43147), 2017, Volume 7, id. 43147.
[83] Rao, Yamini K.,  Srivastava, A. K.,  Doyle, J. G., Dwivedi, B. N., Origin of Impulsive Plasma Outflows due to Magnetoacoustic Shocks, Monthly Notices of the Royal Astronomical Society, 2017, 470, 2449.
[84] Kuźma, Błażej; Murawski, Kris; Kayshap, Pradeep; Wójcik, Darek; Srivastava, Abhishek Kumar; Dwivedi, Bhola N., Two-fluid Numerical Simulations of Solar Spicules, The Astrophysical Journal, 2017, 849, Issue 2, article id. 78, 9 pp.
[85] Srivastava, A. K.,  Dwivedi, B. N., Evidence of Magnetoacoustic Oscillations above the Brightened and Magnetically Active Quiet-Sun, Journal of Astrophysics & Astronomy, 2017, 38, 61.
[86] Fedun, Viktor,  Srivastava, A. K., Preface: MHD Wave Phenomena in the Solar Interior and Atmosphere, Advances in Space Research, 2018, 61, 593.
[87] Chandra, R.,  Chen, P. F.,  Fulara, A., Srivastava, A. K., Uddin, W., A Study of a Long Duration B9 flare-CME Event and Associated Shock, Advances in Space Research, 2018, 61, 705.
[88] Murawski, K.,  Kayshap, P., Srivastava, A. K.,  Pascoe, D. J.,  Jelínek, P., Kuźma, B.,  Fedun, V., Magnetic Swirls and Associated Fast Magnetoacoustic Kink waves in a Solar Chromospheric Flux tube, Monthly Notices of the Royal Astronomical Society, 2018,  474, 77.
[89] Doyle, J.G., Shetye, J., Antonova, A.E., Kolotkov, D.Y., Srivastava, A.K., Stangalini, M., Gupta, G.R., Avramova, A., Mathioudakis, M., Stellar flare oscillations: Evidence for Oscillatory Reconnection and Evolution of MHD Modes, Monthly Notices of the Royal Astronomical Society, 2018, 475, 2842.
[90] Mishra, S.K., Singh, Talwinder, Kayshap, P., Srivastava, A.K., Evolution of Magnetic Rayleigh-Taylor Instability into the Outer Solar Corona and Low Inter Planetary Space, The Astrophysical Journal, 2018, 856, 86.
[91] Srivastava, A.K.; Pandey, J.C.; Karmakar, S.; Choudhary, P.; Moon, Y.-J.; Goossens, M.; Jelinek, P.; Mathioudakis, M.; Doyle, J.G.; Dwivedi, B.N., First Evidence of the Frequency Filtering of Magnetoacoustic Waves in the Flaring Star EK DRA , 2018, arXiv:1804.08858.
[92] Kayshap, P.; Murawski, K.; Srivastava, A.K.; Dwivedi, B.N., Rotating Network Jets as Observed by IRIS, Astronomy & Astrophysics, 2018, in press.
[93] Kayshap, Pradeep; Murawski, K.; Srivastava, A.K.; Musielak, Z.E.; Dwivedi, B.N., Vertical Propagation of Acoustic Waves in the Solar Inter-Network as Observed by IRIS, MNRAS, 2018.
[94] Liu, S. et al., Super Penumbral Chromospheric Flare, RAA, 2018, 18, 130.
[95] Srivastava, A. K.; McIntosh, S. W.; Arge, N.; Banerjee, D.; Cliver, E.; Dikpati, M.; Dwivedi, B. N.; Guhathakurta, M.; Karak, B. B.; Leamon, R. J., Martens, P.; Matthew, S.K.; Munoz-Zaramillo, A.; Nandi, Dibyendu; Norton, A.; Upton, L.; Chatterjee, S.; Mzumder, R.; Yamini, K.; Yadav, R., The Extended Solar Cycle: Muddying the Waters of Solar/Stellar Dynamo Modeling Or Providing Crucial Observational Constraints?, Frontiers in Astronomy & Space Science, 2018 (https://doi.org/10.3389/fspas.2018.00038).
[96] Srivastava, A.K.; Murawski, K.; Kuzma, B.; Wojcik, D.P.; Zaqarashvili, T.V.; Stangalini, Marco; Musielak, Z.E.; Doyle, J.G.; Kayshap, P.; Dwivedi, B.N., Confined pseudo-shocks as an energy source for the active solar corona, Nature Astronomy, 2018, 2, 951-956 (https://www.nature.com/articles/s41550-018-0590-1).
[97] Solanki, Ritika; Srivastava, A.K.; Dwivedi, B.N., Study of two-stage coronal jet associated with a C1.4 class solar flare, Ap&SS, 2018, 363, 233.
[98] Kupriyanova, Elena G.; Kashapova, Larisa K.; Van Doorsselaere, Tom; Chowdhury, Partha; Srivastava, Abhishek K.; Moon, Yong-Jae, Quasi-periodic pulsations in a solar flare with an unusual phase shift, MNRAS, 2019, 483, 5499.
[99] Dikpati, M., McIntosh, S.-W., Chatterjee, S.; Banerjee, D.; Srivastava, A.K.,  Triggering The Birth Of New Cycle’s Sunspots By Solar Tsunami, 2019, Nature Sci. Rep., 9, 2035 (https://www.nature.com/articles/s41598-018-37939-z).
[100] Rao, Yamini K.; Srivastava, A.K.; Kayshap, P.; Wilhelm, K.; Dwivedi, B.N., Plasma Flows in Cool Loops, 2019, The Astrophysical Journal, 874, 56.
[101] Mishra, Sudheer K., Srivastava, A.K., The Evolution of Magnetic Rayleigh-Taylor Unstable Plumes and Hybrid KH-RT Instability into A Loop-like Eruptive Prominence, 2019, The Astrophysical Journal, 874, 57.
[103] Chatterjee, Subhamoy; Banerjee, Dipankar; McIntosh, Scott W.; Leamon, Robert J.; Dikpati, Mausumi; Srivastava, Abhishek K.; Bertello, Luca,
Signature of Extended Solar Cycles as Detected from Ca II K Synoptic Maps of Kodaikanal and Mount Wilson Observatory, 2019, The Astrophysical Journal Letters, 874, L4.
[104] Fulara, Aarti; Chandra, Ramesh; Chen, P. F.; Zhelyazkov, Ivan; Srivastava, A. K.; Uddin, Wahab, Kinematics and Energetics of the EUV Waves on 11 April 2013, 2019, Solar Physics, 294, 56.
[105] Solanki, Ritika; Srivastava, A.K.; Rao, Yamini K.; Dwivedi, B,N., Twin CME Launched by a Blowout Jet Originated from the Eruption of a Quiet-Sun Mini-filament, 2019, Solar Physics, 294, 68.
[106] Wójcik, D;  Kuźma, B.;  Murawski, K.;  Srivastava, A.K.,  Two-fluid numerical simulations of the origin of the fast solar wind, 2019,  The Astrophysical Journal,  in press.
[107] Rao, Yamini K., Srivastava, A.K., Kayshap, P., Dwivedi, B.N., Signatures of red-shifted footpoints in the quiescent coronal loop system, 2019, Ann. Geophysicae, 37,765.
[108] Singh, Balveer; Sharma, Kushagra; Srivastava, A.K.,On modelling the kinematics and evolutionary properties of pressure pulse driven impulsive solar jets, 2019, Ann. Geophysicae, 37, 891.
[109] Mishra, Sudheer K.; Srivastava, A.K., Linkage of geoeffective stealth CMEs associated with the eruption of coronal plasma channel and jet-like structure, 2019, Solar Physics, 294, 169.
[110] Srivastava, A.K., Mishra, Sudhee, K., Jelinek, P., Samanta, T., Tian, H., Pant, V., Kayshap, P., Doyle, J.G., Banerjee, D., and Dwivedi, B.N., On the observations of the forced reconnection in the solar corona, 2019, The Astrophysical Journal, 887, 137.  
[111] Kayshap,P.; Srivastava, A.K., Jelinek, P.; Tiwari, S.K.; Mathioudakis, M., Propagation of waves above a plage as observed by IRIS and SDO, 2020, Astron. Astrophys, 634, 63.
[112] Solanki, Ritika; Srivastava, A.K.; Dwivedi, B.N., CME Productive and Non-productive Recurring Jets Near an Active Region AR11176, 2020, Solar Physics, 295, 27.
[113] Srivastava, A.K.; Rao, Yamini K.; Konkol, P.; Murawski, K.; Mathioudakis, M.; Tiwarki, S.K.; Scullion, E.; Doyle, J.G.; Dwivedi, B.N., Velocity Response of the Observed Explosive Events in the Lower Solar   Atmosphere: I. Formation of the Flowing Cool Loop System, 2020, The Astrophysical Journal, 894, 155.
[114] Van Doorsselaere, Tom; Srivastava, Abhishek K.; Antolin, P.; Magyar, N.;  Vasheghani Farahani, S.; Tian, Hui; Kolotkov, D.;  Ofman, L.; Guo, M.;  Arregui, I.;
De Moortel, I.; Pascoe, D., Coronal Heating by MHD Waves, 2020, Space Science Reviews, 216 (8), 1-40.
[115] Mishra, Sudheer, K.; Srivastava, A.K.; Chen, P.-F., Large-Scale Vortex Motion and Multiple Plasmoid Ejection Due to Twisting Prominence Threads and Associated Reconnection, 2020, Solar Physics, 295, 165.
[116] Deciphering Solar Magnetic Activity: 140 Years Of The `Extended Solar Cycle' -- Mapping the Hale Cycle, McIntosh, Scott W.; Leamon, Robert J.; Egeland, Ricky; Dikpati, Mausumi;  Altrock, Richard C.; Banerjee, Dipankar; Chatterjee, Subhamoy; Cliver, Edward; Srivastava, Abhishek K.; Velli, Marco, 2021, Solar Physics, 296, 189.
 [117] Wang, T.-J.; Ofman, L; Yuan, D.; Reale, F.; Kolotkov, D.; Srivastava, A.K., Slow Magnetoacoustic Waves in Coronal Loops, 2021, Space Science Reviews, 217, 34.
[118]  Rast, Mark P.; Bello González, Nazaret; Bellot Rubio, Luis; Cao, Wenda; Cauzzi, Gianna; DeLuca, Edward; De Pontieu, Bart; Fletcher, Lyndsay et al. including  Srivstava, A.K., Critical Science Plan for the Daniel K. Inouye Solar Telescope (DKIST), Solar Physics, 2021, 296, 70. 
 [119] Prasad, Abhinav;  Srivastava,A.K.;  Wang, T.J., Role of compressive viscosity and thermal conductivity on the damping of slow waves in the coronal loops with and without heating cooling imbalance, 2021, Solar Physics, 296,  20.
[120] Prasad, Abhinav;  Srivastava,A.K.;  Wang, T.J., Effect of thermal conductivity, compressive viscosity and radiative cooling on the phase shift of propagating slow waves with and without heating-cooling imbalance, 2021, Solar Physics, Volume 296, Issue 6, article id.105.
[121] Prasad, Abhinav;  Srivastava,A.K.;  Wang, T.J., Correction to: Effect of thermal conductivity, compressive viscosity and radiative cooling on the phase shift of propagating slow waves with and without heating-cooling imbalance, 2021, Solar Physics, Volume 296,  article id.110. (please see here: https://link.springer.com/article/10.1007/s11207-021-01846-w).
[122] Srivastava, A.K.; Ballester, J.L.;  Cally, P.S.; Carlsson, M.; Goossens, M.; Jess, D.B.;  Khomenko, E.;  Mathioudakis, M.; Murawski, M.; Zaqarashvili, T.V.,  Chromospheric Heating by Magnetohydrodynamic Waves and Instabilities, 2021, Journal of Geophysical Research -- Space Physics, 126, e2020JA029097. https://doi. org/10.1029/2020JA029097.
[123] González-Avilés, J. J.; Murawski, K.; Srivastava, A. K.; Zaqarashvili, T. V.; González-Esparza, J. A.Numerical simulations of macrospicule jets under energy imbalance conditions in the solar atmosphere, 2021, Monthly Notices of the Royal Astronomical Society, Volume 505, Issue 1, July 2021, Pages 50–64, https://doi.org/10.1093/mnras/stab1261.
[124]  I.V. Zimovets; J.A. McLaughlin; A.K. Srivastava; D.Y. Kolotkov; A.A. Kuznetsov; E.G. Kupriyanova; I.-H. Cho; A.R. Inglis; F. Reale; D.J. Pascoe; H. Tian; D. Yuan; D. Li; Q.M. Zhang; Quasi-periodic pulsations in solar and stellar flares:  A review of underpinning physical mechanisms and their  predicted observational signatures, 2021, Space Science Reviews (SSRv), 217, article id. 66.
[125]  Nakariakov, V. M.;  Anfinogentov, S.A.;  Antolin, P.; Jain; R.;  Kolotkov, D. Y.; Kupriyanova, E.G.; Li, D.; Magyar, N.;  Nistico, G.;  Pascoe , D.J.; Srivastava, A.K.;  Terradas, J.;  Vashegani Farahani, S.;  Verth, G.;  Yuan, D.; Zimovets, I.V., Kink Oscillations of Coronal Loops, 2021, Space Science Reviews (SSRv), 217, 73 (file:///home/abhi/Nakariakov2021_Article_KinkOscillationsOfCoronalLoops.pdf).
[126] Srivastava, A.K.; Erdelyi, R.; Poedts, S.; Chen, P.F.; Yihua, Y., Editorial: Data-driven MHD - Novel Applications to the Solar Atmosphere, 2021, Frontiers in Astronomy and Space Sciences (FrASS), 8, 140.
[127] Srivastava, A.K.; Mishra, Sudheer K.; Jelinek, P., The prominence driven forced reconnection in the solar corona and associated plasma dynamics, 2021, The Astrophysical Journal, 920, 18.
[128]
Mishra, S.K., Singh, Balveer, Srivastava, A.K., Kayshap, P., Dwivedi, B.N., Evolution of Kelvin-Helmholtz Instability in the Fan-Spine Topology, 2021, The Astrophysical Journal, in press.
[129]
Prasad, Abhinav; Srivastava, A.K., Wang, T.-J; Sangal, K.; Role of Non-Ideal Dissipation with Heating–Cooling Misbalance on the Phase Shifts of Standing Slow Magnetohydrodynamic Waves, 2022, Solar Physics, 297, 5.
[130] Singh, B.; Srivastava, A.K.; Sharma, K.; Mishra, S.K.; Dwivedi, B.N., Quasi-periodic spicule-like cool jets driven by Alfvén pulses,  2022, Monthly Notices of the Royal Astronomical Society, 511 (3), 4134-4146. 

