40 citations · 83 across the 7 of their papers we have counts for
7 papers
Confinedness of an X3.1 class solar flare occurred in NOAA 12192: Analysis from multi-instruments observations
N. Vasantharaju, F. Zuccarello, F. Ferrente +1
The non-association of coronal mass ejections with high energetic flares is sparse. For this reason, the magnetic conditions required for the confinedness of major flares is a topi…
Eruption of EUV Hot-Channel near Solar Limb and Associated Moving Type-IV Radio Burst
P. Vemareddy, P. Démoulin, K. Sasikumar Raja +3
Using the observations from Solar Dynamics Observatory, we study an eruption of a hot-channel flux rope (FR) near the solar-limb on February 9, 2015. The pre-eruptive structure is…
Magnetic imprints of eruptive and non-eruptive Solar flares as observed by Solar Dynamics Observatory
N. Vasantharaju, P. Vemareddy, B. Ravindra +1
The abrupt and permanent changes of photospheric magnetic field in the localized regions of active regions during solar flares called magnetic imprints (MIs), have been observed fo…
Finding the critical decay index in solar prominence eruptions
N. Vasantharaju, P. Vemareddy, B. Ravindra +1
The background field is assumed to play prime role in the erupting structures like prominences. In the flux rope models, the critical decay index () is a measure of the rate a…
Formation and eruption of sigmoidal structure from a weak field region of NOAA 11942
N. Vasantharaju, P. Vemareddy, B. Ravindra +1
Using observations from Solar Dynamics Observatory, we studied an interesting example of a sigmoid formation and eruption from small-scale flux canceling regions of active region (…
Statistical study of magnetic non-potential measures in confined and eruptive flares
N. Vasantharaju, P. Vemareddy, B. Ravindra +1
Using the HMI/SDO vector magnetic field observations, we studied the relation of degree of magnetic non-potentiality with the observed flare/CME in active regions. From a sample of…
Temporal offsets among Solar activity indicators
K. B. Ramesh, N Vasantharaju
Temporal offsets between the time series of solar activity indicators provide important clues regarding the physical processes responsible for the cyclic variability in the solar a…