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

TL;DR

This paper evaluates Simbol-X's ability to detect non-thermal emission in stellar flares, demonstrating it can identify such emissions in bright nearby stars and distinguish them from thermal emissions.

Contribution

It provides an analysis of Simbol-X's capability to detect non-thermal stellar flare emissions and establishes detection thresholds for future observations.

Findings

Non-thermal emission detectable with ~20 counts in 20-80 keV band

Simbol-X can detect non-thermal emission from bright nearby stars

Potential to test thermal vs. non-thermal emission relations

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.