Book Chapters/Refereed Proceeding Papers:

[131] Srivastava, A. K.,  Kuridze, D., Zaqarashvili, T. V., Dwivedi, B. N., Rani, B., Network Loop Oscillations with EIS/Hinode, Magnetic Coupling between the Interior and Atmosphere of the Sun, edited by S.S. Hasan and R.J. Rutten; Astrophysics and Space Science Proceedings. ISSN 1570-6591 (Print) 1570-6605 (Online) Published by Springer Berlin Heidelberg; ISBN 978-3-642-02858-8 (Print) 978-3-642-02859-5 (Online), pp.437-439.
[132] Uddin, W.,  Kumar, P.,  Srivastava, A. K.,  Chandra, R., Major Surge Activity of Super-Active Region NOAA 10484, Magnetic Coupling between the Interior and Atmosphere of the Sun, edited by S.S. Hasan and R.J. Rutten; Astrophysics and Space Science Proceedings. ISSN 1570-6591 (Print) 1570-6605 (Online) Published by Springer Berlin Heidelberg; ISBN 978-3-642-02858-8 (Print) 978-3-642-02859-5 (Online), pp.478-481.
[133] Srivastava, A. K., On the Observations of Multiple MHD Oscillations in the Solar Loops, Advances in Geosciences. Volume 21: Solar Terrestrial (ST). Edited by Ip, Wing-Huen; Duldig, Marc. Published by World Scientific. ISBN #978-981-2838-20-9, 2010, pp.315-325.
[134] Srivastava, Abhishek K.,  Nakariakov, V. M.,  Dwivedi, B. N., Kumar, Pankaj, Transient Induced MHD Oscillations: A Tool to Probe the Solar Active Regions, First Asia-Pacific Solar Physics Meeting ASI Conference Series, 2011, Vol. 2, pp 271-277 Edited by Arnab Rai Choudhuri & Dipankar Banerjee.
[135] Kumar, Pankaj,  Srivastava, Abhishek K., Somov, B. V.,  Manoharan, P. K., Erdélyi, R., Uddin, Wahab, On the Triggering of M-class Solar Flare due to Loop-loop Interaction in AR NOAA 1087, First Asia-Pacific Solar Physics Meeting ASI Conference Series, 2011, Vol. 2, pp 315-321 Edited by Arnab Rai Choudhuri & Dipankar Banerjee.
[136] Kumar, Mukul, Dwivedi, B. N., Srivastava, A. K., Evidence of the Leakage of MHD Oscillations above On-Disk Coronal Hole, Advances in Geosciences. Volume 27: Solar Terrestrial (ST). Edited by Satake, Kenji; Duldig, Marc. Published by World Scientific. ISBN #978-981-4355-41-4, 2011, pp.113-127.
[137] Srivastava, A. K., Kumar, Pankaj, Zaqarashvili, T. V., Filippov, B. P., Khodachenko, M. L., Uddin, Wahab, Observation of Kink Instability as Driver of Recurrent Flares in AR 10960, Advances in Geosciences. Volume 27: Solar Terrestrial (ST). Edited by Satake, Kenji; Duldig, Marc. Published by World Scientific. ISBN #978-981-4355-41-4, 2011, pp.141-151.
[138] Pandey, J.C., Srivastava, A.K., Observations of X-Ray Flares and Associated MHD Oscillations in Star ξ Boo, Advances in Geosciences. Volume 27: Solar Terrestrial (ST). Edited by Satake, Kenji; Duldig, Marc. Published by World Scientific. ISBN #978-981-4355-41-4, 2011, pp.181-193.
[139] Srivastava, A. K., Lalitha, Sairam, MHD Seismology as a Tool to Diagnose the Coronae of X-ray Active Sun-like Flaring Stars, ASI Conference Series, 2013, Vol. 10, pp 59 - 66 Edited by N. Gopalswamy, S. S. Hasan, P. B. Rao and Prasad Subramanian.
[140] Dwivedi, B. N., Srivastava, A. K., Mohan, Anita, Estimation of Plasma Properties and Magnetic Field in a Prominence-like Structure as Observed by SDO/AIA, Nature of Prominences and their role in Space Weather. Edited by Brigitte Schmieder, Jean-Marie Malherbe and S.T Wu. Proceedings of the International Astronomical Union, IAU Symposium, Volume 300, pp. 405-407.

[141] Solanki, R., Srivastava, A.K., Dwivedi, B.N., C1.4 Class Flare and A Peculiar Coronal Jet, IAU Proceedings (IAU340), 2018, 340, 193.
[142] Mishra, Sudheer K.; Singh, Talwinder, Kayshap, Pradeep, Srivastava, A.K., Propagation of MRT Unstable Plasma Spikes in the Inter-planetary Space, IAU 340 Proceedings, 2018, 340, 237.

Under Review/In-Preparation Papers:

[1] Srivastava, A.K. et al., Observations and Modeling of new chromospheric ejecta, 2021, in preparation.
[2] Srivastava et al., Peculiar Shock Study, 2022.
[3]  Mishra, S.K. et al., MRT instability, Solar Physics, 2021.
[4] "Something on the scaling law in stellar coronae of ABDOR", ....A.K. Srivastava, 2021/2022; under review
[5] "Modeling Chromospheric Jets and Synthesis", Srivastava, A.K. et al., 2021, under review.

About the Journals and the Number of Papers Published:

(A) Nature Astronomy (Impact Factor: 14.44), No. of Papers: 01.
(B)
Space Science Reviews (Impact Factor: 8.017); No. of  Papers: 04.
(C) The Astrophysical Journal Letters; IOP Publishing, USA (Impact Factor: 7.413); No. of papers: 05.
(D) Astronomy & Astrophysics, EDP Sciences (Impact Factor: 5.802); No. of Papers: 12.
(Eh) The Astrophysical Journal; IOP Publishing, USA (Impact Factor: 5.874); No. of Papers: 29.
(F) Monthly Notices of Royal Astronomical Society, RAS, Oxford Academic, UK (Impact Factor: 5.287); No. of Papers: 16.
(G) Publication of the Astronomical Society of Japan, Oxford Academic (Impact Factor: 5.071); No.of Papers: 01.
(H) Nature Scientific Reports (Impact Factor: 4.379); No. of Papers: 02.
(I) Journal of Geophysical Research -- Space Physics (Impact Factor: 2.810): 02.

(J) Solar Physics, Springer (Impact Factor: 2.671); No. of Papers: 25.
(K) Advances in Space Research,  Elsevier (Impact Factor: 2.152); No.of Papers: 10.
(L) Astrophysics and Space Science, Springer (Impact Factor: 1.830); No. of Papers: 04.
(M) Ann. Geophysicae (Impact Factor: 1.880); No. of Papers: 02.
(N) Journal of Astrophysics & Astronomy, Springer (Impact Factor: 1.270); No.of Papers: 04.
(O) Research in Astronomy & Astrophysics, IOP Publishing (Impact Factor: 1.512); No. of Papers: 01.
(P) New Astronomy, Elsevier (Impact Factor: 1.325); No. of Papers: 04.
(Q) Astronomy Reports, Springer(Impact Factor: 0.980); No.of Papers: 01.

Note: I.F. in 2020
 

[1] As a Principal Investigator:

[1] "Novel Observations and Modeling of the Heating and Dynamical Plasma Processes in the Localized Solar Atmosphere", ISRO Project Grant, PI: Dr. A.K. Srivastava, Co-PIs: Dr. Aveek Sarkar (PRL), Dr. Amit Pathak (BHU), Duration:- 2022-2025; Grant:- Rs. 28,03,520/-

 [2]  "The Sun under the Microscope - An Integrated Research Activity to Maximise the Science Return from a New Generation of Missions to Study the Sun", UK-India Education and Research Initiative (UKIERI), Indian PI: Dr. A.K. Srivastava; UK PI: Prof. Mihalis Mathioudakis (Queens University, Belfast); Indian Grant: 19,28,180-Rs; UK Grant:- 25,500 GBP (~25,00,000-Rs.) Duration:- 2018- 2021.

