Stars; X-ray emission; gamma Cas stars; Zenodo community stars-2021
Abstract :
[en] Nearly all types of massive stars are known to display X-ray emission at some level. Tremendous insight into this phenomenon has been gained thanks to the sensitivity of the current generation of X-ray satellites and X-ray observations are nowadays an integral part of multi-wavelength studies of massive stars and their stellar winds. In this contribution, we review the overall picture and highlight a few recent results related to the temporal modulation of the X-ray emission of single massive stars, the orbital modulation of the emission due to colliding winds in massive binary systems, and the properties of the enigmatic gamma Cas stars, Be stars that display a very hard and strong X-ray emission.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Rauw, Grégor ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR) ; Liege University, Belgium
Language :
English
Title :
X-ray emission from massive stars: lessons learned and remaining mysteries
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE] BELSPO - Belgian Science Policy Office, PRODEX funds [BE]
Funding number :
T; 0192; 19
Funding text :
This work was supported by the Fonds National de la Recherche Scientifique - FNRS, notably under grant no T.0192.19. We thank the European Space Agency (ESA) and the Belgian Federal Science Policy Office (BELSPO) for their support in the framework of the PRODEX Programme (contracts XMaS and HErMeS).
