31 citations · 55 across the 8 of their papers we have counts for
8 papers
Search for a Signature of Twist-Removal in the Magnetic Field of Sunspots in Relation with Major Flares
Olga Burtseva, Sanjay Gosain, Alexei A. Pevtsov
We investigate the restructuring of the magnetic field in sunspots associated with two flares: the X6.5 flare on 6 December 2006 and the X2.2 flare on 15 February 2011. The observe…
Hard X-ray Emission During Flares and Photospheric Field Changes
O. Burtseva, J. C. Martínez-Oliveros, G. J. D. Petrie +1
We study the correlation between abrupt permanent changes of magnetic field during X-class flares observed by the GONG and HMI instruments, and the hard X-ray (HXR) emission observ…
Temporal Variations of High-Degree Solar p-Modes using Ring-Diagram Analysis
Olga Burtseva, Sushant Tripathy, Richard Bogart +4
We study temporal variations in the amplitudes and widths of high-degree acoustic modes by applying the ring-diagram technique to the GONG+, MDI and HMI Dopplergrams during the dec…
Magnetic Flux Change and Cancellation Associated with X-class and M-class Flares
Olga Burtseva, Gordon Petrie
We perform a statistical study of permanent changes in longitudinal fields associated with solar flares by tracking magnetic features. The YAFTA feature tracking algorithm is appli…
Temporal Variations of High-Degree Solar p-Modes from GONG and MDI
Olga Burtseva, S. C. Tripathy, R. Howe +4
We study temporal variations in the amplitudes and widths of high-degree acoustic modes in the quiet and active Sun by applying ring-diagram technique to the GONG+ and MDI Dopplerg…
What Solar Oscillation Tell us About the Solar Minimum
Kiran Jain, S. C. Tripathy, O. Burtseva +6
The availability of continuous helioseismic data for two consecutive solar minima has provided a unique opportunity to study the changes in the solar interior that might have led t…