 [3]   An Indo-US Science and Technology Forum (IUSSTF) Joint R&D Virtual Networked Centre on "Inference of Solar Variability across Scales: Connecting the Disparate Scales of Magnetism throughout the Solar Atmosphere”, Indian PI: Dr. A.K. Srivastava, Department of Physics, IIT (BHU), US PI : Prof. S.-W. McIntosh, High Altitude Observatory (HAO), NCAR, Boulder; Project Grant: Rs. 41,45,100; Duration: 2017- October, 2019.

 [4]  "MHD Waves in the Solar Atmosphere and Refined Magnetoseismology", RESPOND-ISRO Project; PI: Dr. A.K. Srivastava, Grant: Rs. 24,23,000; Duration: 2016-2019.

 [5] "Observations and Modeling of Solar Transients and Space Weather Candidates", SERB-DST Young Scientist Project; PI: Dr. A.K. Srivastava; Grant: Rs. 18,06,000; Duration: 2016-2019.

 [6]  “Advanced Fluid Dynamics and Applications”, IIT Kharagpur, MHRD Scheme: Global Initiative for Academic Networks with Prof. Robert von-Fay Siebenburgen, The School of Statistics and Mathematics, The University of Sheffield, UK; PI: Dr. A.K. Srivastava; Grant: Rs. 8,16,000; Duration: 2016.

 [7]  International Conference Related Funds: A new international conference series at IIT (BHU) titled “Dynamic Sun: I. MHD Waves and Confined Transients in the Magnetised Atmosphere”; Organizer: Dr. A.K. Srivastava; Total Grant: Rs. 8,58,342; Duration: 2016.

      (a) Project Funding by American Airforce (Asian Office of Airforce Research and Development; AOARD) for its organization; Grant: Rs.3,28,238 ; PI: Dr. A.K. Srivastava, Duration: 2016.
      (b) Funding by European Space Agency (ESA) Grant: Rs. 1,80,104; PI: Dr. A.K. Srivastava, Duration: 2016.
      (c) Funding by SERB-DST; Grant: Rs.1,00,000 ; PI: Dr. A.K. Srivastava, Duration: 2016.

      (d) Fund granted by Indian Institute of Astrophysics (IIA), Bangalore, Grant: Rs. 1,50,000; Duration: 2016.
       (e) Fund granted by Physical Research Laboratory (PRL), Grant: Rs. 50,000; Duration: 2016.
       (f) Fund granted by IIT (BHU), Grant: Rs. 50,000; Duration: 2016.

 [8]   “Study of MHD Waves and Dynamical Plasma Processes in the Localized Solar Chromosphere”, Institute Research Project, PI: Dr. A.K. Srivastava, Grant: Rs 14,16,800, Duration: 2016.

 [9]    “Multi-wavelength Study of Solar Flares/CMEs and Associated Dynamical Processes”, DST Indo-Austrian Project, Indian PI: Dr. A.K. Srivastava, Austrian PI: Dr. T.V. Zaqarashvili, Grant: Rs. 4,42,000, Duration: 2013-2015.

 [10]    Seed money grant for establishment of Advanced Solar Computation & Analysis Laboratory (ASCAL), PI: Dr. A.K. Srivastava, Grant: Rs. 9,00,000, Duration: 2014-2015.

 [11]    “Study of Dynamical Events in the Solar Atmosphere during Maximum of Solar Cycle 24”, DST-RFBR Project; Indian PI: Dr. A.K. Srivastava; Russian PI: Dr. B.P. Filippov; Indian Grant: Rs. 12,00,000 (12 LAKH); Duration: 2012-2014.

 [12]    “Multiwavelength observations and modeling of transient events and waves in the solar atmosphere”, DST-RFBR Project; Indian PI: Dr. A.K. Srivastava; Russian PI: Dr. B. P. Fillipov; Indian Grant: Rs. 5,13,200; Duration:
2009-2011.

[2] As a Co-principal Investigator:

 [13]  ISRO RESPOND Project on "Solar Flares: Physics and forecasting for better understanding of Space Weather", Duration:- 2022-2025, PI: Prof. Durgesh Tripathi (IUCAA, Pune), Co-PI:- Dr. A.K. Srivastava, Grant:- 43.67 LAKH. This project is specially based on the prediction and modeling of the solar flares in the frame-work of Solar Ultraviolet Imaging Telescope (SUIT; PI: Prof. D. Tripathi) which is a payload on the upcoming national solar space mission Aditya-L1.

 [14]  The BRICS project titled “Superflares on Stars and the Sun” is based on collaboration of the leading research groups from BRICS countries: Russia, India and China along with the active participation of UK (https://warwick.ac.uk/fac/sci/physics/research/cfsa/people/valery/research/superflares/teams/); PI: Prof. D. Banerjee and Co-I: Dr. A.K. Srivastava (India); Prof. V.M. Nakariakov (UK); Prof. Bo Li (China), Dr. Alexey Kuznetsov and Dr. Robert Sych (Russia). Duration: 2018-2021; Project Grant:- Rs. 34,18,584.

 [15]   An international project related to the scientific network on "Pulsations in solar flares: matching observations and models", Co-I: Dr. A.K. Srivastava, Funded by International Institute of Space Science (ISSI)- BJ, Grant:- Approx. 1,00,000 RMB (approx 12 Lakh Rs); October 2017-November 2019.

 [16]  Royal Society International Exchange Scheme on "Study of MHD Waves and Instabilities in Localised Solar Jets" with Prof. R. Erdelyi and his group, The School of Statistics and Mathematics, The University of Sheffield, U.K;Grant: 12,000 GBP; Duration: 2014-2016.

 [17]  Indo-Bulgarian Project entitled “Study of Waves and Eruptive Phenomena in the Solar Atmosphere”; Indian PI: Dr. R. Chandra; Indian Co-PI: Dr. A.K. Srivastava; Bulgarian PI : Prof. I. Zhelyazkov; Grant: Rs. 14,55,000; Duration: 2013-2016.

 [18]   A DST-RFBR (Indo-Russian) Project (Ref: INT/RFBR/P‐165) with Dr. B.P. Filippov, IZMIRAN, Russia. Indian PI : Dr. W. Uddin, ARIES, Nainital; Indian Co-I: Dr. A.K. Srivastava; Duration: 2014-2016.

 [19]   An Indo-US Science and Technology Forum (IUSSTF) Joint R&D Network on "Multiwavelength Study of Solar Eruptive Phenomena and their Interplanetary Responses”; US PI : Prof. N. Gopalswamy (NASA-GSFC); India PI : Dr. W. Uddin (ARIES, Nainital); Co-I: Dr. A.K. Srivastava and other colleagues from Indian and USA; Grant: Rs. 36,59,000; Duration: 2011-2013.

 [20] A RESPOND-ISRO Project titled “Study of Dynamical Processes in the Solar Atmosphere” ; Prof. Ramesh Chandra (PI), and Dr. A.K. Srivastava (co-PI); Grant: Rs. 11,88,000; Duration:- 2013-2016.

[3] Ph.D. Student's Grant and Project:- 

[21] Ph.D. student Mr. SRIPAN Mondal has received prestigious PMRF (Prime Minister Research Fellowship) in 2022 for the five years. His PMRF project is to understand the novel role of magnetic reconnection in the heating and dynamical processes of the Sun's magnetized atmosphere. 

Awards/Honors/Recognitions/Achievements :

[A] Awards and Various Recognitions:

1. Received The 1st Best Teacher Award constituted by IIT (BHU) in 2021.
2. 2019 Laxminarayana & Nagalaxmi Modali Award from the Astronomical Society of
India (ASI).
3. Fellow of the Royal Astronomical Society (FRAS), UK (elected in 2014).
4. Served on NASA Review Panel to Review the Grant Proposals in Solar and Heliospheric Physics in 2021.
5. Editor, Journal of Astrophysics & Astronomy (Indian Academy of Sciences), published by SPRINGER, an international peer-reviewed journal [Tenure:- 2016-2021].
6. Served as a Member on ISRO's National Level Study Committee titled "Aditya-L1 Space Weather Monitoring and Predictions Plan (ASWMP)" in 2020.
7. Serving as a Member on SUIT Science Management Panel (SSMP) for Aditya-L1 Space Mission.'

[B] Member of the Professional Bodies:

1. Life-time Member, Astronomical Society of India (ASI) since 2014.
2. Life-time Member, International Astronomical Union (IAU) since 2015.
3. Elected Member of Royal Astronomical Society, UK (elected in 2014).
4. Life-time member, Plasma Science Society of India (PSSI), 2019.
5. Indian Association for General Relativity and Gravitation (IAGRG).

Group Members:

Ph.D. Students:

[1] Mr. Balveer Singh, CSIR--NET JRF (2017); Working on the Numerical Simulations of Waves and Transients in the Solar Atmosphere
[2] Ms. Kartika Sangal, CSIR-NET JRF (2018); Working on Chromospheric Plasma Dynamics and Their Responses in the Overlying Corona
[3] Ms. Shweta Didel, CSIR-NET JRF (2019); Working on Physical Processes in Solar and Stellar Flares.
[4] Mr. Srikar, T.D.P., Scientist-SE, UR Rao Satellite Centre (ISRO), India;  Ph.D. Student; Supervisor: Dr. A.K. Srivastava; Co-Supervisor:- Prof. K. Sankarsubramanian 
[5] Mr. Sripan Mondal, T.A., Ph.D. Student 2021.

IDD/M.Tech/M.Sc. Students:

[1] Ms. Pratyaksha Chauhan, IDD Engineering Physics, Numerical Modeling of Tranients; M.Tech Student.
[2] Mr. B. Niranjan,  IDD Engineering Physics, Wave Modeling; Stream Project Student.
[3] Ms. Anshika Singh, IDD Engineering Physics, Analytical and Numerical Modeling of Two Fluid Plasma; Stream Project Student.
[4] Mr. Saksham Pandey, IDD Engineering Physics, 3-D MHD Modelling of Waves & Transients; Exploratory Project Student.
[5] Ms. Ritika Mishra, IDD Engineering Physics, Stellar Flares; Exploratory Project Student.

Past Group Members:

[A] Ph.D. Students:

[1] Dr. Pradeep Kayshap; Former Ph.D. Student; At present working as an Assistant Professor of Physics at VIT. 
      Thesis: Study of Waves and Transients in the Solar Atmosphere; 2016.

[2] Dr. Ritika Solanki; Former Ph.D. Student;
      Thesis: Study of Coronal Jets and Associated CMEs
      At present working as an Assistant Professor, Department of Physics, CSJM Kanpur University.    

[3] Dr. Yamini, K. Rao; Former Ph.D. Student (award year: 2020); At present PDRA at Department of Applied Mathematics and Theoretical Physics, CAMBRIDGE University, United Kingdom.
      Thesis: Plasma Flows and Their Physical Implications in the Sun's Atmosphere, 2020.

[4] Dr. Sudheer Kumar Mishra; Former Ph.D. Student (award year: 2020); At present joined as a Post-doctoral Fellow at Indian Institute of Astrophysics (IIA), Bangalore.
Thesis: "Study of Eruptive Prominences and Their Response in the Sun's Atmosphere"

[B] IDD Engg. Phys./M.Tech Students

[1]  Dr. Talwinder Singh; Former M.Tech. Student; 
      Currently Research Scientist I at The Center for Space Plasma and Aeronomic Research (CSPAR), University of Albama The University of Alabama in Huntsville.
     Thesis Topic: Global EUV Waves and Their Interaction with Solar Coronal Structures, 2016.
     

