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Abhishek Kumar Srivastava is an Indian Solar physicist currently working as Associate Professor, Department of Physics, IIT (BHU).
Abhishek Kumar Srivastava | |
|---|---|
 Abhishek Kumar Srivastava | |
| Born | Varanasi, Varanasi, Uttar Pradesh, India |
| Citizenship | India (1982–present) |
| Alma mater | Indian Institute of Technology (BHU) (IIT BHU), Indian Institute of Technology (BHU) |
| Years active | 2005 - Present |
| Organization | Indian Institute of Technology (BHU) |
| Known for | Exceptional contributions in the field of solar eruptions and their space weather consequences |
| Awards | Best Teacher Award 2019; Laxminarayana & Nagalaxmi Modali Award 2019, ; others |
| Scientific career | |
| Fields | Solar Physics, Solar Terrestrial Physics, |
| Institutions | IIT BHU
Aryabhatta Research Institute of Observational Sciences Armagh Observatory |
| Doctoral advisor | Dr B N Dwevedi |
| Website | https://www.iitbhu.ac.in/dept/phy/people/asrivastavaapp |
Background and scientific career
edit[Srivastava is a faculty member in the Faculty of Physics at the Indian Institute of Technology (BHU), India, specializing in Astrophysics/Solar-Physics.[1][2]
Srivastava completed his Ph.D. in 2006 from the Department of Applied Physics, ITBHU, with a thesis on "MHD Waves in Coronal Holes and Line Diagnostics of Coronal Loops" supervised by Prof. B.N. Dwivedi[3]. His research mainly focuses on multi-wavelength observations[4],[5] and modeling of transient events (e.g., spicules, various jets, reconnection events)[6], [7]eruptive phenomena (e.g., solar flares and associated plasma processes)[8], and MHD waves & seismology in the Sun's atmosphere using recent space- and ground-based instruments/observatories[9] (e.g., instruments onboard Hinode, STEREO, SDO, IRIS, SST, etc.) as well as theoretical modeling, [10].
Srivastava also studies large-scale active region dynamics to understand the role of instabilities and flux-rope evolution in flare and CME eruptions[11], [12] crucial for space weather predictions[13]. Additionally, he is involved in research on stellar flares and MHD seismology of stellar coronae of Sun-like stars. Recently, he has focused on studying various kinds of MHD waves in 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[14].
His research also includes studying solar jets and spicules, as well as modeling these spectacular ejecta to understand their triggering mechanisms and their role in mass and energy transport in the solar atmosphere. The recent observations of MHD waves and their role in accelerating/heating transient phenomena and diagnosing the solar atmosphere are now at the forefront of solar physics research and form a major theme of his work[15]. For several years, he has been devoted to understanding the physical processes that can heat the Sun's corona and chromosphere (e.g., waves, instabilities, forced magnetic reconnection, shocks/pseudo-shocks)[16].
References
edit- ^ https://www.iitbhu.ac.in/app/aks.htm
- ^ https://economictimes.indiatimes.com/news/science/why-aditya-l1-the-strange-case-of-the-great-canadian-blackout/articleshow/103302604.cms?from=mdr
- ^ Srivastava, A. K., & Dwivedi, B. N. (2006). Magnetosonic waveguide model of solar wind flow tubes. Journal of Astrophysics and Astronomy, 27, 353-359.
- ^ Srivastava, A. K., & Murawski, K. (2011). Observations of post-flare plasma dynamics during an M1. 0 flare in AR11093 by the Solar Dynamics Observatory/Atmospheric Imaging Assembly. The Astrophysical Journal, 744(2), 173.
- ^ https://scitechdaily.com/scientists-discover-solar-tadpole-like-jets-coming-out-of-the-sun/
- ^ Kayshap, P., Srivastava, A. K., & Murawski, K. (2012). The kinematics and plasma properties of a solar surge triggered by chromospheric activity in AR11271. The Astrophysical Journal, 763(1), 24.
- ^ Uddin, W., Schmieder, B., Chandra, R., Srivastava, A. K., Kumar, P., & Bisht, S. (2012). Observations of multiple surges associated with magnetic activities in AR 10484 on 2003 October 25. The Astrophysical Journal, 752(1), 70.
- ^ Gopalswamy, N., Xie, H., Mäkelä, P., Yashiro, S., Akiyama, S., Uddin, W., ... & Choudhary, D. P. (2013). Height of shock formation in the solar corona inferred from observations of type II radio bursts and coronal mass ejections. Advances in Space Research, 51(11), 1981-1989.
- ^ Srivastava, A. K., Erdélyi, R., Poedts, S., Chen, P. F., & Yan, Y. (2021). Data-Driven MHD-Novel Applications to the Solar Atmosphere. Frontiers in Astronomy and Space Sciences, 8, 739264.
- ^ https://www.iau.org/administration/membership/individual/17001/
- ^ Didel, S., Pandey, J. C., Srivastava, A. K., & Singh, G. (2024). Study of the energetic X-ray superflares from the active fast rotator AB doradus. Monthly Notices of the Royal Astronomical Society, 527(2), 1705-1721.
- ^ https://communities.springernature.com/posts/confined-pseudo-shocks-the-new-energy-source-in-the-sun-s-corona
- ^ Mondal, S., Srivastava, A. K., Pontin, D. I., Yuan, D., & Priest, E. R. (2024). 2.5 D Magnetohydrodynamic Simulation of the Formation and Evolution of Plasmoids in Coronal Current Sheets. The Astrophysical Journal, 963(2), 139.
- ^ Srivastava, A. K., Singh, A., Singh, B., Murawski, K., Zaqarashvili, T. V., Yuan, D., ... & Dwivedi, B. N. (2024). Alfvén pulse driven spicule-like jets in the presence of thermal conduction and ion-neutral collision in two-fluid regime. Philosophical Transactions of the Royal Society A, 382(2272), 20230220.
- ^ Singh, B., Srivastava, A. K., Sharma, K., Mishra, S. K., & Dwivedi, B. N. (2022). Quasi-periodic spicule-like cool jets driven by Alfvén pulses. Monthly Notices of the Royal Astronomical Society, 511(3), 4134-4146.
- ^ https://www.iau.org/administration/membership/individual/17001/