Ashok Ambastha
Ashok Ambastha
Former Senior Professor, Physical Research Laboratory
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Cited by
Cited by
Evolutionary and flare-associated magnetic shear variations observed in a complex, flare-productive active region
A Ambastha, MJ Hagyard, EA West
Solar physics 148, 277-299, 1993
On the role of rotating sunspots in the activity of solar active region NOAA 11158
P Vemareddy, A Ambastha, RA Maurya
The Astrophysical Journal 761 (1), 60, 2012
Velocity and magnetic transients driven by the X2. 2 white-light flare of 2011 February 15 in NOAA 11158
RA Maurya, P Vemareddy, A Ambastha
The Astrophysical Journal 747 (2), 134, 2012
On the injection of helicity by the shearing motion of fluxes in relation to flares and coronal mass ejections
P Vemareddy, A Ambastha, RA Maurya, J Chae
The Astrophysical Journal 761 (2), 86, 2012
Flare-Induced Excitation of Solar p modes
A Ambastha, S Basu, HM Antia
Solar Physics 218, 151-172, 2003
Emerging flux and X-class flares in NOAA 6555
DP Choudhary, A Ambastha, G Ai
Solar Physics 179, 133-140, 1998
Filament eruption in NOAA 11093 leading to a two-ribbon M1. 0 class flare and CME
P Vemareddy, RA Maurya, A Ambastha
Solar Physics 277, 337-354, 2012
Magnetic field gradient and flare: study of a small flare in NOAA 8038
SK Mathew, A Ambastha
Solar Physics 197, 75-84, 2000
Evolution of helically twisted prominence structures of March 11, 1979
N Srivastava, A Ambastha, A Bhatnagar
Solar physics 133, 339-355, 1991
The magnetic evolution of AR 6555 which led to two impulsive, relatively compact, X-type flares
JM Fontenla, A Ambastha, B Kalman, G Csepura
The Astrophysical Journal 440 (NAS 1.15: 111851), 1995
Transient magnetic and doppler features related to the white-light flares in NOAA 10486
RA Maurya, A Ambastha
Solar Physics 258, 31-52, 2009
Fabry-Perot filter based solar video magnetograph
SK Mathew, A Bhatnagar, CD Prasad, A Ambastha
Astronomy and Astrophysics Supplement Series 133 (2), 285-292, 1998
Heliophysical Processes
SS Hasan
Springer, 2010
Sunspot proper motions in active region NOAA 2372 and its flare activity during SMY period of 1980 April 4–13
A Ambastha, A Bhatnagar
Journal of Astrophysics and Astronomy 9, 137-154, 1988
A technique for automated determination of flare ribbon separation and energy release
RA Maurya, A Ambastha
Solar Physics 262, 337-353, 2010
Variations in p-mode parameters with changing onset time of a large flare
RA Maurya, A Ambastha, SC Tripathy
The Astrophysical Journal 706 (2), L235, 2009
Kinetic and magnetic helicities in solar active regions
RA Maurya, A Ambastha, V Reddy
Journal of Physics: Conference Series 271 (1), 012003, 2011
Possibility of excitation of low-ℓ p-modes by energetic solar transients
A Ambastha, HM Antia
Solar Physics 238, 219-230, 2006
Solar P-mode characteristics associated with superactive-regions observed during Oct-Nov 2003
A Ambastha, S Basu, HM Antia, RS Bogart
Proceedings of the SOHO 14/GONG 2004 Workshop on Helio-and Asteroseismology …, 2004
On the global density waves in self-gravitating flat disks
A Ambastha, RK Varma
The Astrophysical Journal 264 (1), 413-426, 1983
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