[2] Mr. Gaurav  Tomar; Former M.Tech Student; Currently working at Axtria Technology
      Evolution of Kink Waves in Coronal Streamers (2018).
           
[3]  Mr. Sangram Dehuri ; Former M.Sc. Project Student
Thesis : "Numerical Simulations of MHD Jet in the Sun's Atmosphere" M.Sc. Dissertation  (2021) 
 

[4]  Mr. Devendra P. Saini ; Former M.Sc. Student; 
      M.Sc. Dissertation (Thesis) Topic: "
Analytical Study of Magnetohydrodynamic Wave Modes in Solar Magnetic Structures" (2022).

[5]  Mr. Abhinav Prasad ; Former IDD/M.Tech Student; Joining Boston University (USA) as a Ph.D. Scholar in the area of Magnetospheric Research.
      IDD/M.Tech. Dissertation (Thesis) Topic: "
Role of Heating-Cooling Imbalance on the Properties of Slow Magnetoacoustic Wave" (2022).

[6]  Mr. Kushagra Sharma; Former IDD/M.Tech Student; Joining "EVERSANA".
     IDD/M.Tech. Dissertation (Thesis) Topic: "Python-based Finite VolUme MHD SolvER (PyFUMER) to Model the Dynamics of Magnetized Single Fluid Plasma" (2022).

Achievements of the Group Members:

Some Key Achievements of My Ph.D./PG/UG Students: -

(i) Ph.D. student Yamini K. Rao received the best poster award in an international meeting of International Astronomical Union (IAU), February 2018.

(ii) Yamini K. Rao has received “Special Mention” Gymkhana Awards from Science and Technology
Council, IIT (BHU) in May 2019.

(iii) Yamini K. Rao is selected in the Heliophysics Summer School in Boulder USA, 2019 under NASA Living with a Star Program. She availed full financial support of travel and local expanses.

(iv) Yamini K. Rao received visiting grant for 1 month to work at Lockheed Martin Solar and Astrophysics Laboratory (LMSAL), Palo Alto, USA during July-August 2019.

(v) Dr. Yamini K. Rao has joined 03-year Post-Doctoral Assistant (PDRA) position at CAMBRIDGE University, United-Kingdom in 2021.

(vi) Dr. Yamini K. Rao has been granted "Alumni Visiting Faculty" during 2021-2022, and 2022-2023 at IIT (BHU).

(vii) Ph.D. Sudheer K. Mishra has received full visiting grant of 02 months from Prof. P.-F. Chen to work with him at Nanjing University China during October-December 2019.

(viii) Dr. Sudheer K. Mishra has been joined as a Post-Doctoral Research Fellow at Indian Institute of Astrophysics, Bangalore since June 2021.

(ix) After completing Ph.D. in 2020, Dr. Ritika Solanki joined as an Assistant Professor at Department of Physics, School of Sciences, CSJMU, Kanpur.

(x) UG project students, Mr Kushagra Sharma and Mr. Abhinav Prasad were selected in summer internship with grant support to work at KU Leuven, Belgium in summer 2020.

(xi) IDD/M.Tech project student, Mr. Abhinav Prasad has published 03 lead author papers in peer-reviewed Solar Physics journal (Springer, I.F: - 2.671).

(xii) Mr. Abhinav Prasad has been granted a SOLARNET International Project under European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement No. 824135 in 2021.

(xiii) In the Master's project, Mr. Kushagra Sharma has developed a basic structure of the python-based MHD code PyFUMER, and he has co-authored scientific papers.

(xiv) M.Tech Project Student, Mr. Abhinav Prasad has given oral presentations in various prestigious international/national conferences (e.g., Royal Astronomical Society - Special Discussion Meeting, 39th Annual Meeting of the Astronomical Society of India, National Astronomy Meeting (NAM) in the United Kingdom, European Solar Physics Meeting (ESPM)-2021, European Solar Physics Seminar).

(xv) M.Tech project student Mr. Kushagra Sharma is placed in a multinational company, while Mr. Abhinav Prasad has been granted Ph.D. positions at Boston University in USA.

(xvi) Ph.D. student Mr. SRIPAN Mondal has been granted by prestigious PMRF (Prime Minister Research Fellowship) in 2022 for the five years. His PMRF project is to understand the novel role of magnetic reconnection in the heating and dynamical processes of the Sun's magnetized atmosphere.

International Academic Visits:

(a) Visiting Scientist/Research :

(1) Armagh Observatory, United-Kingdom, 2007.
(2) IZMIRAN, Troistk, Mascow, Russia, 12-25 March 2010.
(3) School of Mathematics and Statistics, University of Sheffield, United Kingdom,14-29 April 2010.
(4) IZMIRAN, Troitsk, Mascow, Russia, 18-30 November 2010.
(5) School of Mathematics and Statistics, University of Sheffield, United Kingdom, 4-16 April 2011.
(6) University of Maria Curie-Sklodowska, Lublin, Poland, 19th May-01st June 2011.
(7) Goddard Space Flight Center-NASA, Maryland, USA, May, 2013.
(8) California State University, Northridge, USA, June 2013.
(9) University of Maria Curie-Sklodowska, Lublin, Poland, 01 September-15 September 2013.
(10) School of Astronomy and Space Science, Nanjing University, Nanjing, China, 27 October- 2 November 2013.
(11) University of Maria Curie-Sklodowska, Lublin, Poland, 27 September-9 October 2014.
(12) School of Mathematics and Statistics, University of Sheffield, United Kingdom,18-30 December 2014.
(13) School of Mathematics and Statistics, University of Sheffield, United Kingdom, 13-21 May 2015.
(14) Debrecen Heliophysical Observatory (DHO), Hungary, May 2015.
(15) University of Maria Curie-Sklodowska, ul. Radziszewskiego 10, 20-031, Lublin, Poland, June 2016.
(16) The University of Sheffield, United Kingdom, November 2016.
(17) University of Maria Curie-Sklodowska, Lublin, Poland, June 2017.
(18) High Altitude Observatory, NCAR, Boulder, Colorado, USA, 30 April-13 May 2018.
(19) University of Maria Curie-Sklodowska, Lublin, Poland, 4-16 June 2018.
(20) Queen's University, Belfast, UK.
(21) Armagh Observatory, Armagh, UK.
(22) Astronomy Research Centre, Queen's University, Belfast, United Kingdom, 1-6 June 2019.
(23) Northumbria University, New Castle, United Kingdom, 6-8 June 2019.
(24) University of Maria Curie-Sklodowska, Lublin, Poland, 8-21 July 2019.

(b) Visit in International Conferences:

(1) Hiode-I, Trinity College, Dublin, Republic of Ireland, 2007.
(2) Anji, China, 11-24 July 2009, Solar Eclipse Expedition
(3) AOGS-Meeting, Singapore, 11-15 August 2009.
(4) International Space Plasma Symposium (ISPS), Tainan, Taiwan, 15-19 August 2011.
(5) APSPM-2013, Hangzhou, China, 24-26 October 2013.
(6) BUKS-2015/Ruderman Honorary Meeting in Hungary, 22-29 May 2015.
(7) IBUKS-2016, KU Leuven, Belgium, June 2016.
(8) 8th Coronal Loop Workshop, Palermo, Italy, May 2017.
(9) AOGS-2017, Singapore, August, 2017.
(10) International Solar Physics Conference, Tbilisi, Georgia, September 2017.
(11) The first meeting of the ISSI-BJ Scientific Group Meeting, October 2017, Beijing, China.
(12) The second meeting of the ISSI-BJ Scientific Group Meeting, 14-18 October 2019, Beijing, China.
 

Meetings and Conferences in India:
 
1. Magnetic Coupling between the Interior and the Atmosphere of the Sun : “ Centenary Commemoration of the Discovery of the Evershed Effect”, IIA, Bangalore, India, December 2-5, 2008.
2. AOGS -2010, Hyderabad, India in July 2010.
3. APSPM-2011, IIA, Bangalore, India in March 2011.
4. Workshop on Physics of the Solar Transition Region and Corona during 5-7 September 2011 at IUCAA, Pune, India.
5. Solar Radio Workshop during 23-25 November 2011 at NCRA-TIFR, Pune, India.
6. Meeting of Science with Planned and Upcoming Solar Facilities in the Country during 2-3 November 2011 at Indian Institute of Astrophysics, Bangalore, India.
7. JEST-2012 coordinators meeting, 26 September 2011, IISc Bangalore, India.
8. Indo-US Project Discussion Meetings at ARIES and RAC, Ooty in January 2012.
9. COSPAR-2012 at Mysore, India during July 2012.
10. Indo-US Project Discussion Meetings at ARIES and RAC, Ooty in July 2012.
11. International Symposium on Solar Terrestrial Physics, November 6-9, 2012, IISER, Pune, India.
12. Indo-UK Seminar (A Workshop funded by Royal Society and DST), January 2013, IIA, Bangalore, India.
13. Aditya and NLST Meeting, IIA, Bangalore, November 2013.
14. Indo-UK Seminar, 26-28 March 2014, ARIES, Nainital.
15. Aditya/SUIT Science Team Meeting on 16-17 December 2015, Udaipur Solar Observatory.
16. ASI-2017, Jaipur, India.
17. ASI-2018, Hyderabad, India.
18. International Astronomical Union Meeting (IAUS340), Jaipur, India, February 2018.
19. National Conference at Kumaun University, 2018.
20. PLASMA-2019, December 2019.
21. ASI-2020, Tirupati, India.

Visit by the Foriegn Faculties to Our Department for Joint Collaborative Works:

1. Prof. R. Erdelyi, School of Statistics and Mathematics, The University of Sheffield, Sheffield, UK, March 2014.
2. Dr. Viktor Fedun, Space Systems Laboratory, Department of Automatic Control and Systems Engineering, University of Sheffield, S1 3JD, UK, March 2014.
3. Dr. Boris P. Filippov, IZMIRAN, Troitsk, Moscow, Russia, November 2014.
4. Dr. Olesya Martsenyuk, IZMIRAN, Troitsk, Moscow, Russia, November 2014.
5. Prof. R. Erdelyi, Dr. Viktor Fedun, Dr. M. Korsos, Sheffield University, March 2015.
6. Prof. R. Erdelyi, Sheffield University, March 2015, September 2016.
7. Dr. Robert J. Leamon, NASA-Goddard Space Flight Center, USA, February 2018.

8. Dr. S.K. Tiwari, LMSAL, Palo-Alto, USA, February 2018, 2019.

As An Editor:

(i) Worked as a Guest Editor (V. Fedun, A.K. Srivastava, R. Erdelyi, J.C. Pandey) for the Special Issue (March 2015) of Journal of Astrophysics & Astronomy (JoAA), Springer (http://link.springer.com/journal/12036/36/1/page/1).

(ii) Editorial Board Member for the Journal of Astrophysics & Astronomy (JoAA), Springer and Indian Academy of Sciences (IAS), Bangalore [2016-2021].

 (iii) Guest Editor with Dr. V. Fedun for a Special Issue of Advances in Space Research (Elsevier), 2018 (https://www.sciencedirect.com/journal/advances-in-space-research/vol/61/issue/2).

(iv) Guest Editor in the forthcoming  special issue Solar magnetism from interior to corona and beyond in Ann. Geophysicae (Guest editors: V. Fedun, S. Shelyag,  E. Scullion, A.K. Srivastava, G. Verth,  M. Temmer, 2018-2019).

(v) Associate Editor in Solar and Stellar Physics, Frontiers in Astronomy and Space Sciences  (2022 onwards).

