Место издания:Главная (Пулковская) астрономическая обсерватория РАН Санкт-Петербург
Первая страница:25
Последняя страница:28
Аннотация:We carried out a search for flares from an analysis of light curves of 12 active G, K and M dwarfs, compiled from the ground-based photometric databases for 2000-2020. Events of low-amplitude brightenings (up to 0.25m), which could be possible flares, were revealed for 11 stars. The largest number of such brightenings was found in K dwarfs. Increases in V-magnitudes by 0.5m or more, i.e. possible high-amplitude flares were rarely observed. They were found for two late M dwarfs and for one G star, BE Cet. Most of the probable flares are short-lived, 0.5-2 minutes, but there are a few flares with the duration of tens of minutes or more than an hour.