Recent studies of stellar flares across the electromagnetic spectrum

Abstract

In recent years, the detection of potentially habitable planets around sun-like stars and red dwarf stars reached a new peak due to missions like Kepler/K2 and TESS. However, the true habitability of these and other candidates depends strongly on the activity of their parent stars. And flares, together with CMEs, are the most explosive manifestations of stellar activity.

Despite the fact that stellar flares can be orders of magnitude more energetic than their solar counterparts, they are considered to be similar in origin - from magnetic reconnection followed by a considerable release of energy. This, in turn, leads to bright and (relatively) short radiation throughout the electromagnetic spectrum - from X-rays to radio wavelengths. Here I will attempt a review of the most interesting recent statistical results in the study of stellar flares.