(vi) Topical Issue: Data-driven MHD: Novel Applications to the Solar Atmosphere, in Frontiers in Astronomy & Space sciences; Editors: Dr. A.K. Srivastava (IIT BHU, India); Prof. R. Erdelyi (Sheffield University, UK); Prof. Stefaan Poedts (KU Leuven, Belgium); Prof. Peng-Fei Chen (Nanjing University China); Prof. Yihua Yan (National Astronomical Observatory, CAS, Beijing, China). https://www.frontiersin.org/research-topics/11278/data-driven-mhd-novel-applications-to-the-solar-atmosphere

 
As A Referee :

(i) Reviewed scientific papers of various peer-reviewed international journals.

(ii) Reviewed grant/project proposals at national and international levels.

(iii) Worked as a Reviewer and Ph.D. Examiner at the School of Statistics and Mathematics, The University of Sheffield, United-Kingdom (2016).

(iv)  Different committees for best poster, best thesis awards in the Astronomical Society of India (ASI) events.

[A] Conferences Organized/SOC/LOC:

[1] A full day scientific session entitled "Transient Phenomena and Magnetic Waves in the Sun and Sun-like Stars" was organized in AOGS-2010 during 5-9 July 2010 at Hyderabad, INDIA. Conveners were Dr. A.K. Srivastava; Prof. V.M. Nakariakov (The University of Warwick, UK), and Prof. M.J. Aschwanden (LMSAL, USA).

[2] A scientific session entitled "Waves and Transients in Solar and Stellar Atmospheres" was held in UKSP NAM Meeting on 18th April 2011 in UK. Conveners were Drs. I. DeMoortel (St. Andrews University, Scottland, UK), Erwin Verwichte (University of Warwick, UK), Y.Taroyan (Aberystwyth University, UK), and A.K. Srivastava.

[3] A scientific session ST-16 entitled "Solar Eruptive Phenomena and Their Consequences in the Current Cycle 24" was held in AOGS-2011 during 8-12 August 2011 at Taipei, Taiwan. Conveners were Dr. T.V. Zaqarashvili (Graz University, Austria), Dr. A.K. Srivastava, Prof. Stefaan Poedts (KU Leuven, Belgium), and Prof. Yihua Yan (National Astronomical Observatories, China).

[4] SOC member in “Eclipse on the Coral Sea : Cycle 24 Ascending ((GONG 2012, LWS/SDO-5, and SOHO 27)”, November 12-16 2012 , Palm Cove , Queens Land , Australia.

[5] Organized Indo-UK Workshop on “Plasma Processes in the Solar and Space Plasmas at Diverse Spatio-temporal Scales : Upcoming Challenges in the Science and Instrumentation”, 26-28 March 2014; ARIES, Nainital, India. The international conference was funded by Royal Society (UK) and DST (India).

[6] Originated a new international conference series Dynamic Sun: I. MHD Waves and Confined Transients in the Magnetized Atmosphere, at Department of Physics, IIT (BHU), Varanasi during 22-26 February 2016. The Conference was funded by European Space Agency (ESA); Asian Office of Aerospace Research and Development (AoARD) for USA; DST; IIA, PRL, Sheffield University, and IIT (BHU).

[7] Organized Global Initiative of Academic Network (GIAN) with Prof. Robert von-Fay Siebenburgen, The University of Sheffield, UK in September 2016 at IIT (BHU).

[8] Organized a conference session “ST07 Diagnosing Solar Flares Through UV Spectroscopy and Imaging” with Dr. Hui Tian, S. Imada, and D. Graham in AOGS-2016, Bejing, China.

[9] Part of the organization of of Dynamic Sun: II. Solar Magnetism from Interior to the Corona at Simen Riep, Cambodia during 12-16 February 2018.

[10] LOC Member of the IAUS340 at Jaipur, India during 19-23 February 2018.

[11] SOC Member, IRIS-2019, IIA, Bangalore, India during 4-8 November 2019.

[12] SOC Member, IIA-50: Advances in Observations and Modelling of Solar Magnetism and Variability, 1-4 March 2021, IIA, Bangalore, India.

[13] SOC Member, High‐End Workshop on "Solar Activities and their Influences in the Heliosphere and Planetary Atmospheres" , NIT Calicut, 8-14 March 2021.

[14] SOC Member, Hinode-15/IRIS-12 Meeting, Prague, Czech Republic during September 19-23, 2022.

[15] Member of the Organizing Committee of Vidyarthi Vigyan Manthan (VVM-2022: A joint venture of Vigyan Bharti, Vigyan Prasar, and NCERT), 28-29 May 2022, IIT (BHU), Varanasi, India.

[B] Session Chaired in Various International/National Conferences :

[1] In ST02 session, AOGS-2010 at Hyderabad, India during August 2010.

[2] Chair of the Session “Coronal Heating in COSPAR-2012 organized by Drs. Andrea Verdini and Robert Walsh in 2012.

[3] Chair a session in the Indo-UK Seminar (A Workshop funded by Royal Society UK and DST), January 2013.

[4] SOC (co-chair), LOC (Chair) of “Dynamic Sun : I. MHD Waves and Confined Transients in the Magnetized Atmosphere”, 22-26 February 2016.

[5] Chair of the Inaugural Scientific Session of IBUKS-2016, KU Leuven, Leuven, Belgium.

[6] Session Chair: Sun and Solar Systems in Astronomical Society of India (ASI) Meeting, Jaipur, 2017.

[7] Session Chair : Sun and Solar Systems in XXXVI Astronomical Society of India (ASI) Meeting, Osmania University, Hyderabad,2018.

[8] Session Chair: ISSI-BJ Workshop on Oscillatory Processes in Solar and Stellar Corona, 14th October 2019, National Space Science Center, Beijing, China.

[9] Session Chair: IRIS-10 International Meeting, 4th November 2019, Bangalore, India.

[10] Session Chair, 39th ASI Meeting, 2021. Parallel Session : Sun and Solar System III and IV; Time: Feb 23, 2021 11:00 AM India.

[11] Session Chair, IIA-50 International Conference, Session:- “Dynamos, Cycles and Solar - Stellar Connections” during 8:30 - 10:30 AM (IST), Thursday, March 4, 2021.

[12] Session Chair in Solar Activities and their Influences in the Heliosphere and Planetary Atmospheres" - 2021, Session Chair during the Invited Talk of Prof. D. Banerjee
Director ARIES; Student Presentation and Evaluation Session.

[13] Session Chair, Future Mission Discussion Meeting by ISRO, 6th July, 2021.

[C] National and International Conferences Attended:

[1] The 2nd UN/NASA Workshop on The International Heliophysical Year and Basic Space Science, IIA, Bangalore, India, 27 November – 1 December 2006.

[2] National Astronomy Meeting, The Centre for Astrophysics at UCLan, UK, April 2007.

[3] The First Hinode Meeting, Trinity College Dublin, Dublin, Ireland, 20-24 August 2007.

[4] Magnetic Coupling between the Interior and the Atmosphere of the Sun : “Centenary Commemoration of the Discovery of the Evershed Effect”, IIA, Bangalore, India, December 2-5, 2008.

[5] The Indo-South Africa Workshop on Astronomy, ARIES, Nainital, 30 October-1 November 2008.

[6] Asia Oceania Geosciences Society (AOGS), Singapore , 11-15 August 2009.

[7] Asia Oceania Geosciences Society (AOGS), Hyderabad, India, 5-9 July 2010.

[8] Asia Pacific Solar Physics Meeting (APSPM)-2011, IIA, Bangalore, India, 22-25 March 2011.

[9] International Space Plasma Symposium, 15-19 August 2011 at Institute of Space, Astrophysical & Plasma Sciences, NCKU, Tainan, Taiwan.

[10] Workshop on Physics of the Solar Transition Region and Corona during 5-7 September 2011 at IUCAA, Pune, India.

[11] Solar Radio Workshop during 23-25 November 2011 at NCRA-TIFR, Pune, India.

[12] Meeting of Science with Planned and Upcoming Solar Facilities in the Country during 2-3 November 2011 at Indian Institute of Astrophysics, Bangalore, India.

[13] JEST-2012 coordinators meeting, 26 September 2011, IISc Bangalore, India.

[14] COSPAR-2012 at Mysore, India during 14-22 July 2012.

[15] International Symposium on Solar Terrestrial Physics, November 6-9, 2012, IISER, Pune, India.

[16] Indo-UK Seminar at IIA Bangalore (A Workshop funded by Royal Society and DST), 21-23January 2013.

[17] 2nd APSPM Meeting at Honghou, China during 22-26 October 2013.

[18] NLST§Aditya-L1 Science meeting, 18§-20 November, 2013, Indian Institute of Astrophysics, Bangalore, India.

[19] Indo-UK Seminar, 26-28 March 2014, ARIES, Nainital.

[20] BUKS Meeting/Ruderman Honorary Meeting at Budapest Hungary in 25-29 May 2015.

[21] Aditya/SUIT Science Team Meeting on 16-17 December 2015, Udaipur Solar Observatory.

[22] IBUKS-2016, 13-17 June 2016; KU Leuven, Leuven, Belgium.

[23] The 35th Annual Meeting of the Astronomical Society of India (ASI), Jaipur, India, 6 - 10 March, 2017.

[24] Asia Oceania Geosciences Society (AOGS), Singapore, 6-11 August 2017.

[25] Our mysterious Sun: magnetic coupling between solar interior and atmosphere”, Tbilisi, Georgia during September 25-29, 2017.

[26] The 8th Coronal Loop Workshop, Palermo, Italy, 27-30 June 2017.

[27] The first ISSI-BJ Meeting on Oscillatory Processes in Solar and Stellar Corona, National Space Science Centre, Beijing, China, 16-20 October 2017.

[28] IAUS 340: Long-term datasets for the understanding of solar and stellar magnetic cycles, Jaipur, India, 19-23 February 2018.

[29] The 36th Annual Meeting of the Astronomical Society of India (ASI), Osmania Univeristy, Hyderabad, India, 5-9 February 2018.

[30] Advances in Physics from Small to Large Scales (APSLS-2019); Kumaun University, 14-16 March 2019.

[31] The second ISSI-BJ Workshop on Oscillatory Processes in Solar and Stellar Corona,, National Space Science Center, Beijing, China, 14th-18th October 2019.

[32] The 34 National Symposium on Plasma Science & Technology (PLASMA-2019), 3-6 December 2019.

[33] The 38th Annual Meeting of the Astronomical Society of India, IISER Tirupati, 14-18 February 2020.

[34] Coronal Seismology (CS-2020), Warwick University, UK, 8-11 December 2020.

[35] The 39th Annual Meeting of the Astronomical Society of India, 18-23 February 2021 (on-line mode).

[36] "IIA-50: Advances in Observations and Modelling of Solar Magnetism and Variability", Online International Conference, 1-4 March 2021.

[37] "Solar Activities and their Influences in the Heliosphere and Planetary Atmospheres", NIT Calicut, 8-14 March 2021 (online mode).

[38] "PLUTO Symposium", 28-29 June 2021, The PLUTO Coe Community and Developers (online mode).

[39] Future Mission Discussion Meeting by ISRO, 6-7 July 2021 (online mode).

[40] A National meet on Aeronomy Research, with theme ‘Science of Near-Earth Space &  Applications’ in virtual mode, on May 10, 2022.

