116 citations · 389 across the 22 of their papers we have counts for
22 papers
Relative yield of thermal and nonthermal emission during weak flares observed by STIX during September 20-25, 2021
Arun Kumar Awasthi, Tomasz Mrozek, Sylwester Kołomański +3
The disparate nature of thermal-nonthermal energy partition during flares, particularly during weak flares, is still an open issue. Following the Neupert effect, quantifying the re…
Observational Characteristics of solar EUV waves
Ramesh Chandra, Pooja Devi, P. F. Chen +4
Extreme-ultraviolet (EUV) waves are one of the large-scale phenomena on the Sun. They are defined as large propagating fronts in the low corona with speeds ranging from a few tens…
Effects of supra-arcade downflows interacting with the post-flare arcade
Arun Kumar Awasthi, Rui Liu, Tingyu Gou
Supra-arcade downflows (SADs) are dark voids descending through plasma above the post-flare arcade. Although they are generally viewed as byproducts of flare reconnections in the c…
Extreme-Ultraviolet Wave and Accompanying Loop Oscillations
Pooja Devi, Ramesh Chandra, Arun Kumar Awasthi +2
We present the observations of an extreme-ultraviolet (EUV) wave, which originated from the active region (AR) NOAA 12887 on 28 October 2021 and its impact on neighbouring loops. T…
Investigation of two coronal mass ejections from circular ribbon source region: Origin, Sun-Earth propagation and Geo-effectiveness
Syed Ibrahim, Wahab Uddin, Bhuwan Joshi +2
In this article, we compare the properties of two coronal mass ejections (CMEs) that show similar source region characteristics but different evolutionary behavior in the later pha…
Spotless days and geomagnetic index as the predictors of solar cycle 25
Dipali S. Burud, Rajmal Jain, Arun K. Awasthi +6
We study the sunspot activity in relation to spotless days (SLDs) during the descending phase of solar cycle -- to predict the amplitude of sunspot cycle . For this pur…