Simbol-X capability of detecting the non-thermal emission of stellar flares

Abstract

We investigate the capability of detecting, with Simbol-X, non-thermal emission during stellar flares, and distinguishing it from hot thermal emission. We find that flare non-thermal emission is detectable when at least ~20 cts are detected with the CZT detector in the 20-80 keV band. Therefore Simbol-X will detect the non-thermal emission from some of the X-ray brightest nearby stars, whether the thermal vs. non-thermal relation, derived for solar flares, holds.

2 pages, 2 postscript figures, proceedings of the workshop "Simbol-X: the hard X-ray universe in focus", to be published in "Memorie of the Italian Astronomical Society"