Invited and Contributed Talks

[1] A talk delivered entitled “Solar System Research at ARIES” on 6th September 2008 during the visit of Secretary, DST, Prof. T. Ramasami at ARIES, Nainital.

[2] A talk delivered to the Foreign Journalists entitled “ARIES: An Introduction” on 22nd October 2008.

[3] A contributed talk delivered entitled “On the fast sausage oscillations in cool postflare loop”, 31 Oct 2008, Indo-South Africa Workshop on Astronomy, ARIES, Nainital.

[4] Delivered a lecture on “Magneto-seismology: A tool to probe the solar atmosphere” in the annual meeting of DST Institutions and Directors in January 2009 at ARCI, Hyderabad.

[5] A contributed talk delivered entitled “On the Multiple MHD Oscillations in the Solar Loops” in AOGS-2009 at Singapore in August 2009.

[6] An invited CFSA seminar titled “Multiwavelength Study of Recurrent Solar Flares from AR 10960” at the University of Warwick, UK in April 2010.

[7] SP2RC seminar titled “On Probing the Solar Atmosphere by Observed MHD Waves” in the School of Mathematics & Statistics, The University of Sheffield, UK in April 2010.

[8] An invited talk titled “MHD Seismology of Large- and Small-Scale Solar Structures by Observed Wave Harmonics in ST16 of AOGS-2010 at Hyderabad, India in July 2010.

[9] A contributed talk titled “On the Observations of Kink Instability as a Driver of the Recurrent Solar Flares in AR 10960” in ST02 of AOGS-2010 at Hyderabad, India in July 2010.

[10] An invited Seminar at Stenberg Astronomical Institute, Moscow University, Russia in November 2010.

[11] An invited M. Saha memorial lecture at Allahabad University in February 2011.

[12] A contributed talk titled “Transient Induced MHD Oscillations: A Tool to Probe the Solar Active Regions” in APSPM-2011, IIA, Bangalore, India in March 2011.

[13] The SP2RC seminar at School of Mathematics and Statistics, The University of Sheffield, United Kingdom on 14th April 2011.

[14] The seminar on “Solar Transient Phenomena” on 24th May 2011 at UMCS, Lublin, Poland.

[15] The invited talk entitled “Observations of Solar Flares and Associated Phenomena due to the Magnetic Instabilities” in International Space Plasma Symposium during 15-19 August 2011 at Institute of Space, Astrophysical & Plasma Sciences, NCKU, Tainan, Taiwan.

[16] A contributed talk entitled “Hinode/XRT Observations of a Pulse Driven X-ray Jet” in Workshop on Physics of the Solar Transition Region and Corona during 5-7 September 2011 at IUCAA, Pune, India.

[17] A contributed talk entitled “On the Study of Waves & Transients in the Solar Atmosphere” in Meeting of Science with Planned and Upcoming Solar Facilities in the Country during 2-3 November 2011 at Indian Institute of Astrophysics, Bangalore, India.

[18] A contributed talk entitled “Study of Waves & Plasma Dynamics in The Post Flare Loops” in Solar Radio Workshop during 23-25 November 2011 at NCRA-TIFR, Pune, India.

[19] A talk in the Indo-US Project Discussion Meeting at RAC, NCRA-TIFR, Ooty in January 2012.

[20] A contributed talk entitled “Observation and Simulation of Coronal Kink Instability”, by A.K. Srivastava, G.J.J. Botha, and Tony Arber; Session: Astrophysical Ejections Driven by Magnetic Reconnections; COSPAR-Maysore, Presentation Date & Time: Saturday, July 21, 2012, 10:30-11:00.

[21] “Observations and Modeling of the Pulse-driven Cool Plasma Ejecta in the Solar Atmosphere”, A.K. Srivastava, K. Murawski, Pradeep Kayshap; Session: Flows and Waves in the Solar Atmosphere in the SDO Era; COSPAR-Maysore, Date & Time: Monday, July 16, 2012, 13:05-13:25.

[22] “Observations of Magneto-acoustic Waves above the Intensity Enhanced Quiet Sun Regions from Hinode/SOT”, by A.K. Srivastava, R. Erdelyi, R.J. Morton, V. Fedun, B. Ravindra; Session: Coronal Heating; COSPAR-Mysore, Date & Time: Thursday, July 19, 2012, 18:00-18:20 (20 min).

[23] “On the Oscillatory and Non-oscillatory Loop Systems and Dynamical Processes during the X2.1 Solar Flare on 06 September 2011”, by A.K. Srivastava, M.J. Aschwanden, Pradeep Kayshap, W. Uddin, N. Gopalswamy, N.V. Nitta, P.K. Manoharan, D.P. Choudhari, Ramesh Chandra, Rajmal Jain, S. Yashiro, S. Akiyama, P Makela, Arun K. Awasthi, N.C. Joshi, V.C. Dwivedi, K. Mahalakshmi, E. Elamathi, Max Norris; Session : Solar Origin of the Heliospheric Magnetic Field; COSPAR-Mysore, Date & Time : Friday, July 20, 2012, 10:30-10:45.

[24] “MHD Seismology as a Tool to Diagnose the Coronae of Sun-like Stars”, by A.K. Srivastava, S. Lalitha, International Symposium on Solar Terrestrial Physics, 6-9 November 2012, IISER, Pune.

[25] A talk delivered entitled “First Observational Evidence of the Sausage-Pinch Instability in the Solar Corona”, In-house Meeting at ARIES, on 19 April 2012.

[26] An invited talk delivered entitled “MHD Seismology of Solar Corona Through the Observation of MHD Waves: Current and Future Aspects”, Indo-UK Seminar, January 2013.

[27] An invited talk delivered entitled “Study of MHD Waves and Instabilities in the Solar Atmosphere”, 2nd APSPM Meeting at Hanghou China; 24-26 October, 2013.

[28] A talk delivered entitled “Some Studies on Transients and Waves in the Solar Atmosphere”; October 2013.

[29] An invited talk delivered entitled “Study of the confined plasma dynamics in the solar atmosphere: Implications to the upcoming Solar Ultraviolet Imaging Telescope (SUIT) and Enhanced Visible Emission Line Coronagraph (EVELC) onboard Aditya-L1” in NLST-Aditya Meeting, IIA, Bangalore, 18-20 Nov 2013.

[30] An invited talk delivered in Indo-UK Seminar on “Diagnostics of the Magnetized Plasma using MHD Wave Harmonics”, ARIES, Nainital, 26-28 March 2014.

[31] A special talk delivered at UMCS, Lublin on “Transients and Waves in the Solar Atmosphere” on 7 October 2014.

[32] A special talk delivered at Sheffield University, entitled “On Synthesizingthe Spectral Signature of Alfvén Waves in Polar Corona” on 18 May 2015.

[33] A talk delivered in BUKS-2015 Meeting at Budapest, Hungary, entitled “Alfvén waves in coronal jets “on 25 May 2015.

[34] A talk delivered in Ruderman Honorary Meeting, Budapest, Hungary, entitled “Possible evidence of co-existing various MHD modes in magnetic pores” on 28 May 2015.

[35] A talk delivered at Debrecen Heliospheric Observatory, Hungary, entitled “On the synthesis of the spectral signature of transverse waves in the solar atmosphere” on 22 May 2015.

[36] A talk entitled “Coupling of Solar Atmosphere through Waves and Plasma Dynamics” in Aditya/SUIT Science Team Meeting, 16-17 December 2015.

[37] An invited talk entitled “Observations of Fast Sausage Waves in Solar Magnetic Structures and Diagnostics Capabilities” at IBUKS-2016, KU Leuven, Leuven, Belgium in June 2016.

[38] A seminar at UMCS Lublin, Poland in June 2016.

[39] A seminar at the University of Sheffield in November 2016.

[40] A contributed talk entitled “Coronal EUV Waves and Their Interaction with the Localized Magnetic Structures”, The 35th Annual Meeting of the Astronomical Society of India (ASI), 6-10 March 2017.

[41] A contributed talk entitled “Observations and Modelling of X6.9-class Flare Induced Vertical Kink Oscillations in a Large-Scale Plasma Curtain, 8th Coronal Loop Workshop, June 2017, Palermo, Italy.

[42] A contributed talk entitled “Peculiar EUV Waves and Their Diagnostics Capability”, AOGS 2017, ST-07, Singapore.

[43] An invited talk entitled “Role of Torsional Alfvén Waves as an Energy Source in the Solar Corona”, AOGS 2017, ST-12, Singapore.

[44] An invited talk entitled “High Frequency Torsional Alfvén as an Energy Source in the Solar Corona”, Solar Conference, Tbilisi, Georgia, September 2017.

[45] An invited talk titled “Pulsations in Solar and Stellar Flares and Refined MHD Seismology” in ISSI-BJ Science Group Meeting during October 2017, National Space Science Center, Beijing, China (as per invitation in ISSI-BJ team).

[46] An invited talk entitled "On understanding new heating candidates in Sun's corona" in the session Sun and the Solar System I in the XXXVI Astronomical Society of India Meeting at Osmania University, Hyderabad on 8th February 2018.

[47] A talk entitled "Recent Advances on Understanding Various Energy Sources of Localized Solar Chromosphere and Corona" at School of Mathematics and Physics, Queen's University Belfast, United Kingdom, 13 December 2018.

[48] A talk entitled "Some Novel Candidates for the Heating of The Localized Solar Corona" at Armagh Observatory, United Kingdom, 19th December 2018.

[49] An invited talk entitled "On the Discovery of New Energy Sources in the Sun's Atmosphere" in Advances in Physics from Small to Large Scales (APSLS-2019); Kumaun University, 14-16 March 2019.

[50] A special ARC seminar entitled "Localized Plasma Flows and Jets Coupling the Solar Atmosphere" at Astronomy Research Centre, School of Mathematics and Physics, Queen's University Belfast, United Kingdom, 05 May 2019.

[51] A talk entitled "On the Possible Drivers of the Localized Plasma Flows and Jets in the Solar Chromosphere" at NORTHUMBRIA UNIVERSITY ENGINEERING AND ENVIRONMENT, New Castle, United Kingdom, 06 May 2019.

[52] A talk entitled "Localized Dynamics and Energy Transport in the Solar Atmosphere" at UMCS, Lublin, Poland on 16th July 2019.

[53] An invited talk entitled "Novel Heating Candidates for the Localized Solar Corona: High Frequency Torsional Alfven Waves, Pseudo-shocks, and Forced Reconnection" in the ISSI-BJ Workshop on the Oscillatory Processes in the Solar and Stellar Corona, 15th October 2019, National Space Science Centre, Beijing, China.

[54] A contributed talk entitled "On Modeling the Response of Explosive Events in the Formation of Flowing Cool Loops as Observed by IRIS", 5th November 2019, IRIS-10, Bangalore, India.

[55] An invited talk entitled "Data-driven Magnetohydrodynamics (MHD): A novel tool to understand some basic mechanisms of the energy and mass transport in the Sun’s atmosphere", PLASMA-2019, Chennai, 4th December 2019.

[56] An invited talk entitled "Coupling Sun's Atmospheric Layers through Waves and Plasma Dynamics", One-day Workshop on Ground-based Instrumentation for Solar Astronomy, 13th Feb 2020, The 38th Annual Meeting of the Astronomical Society of India, IISER Tirupati.

[57] An invited award talk entitled "New Heating Candidates in the Sun's Atmosphere", The 38th Annual Meeting of the Astronomical Society of India, IISER Tirupati, 14-18 February 2020.

