Young stellar objects from soft to hard X-rays

TL;DR

This paper discusses the potential of hard X-ray observations to study magnetic energy release and plasma heating in young stellar objects, which are difficult to observe due to absorption, impacting their environments.

Contribution

It highlights the importance of hard X-ray observations with future devices like Simbol-X for advancing understanding of magnetic processes in young stellar objects.

Findings

Evidence for violent magnetic energy release in young stellar objects

Potential impact on circumstellar disk heating and ionization

Future hard X-ray observations can provide detailed insights

Abstract

Magnetically active stars are the sites of efficient particle acceleration and plasma heating, processes that have been studied in detail in the solar corona. Investigation of such processes in young stellar objects is much more challenging due to various absorption processes. There is, however, evidence for violent magnetic energy release in very young stellar objects. The impact on young stellar environments (e.g., circumstellar disk heating and ionization, operation of chemical networks, photoevaporation) may be substantial. Hard X-ray devices like those carried on Simbol-X will establish a basis for detailed studies of these processes.