[58] An invited online talk entitled "On probing the solar and stellar atmospheres by magnetohydrodynamic (MHD) waves", Coronal Seismology (CS-2020), Warwick University, UK, 8-11 December 2020.

[59] An online invited talk entitled "Chromospheric Heating by MHD Waves and Instabilities", 13th January 2021, 2nd SUIT Science Meeting, IUCAA, Pune, 11-13 January 2021.

[60] An online invited talk entitled "Waves and Flows in the Sun's Atmosphere", in National Science Week at VIT Bhopal, 27th February 2021.

[61] A solicited invited online talk entitled "Instabilities in the Solar Chromosphere", IIA-50: Advances in Observations and Modelling of Solar Magnetism and Variability, 1 March 2021.

[62] An invited online special lecture entitled "The Mass and Energy Transport Processes Coupling the Sun's Atmosphere", in the High‐End Workshop on "Solar Activities and their Influences in the Heliosphere and Planetary Atmospheres" - 2021, NIT Calicut, 11 March 2021.

[63] An online invited special lecture entitled "The Dynamic Sun" at St. Xavier's College, Pallayamkottai, Tamilnadu, 16th August 2021.

[64] An invited online lecture titled "Magnetohydrodynamics: A tool to understand the dynamics of magnetized plasma", 22 November 2021, Refresher Course on "Advances in Mathematical & Physical Sciences", Dr. HS Gour University, Sagar, MP, India.

[65] An invited online special lecture titled “Grand Challenges in Understanding the Magnetically Active Sun”, IEC College of Engineering, Noida on 9th December 2021.

Some Exclusive Research Highlights:- 

[1]  On Modeling the Spicule-like Cool Jets Driven by Alfven Pulses [2022]:-  

Spicule-like jets are the recurrent plasma ejecta transporting energy and mass and coupling the different layers of the Sun's atmosphere. Their origin is still a mystery. There are several mechanisms proposed for their generation in the solar atmosphere. Quasi-periodic spicule-like cool jets are found to be driven by Alfvén pulses. The scientists from Indian Institute of Technology (Banaras Hindu University), Varanasi demonstrated using the magnetohydrodynamic (MHD) model that multiple velocity pulses between 1.5 and 2.0 Mm in the solar atmosphere trigger the initial transverse velocity perturbations. These pulses transfer energy non-linearly to the field aligned perturbations due to the ponderomotive force. This physical process further creates the magnetoacoustic shocks followed by quasi-periodic plasma motions in the solar atmosphere. The field aligned magnetoacoustic shocks move upward which subsequently cause quasi-periodic rise and fall of the chromospheric plasma into the overlying corona as a thin and cool spicule-like jets. The magnitude of the initial applied transverse velocity pulses are taken in the range of 50-90 km/s . These pulses are found to be strong enough to generate the spicule-like jets. They analyze the evolution, kinematics and energetics of these spicule-like jets, and find that the transported mass flux and kinetic energy density are substantial in the localized solar-corona. These mass motions generate in situ quasi-periodic oscillations on the scale of ≃ 4.0 min above the transition region. The scientific finding is published in peer reviewed international journal "Monthly Notices of the Royal Astronomical Society (MNRAS)" (IF- 5.287), Oxford University Press.

 

[2]  First Direct Detection of Forced Magnetic Reconnection in the Large-scale Sun's Corona (2019):-

While the Sun’s jumble of magnetic field lines are invisible, they nonetheless affect the material around them — a soup of ultra-hot charged particles known as plasma. The scientists from Department of Physics, IIT (BHU) were able to study this plasma using observations from NASA’s Solar Dynamics Observatory, or SDO, looking specifically at a wavelength of light showing particles heated 1-2 million kelvins (1.8-3.6 million F). The observations allowed them to directly detect the forced reconnection event for the first time in the solar corona which they model also— the Sun’s uppermost atmospheric layer. In a series of images taken over an hour, a prominence in the corona could be seen falling back into the photosphere. En route, the prominence ran into a snarl of magnetic field lines, causing them to reconnect in a distinct X shape in the frame-work of "the forced magnetic reconnection". The new scientific results were published in "The Astrophysical Journal (https://iopscience.iop.org/article/10.3847/1538-4357/ab4a0c).

 
A Popular featured article from NASA:- https://www.nasa.gov/feature/goddard/2019/nasa-s-sdo-sees-new-kind-of-magnetic-explosion-on-sun

  

[3]  Confined Pseudoshocks as an Energy Source for Active Region Corona (2018) :-

Scientists from Department of Physics, IIT (BHU) have discovered tadpole-shaped jets coming out of regions with intense magnetic fields on the Sun. Unlike those living on Earth, these “tadpoles” — formally called pseudo-shocks — are made entirely of plasma, the electrically conducting material made of charged particles that account for an estimated 99 percent of the observable universe. The discovery adds a new clue to one of the longest-standing mysteries in astrophysics. The Sun's active corona requires an energy flux of 10^3 W m-2 to compensate for radiative losses and to maintain its high temperature. Plasma moves in the corona through magnetic loops, which may be connected with the flows in and around sunspots. Global energizing processes (for example, reconnection) play an important part in heating the corona; however, energy and mass transport may also occur via shocks, waves or flows. A full picture and the influence of such localized events, which significantly couple with various layers of the solar upper atmosphere, is still not clear. Using the Interface Region Imaging Spectrograph temporal image data of C ii 1,330 Å, we observed the presence of pseudo-shocks around a sunspot. Unlike shocks, pseudo-shocks exhibit discontinuities only in the mass density. A two-fluid numerical simulation reproduces such confined pseudo-shocks with rarefied plasma regions lagging behind them. We find that these pseudo-shocks carry an energy of 10^3 W m-2, which is enough to locally power the inner corona and also generate bulk flows ( 10-5 kg m-2 s-1), contributing to the localized mass transport. If they are ubiquitous, such energized and bulky pseudo-shocks above active regions could provide an important contribution to the heating and mass transport in the overlying solar corona.

NATURE ASTRONOMY ARTICLE:-  https://www.nature.com/articles/s41550-018-0590-1

NASA's FEATURED ARTICLE:- https://www.nasa.gov/feature/goddard/2019/solar-tadpole-like-jets-seen-with-nasa-s-iris-add-new-clue-to-age-old-mystery

[4]  High-frequency Torsional Alfvén Waves as an Energy Source for Coronal Heating  (2017):

The existence of the Sun’s hot atmosphere and the solar wind acceleration continues to be an outstanding problem in solar-astrophysics. Although magnetohydrodynamic (MHD) modes and dissipation of magnetic energy contribute to heating and the mass cycle of the solar atmosphere, yet direct evidence of such processes often generates debate. Ground-based 1-m Swedish Solar Telescope (SST)/CRISP, Hα 6562.8 Å observations reveal, for the first time, the ubiquitous presence of high frequency (~12-42 mHz) torsional motions in thin spicular-type structures in the chromosphere. We detect numerous oscillating flux tubes on 10 June 2014 between 07:17 UT to 08:08 UT in a quiet-Sun field-of-view of 60” × 60” (1” = 725 km). Stringent numerical model shows that these observations resemble torsional Alfvén waves associated with high frequency drivers which contain a huge amount of energy (~105 W m-2) in the chromosphere. Even after partial reflection from the transition region, a significant amount of energy (~103 W m-2) is transferred onto the overlying corona. We find that oscillating tubes serve as substantial sources of Alfvén wave generation that provide sufficient Poynting flux not only to heat the corona but also to originate the supersonic solar wind.

Nature Sci Rep Paper:-  https://www.nature.com/articles/srep43147
 


 

[5]  The Prominence Driven Forced Reconnection and Dynamics of the Hot Plasma in the Sun's Corona (2021):

After the first direct observations of the forced magnetic reconnection in the Sun's corona in 2019, the scientists from Indian Institute of Technology (BHU), Varanasi, and their collaborators have again discovered an another new evidences of the prominence driven forced reconnection and associated dynamics of the hot plasma in the Sun's corona.

Paper Link:- https://ui.adsabs.harvard.edu/abs/2021ApJ...920...18S/abstract

 

Software and Tools:
[1] The Python Routines to Analyze  Simulation  Data Files  (Ref:- PLUTO .vtk files) :

This segment shares the developed python routines that can be utilized in analyzing the numerical time-series data files. Its various sub-sections and their descriptions are given as follows:

[2] EIS Hinode Spectroscopic Routines for Spectral Analysis : Click here for the routines

Some Links Related to Various Research Highlights :

Recent Novel Research Findings in Solar Physics from Our Group:

(i) "High-frequency Torsional Alfven Waves as An Energy Source for Coronal Heating" by Srivastava, A.K. et al., 2017, Nature Scientific Reports, 7, 43147.
See: NASA-ADS (Link1), Wikipedia: Alfven Waves (In the list of Historical Developments; Link2), Link3, Link4, Link5, Link6, Link7, Link8.

(ii) "Confined Pseudo-shocks as An Energy Source for The Active Solar Corona"by Srivastava, A.K. et al., 2018, Nature Astronomy, 2, 951. (https://www.nature.com/articles/s41550-018-0590-1).
See: Link1, Link2, Link3, Link4, Link5, Link6, Link7, Link8, Link9, Link10, Link11, Link 12
"News through Nature Asia"; "Research Blog through Nature Website";  "Research News at COS UTA, USA"

"Featured Article Coverage by NASA on the Discovery of Pseudo-Shocks (Published on 20th February 2019; Science Writer: Mara Johnson-Groh; https://www.nasa.gov/feature/goddard/2019/solar-tadpole-like-jets-seen-with-nasa-s-iris-add-new-clue-to-age-old-mystery)"

(iii) "Triggering The Birth Of New Cycle’s Sunspots By Solar Tsunami", Dikpati, M.; McIntosh, Scott W.; Chatterjee, Subhamoy; Banerjee, D.; Yellin-Bergo, Y. R., Srivastava, A.K., 2019, Nature Sci. Rep. (https://www.nature.com/articles/s41598-018-37939-z). Links: Coverage by "The Hindu@ 17th March 2019"
                                                      "Coverage by Anand Bazar (ABP News)".

(iv) The discovery of "The forced magnetic reconnection in the large-scale Sun's corona";  NASA featured article ("NASA's SDO sees a new kind of magnetic explosion on sun") and a "movie clip (1,75,343 view; > 1.4k likes)" depict this scientific findings.
Media Coverage: CNN, Daily-Mail (UK); Metro (UK); Express (UK); In-Short; US Today; Hindustan-Times; NASA-Twitter; Deccan-Herald; and many more.

(v) An exclusive direct observations of "The Forced Magnetic Reconnection" is also published recently by us in 2021 in The Astrophysical Journal.

13. SULIS: Solar cUbesats for Linked Imaging Spectropolarimetry (Dr Eamon Scullion (PI), Northumbria University UK); A proposed upcoming UK Space Mission to Observe the Sun and Heliosphere. I participate as one of the Academic Partners in SULIS to work with its scientific rationale and related developments.

14. Topical Issue: Data-driven MHD: Novel Applications to the Solar Atmosphere, in Frontiers in Astronomy & Space sciences; Editors: Dr. A.K. Srivastava (IIT BHU, India); Prof. R. Erdelyi (Sheffield University, UK); Prof. Stefaan Poedts (KU Leuven, Belgium); Prof. Peng-Fei Chen (Nanjing University China); Prof. Yihua Yan (National Astronomical Observatory, CAS, Beijing, China). Link of the Special Issue: https://www.frontiersin.org/research-topics/11278/data-driven-mhd-novel-applications-to-the-solar-atmosphere
Editorial of the Special Issue: https://www.frontiersin.org/articles/10.3389/fspas.2021.739264/full

15. Solar Physics@ IIT BHU joined as a non-EU member group in the ESPOS. https://espos.stream/about/

16. Laxminarayana & Nagalaxmi Modali Award 2019 of the Astronomical Society of India (ASI) at IISER Tirupati during its 38th Annual Meeting of the ASI. (https://astron-soc.in/modali_award) for the significant contribution in Astronomy & Astrophysics since last 10 years from the Indian Soil.

17. Served on an ISRO's National Level Study Committee titled "Aditya-L1 Space Weather Monitoring and Predictions Plan (ASWMP)". Aditya-L1 is a first national solar space mission to be flown at L1-point in space to continuously monitor Sun. 

18. (i)  Our recent review article in Space Science Reviews entitled "Coronal Heating by MHD Waves": -  Link of the Article

(ii)  A review article in Space Science Reviews entitled "Slow-Mode Magnetoacoustic Waves in Coronal Loops":- Link of the Article

(iii)  A review article titled "Chromospheric Heating by MHD Waves and Instabilities" by Srivastava et al.  in Journal of Geophysical Research (JGR) -- Space Physics in 2021: The Link of the Article.

(iv) A comprehensive review article on the "Quasi-Periodic Pulsations in Solar and Stellar Flares: A Review of Underpinning Physical Mechanisms and Their Predicted Observational Signatures" by I. V. Zimovets, J. A. McLaughlin, A. K. Srivastava, D. Y. Kolotkov, A. A. Kuznetsov, E. G. Kupriyanova, I.-H. Cho, A. R. Inglis, F. Reale, D. J. Pascoe, H. Tian, D. Yuan, D. Li & Q. M. Zhang, Space Science Reviews, 2021, 217, 66.  LINK OF THE ARTICLE . This review article is written by the members of an ISSI-BJ team of the scientists (http://www.issibj.ac.cn/News/201910/t20191025_221516.html).

(v) A comprehensive review article by ISSI-BJ international team on the "Kink Oscillations of Coronal Loops" by V.M. Nakariakov, S. A. Anfinogentov, P. Antolin, R. Jain, D. Y. Kolotkov, E. G. Kupriyanova, D. Li, N. Magyar, G. Nisticò, D. J. Pascoe, A. K. Srivastava, J. Terradas, S. Vashegani Farahani, G. Verth, D. Yuan , I. V. Zimovets, Space Science Reviews 2021. LINK OF THIS ARTICLE.

20. Contributed in the World's Largest 4m-Daniel K. Inouye Solar Telescope (DKIST) Critical Science Plan Paper published in "Solar Physics" in 2021:- Link of the Article.

21. Served on NASA Review Panel:  Reviewed the Proposals in Solar and Heliospheric Physics (2021).

22. Software/Routines Developed: - 

(a)  EIS Hinode Spectroscopic Routines for Spectral Analysis : Click here for the routines

23. Our recent new scientific finding on "The Forced Magnetic Reconnection" is listed as a 10 new learnings from the Solar Dynamics Observatory (SDO): Click here

24.  Received the Best Teacher Award-2021 constituted by IIT (BHU) on the auspicious Teacher's Day, 5th September 2021.

25. Lead on the Aditya-L1 SUIT (Solar Ultraviolet Imaging Telescope) Science Management Panel  (SSMP) on "Chromospheric Jets and Transient Brightening". 
      A.K. Srivastava; Tanmoy Samanta (NASA MSFC); Durgesh Tripathi (IUCAA Pune); Elena Khomenko (IAC, Spain); Ramit Bhattacharya (USO, PRL); Pradeep Kayshap        (VIT, Bhopal).

26. International Online Team "Effects of Coronal Heating/Cooling on MHD Waves": Link
 

[A] Details of the Major Works at the Institute

[1] Member, Curriculum Review Committee for UG and PG Courses; From 2 April 2019- till date.
Role - [1] To implement the modifications approved by the senate and/or competent authority; [2] To review and update the course structure to remove any difficulty reported by DUGC/DPGC of departments; [3] To suggest methods/modifications as considered desirable time to time by the Dean (Academic Affairs).

[2] Member, SENATE, IIT (BHU) from 1 April 2019 to 31 March 2021.
Role: - Participation in various Senate meetings and related discussions/implementations.

[3] Member, Regional Coordination Council; Region Academic Centre for Space, IIT (BHU); From 28th January 2021 to till date.
Role: - Regional ISRO Centre at IIT (BHU) for Processing the Research Projects.

[4] Member, A Joint Policy and Management Committee (JPMC); From 19th March 2021 to till date.
Role: - Works as per the MoU signed between Indian Space Research Organisation (ISRO) and IIT (BHU) this committee has been constituted. This is a committee having members both from IIT (BHU) and ISRO to finally evaluate the peer-reviewed ISRO grant proposals and related projects.

[5] Faculty Coordinator (Academic), Student Counseling Services (SCS); From 20 November 2011 to till date.
Role: - Working as a Faculty Coordinator, Academic, Student Counseling Services (SCS) at IIT (BHU). SCS has introduced a team of students and an effective network at the institute level and its various departments to organize academic workshops, problem solving sessions, counseling sessions for the needy UG students who were facing some academic problems. SCS academics has noticed far reaching valuable response, positive impact and response from UG students, and work for the wellness of the UG/PG students.

[6] Convener, Departmental Post-Graduate Committee (DPGC), Department of Physics, IIT (BHU); From 7th August 2018 to 31st July 2021.
Role: - Worked as a Convener, DPGC in the Department of Physics, IIT (BHU) during 2018-2020. Apart from working on all the academic tasks related to the PG students; contributed in making the new curriculum and 02-year M.Sc. Physics course in the Department. Stringent Ph.D. student selection process is employed with two step/committee interview process to select the promising Ph.D. students.

[7] Convener, Departmental Under Graduate Committee (DPGC), Department of Physics, IIT (BHU); From 9th August 2016 to 31st July 2018.
Role: - Worked as a Convener, DUGC in the Department of Physics, IIT (BHU) during 2016-2018.
Apart from working on all the academic tasks related to the UG students,  contributed in the new curriculum of the Department during that period. The new curriculum is now at a work for the IDD
Engineering Physics Students at IIT (BHU).

[8] Member, Department Faculty Affair Committee (DFAC), Physics Department, IIT (BHU); From 7th January 2020 to 31 December 2021.
Role: - Worked as a DFAC member in Department of Physics for approximately two years. Participated in making various decisions related to faculty affairs.

[9] Member, Institute Core Courses Monitoring Committee of IIT (BHU); From 2 November 2017 to till date.
Role: - To conduct all the semester examinations centrally by the office of Dean (Academic Affairs).

[10] Member, Central Instrument Facility Advisory committee, IIT (BHU)

[11] Member in the Academic Committee at ARIES, Nainital, 2009-2013.
Role: - Different academic endeavors; student selection; organized JEST examinations, etc.

[12] Various Committees in the Department of Physics, IIT (BHU)
Role:- Various tasks given by the Department to support its academic activities.

[B] Details of the Works of National and International Importance

[1] Member on ISRO's National Level Study Committee titled "Aditya-L1 Space Weather Monitoring and Predictions Plan (ASWMP)", 2020.

[2] Member on SUIT Science Management Panel (SSMP) for Aditya-L1 Space Mission, 2021.

[3] Lead the Aditya-L1 SUIT (Solar Ultraviolet Imaging Telescope) Science Management Panel (SSMP) on "Chromospheric Jets and Transient Brightening". Team Members: - A.K. Srivastava; Tanmoy Samanta (IIA, Bangalore); Durgesh Tripathi (IUCAA Pune); Elena Khomenko (IAC, Spain); Ramit Bhattacharya (USO, PRL); Pradeep Kayshap (VIT, Bhopal).

[4] Served on NASA Review Panel to Review the Proposals in Solar and Heliospheric Physics, 2021.

[5] Part of the World's Largest 4m-Daniel K. Inouye Solar Telescope (DKIST) Critical Science Plan Paper (document), which is published in "Solar Physics" in 2021. This led the path to further explore the novel science on various DKIST observations in coming future. (Link: - https://link.springer.com/article/10.1007%2Fs11207-021-01789-2).

[6] The part of European Solar Physics Online Seminar  (ESPS) with other EU institutions (https://espos.stream/about/)

[7] Work on various important international research networks in form of prestigious multi-lateral projects, e.g., Indo-US (IUSSTF), Indo-UK (UKIERI), BRICS, Royal Society International Exchange Scheme, etc.

[8] Lead and work with many distinguished colleagues across the globe on various cutting-edge scientific problems and related research.
Prof. K. Murawski (UMCS, Poland), Prof. M. Mathioudakis (QUB, Belfast, UK), Prof. R von-fay Siebenburgen (Sheffield University, UK), Dr. Eamon Scullion (Northumbria University, UK), Prof. P.-F. Chen (Nanjing University, China), Prof. Paul Cally (Monash University, Australia); Dr. P. Jelínek (University of South Bohemia, Czech Republic), Prof. J.-G. Doyle (Armagh Observatory, UK), Profs. T.-J. Wang and L. Ofman (NASA-GSFC, USA), Dr. J.J. González-Avilés (Instituto de Geofísica, Mexico), Prof. T.V. Zaqarashvili (University of Graz, Austria), Profs. Marcel Goossens and Tom Van Doorsselaere (KU Leuven, Belgium), Prof. S.-W. McIntosh (NCAS-High Altitude Observatory, Bulder, USA), Dr. S.K. Tiwari (Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, USA), Prof. Z. E Musielak ( The University of Texas, USA), Dr. I. V. Zimovets (Space Research Institute of the Russian Academy of Sciences (IKI), Moscow, Russia), Dr. Yuan Ding (Institute of Space Science and Applied Technology, Harbin Institute of Technology, China), and many other colleagues across the globe.

[9] Participating in the International Team "Effects of Coronal Heating/Cooling on MHD Waves" (https://warwick.ac.uk/fac/sci/physics/research/cfsa/people/kolotkov/webinar-coronal-heating-cooling-mhd-waves/).

[10] SULIS: Solar cUbesats for Linked Imaging Spectropolarimetry (Dr Eamon Scullion PI, Northumbria University UK) is a proposed UK Space Mission to Observe the Sun and Heliosphere. We have chosen as one of the Academic Partners in SULIS to work with its scientific rationale and related developments. See here: https://sulis.space/consortium/

[11] Played a key role in signing MoU between IIT (BHU) and Institute of Solar-Terrestrial Physics SB RAS, Russia in 2016.

 

[A] Theory Courses:

PHY-102: Introduction to Engineering Electromagnetics
PHY-411: Magnetohydrodynamics
PYM-524: Magnetohydrodynamics 
PYM-408: Electronics
PYM-404: Classical Electrodynamics
EP-202: Semiconductor Physics and Devices
EP-101: Practices of Engineering Physics
PHY-211: Solar and Space Plasma Physics
AP-5105: Fluids and Plasmas
PHY-412: Physics of the Sun and Its Atmosphere
AP-4205: Seismology & Helioseismology
PYM-521: Space and Solar Physics
               THERMODYNAMICS

[B] Laboratory Courses:

B.Tech Part One Optics Laboratory
B. Tech Part One Mechanics Laboratory
M.Sc. Electronics Laboratory