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X-RAYS OF STELLAR CORONAE WITH CHANDRA AND XMM-NEWTON Flares and Elemental Composition in Stellar Atmospheres
 

Summary: 1
X-RAYS OF STELLAR CORONAE WITH CHANDRA AND XMM-NEWTON
Flares and Elemental Composition in Stellar Atmospheres
Marc Audard1
Columbia Astrophysics Laboratory, Columbia University, Mail code 5247, 550 West 120th Street, New York, NY 10027, USA
Abstract
Observations of magnetically active stars with Chan-
dra and XMM-Newton have deepened our knowledge of
the physics of the atmospheres in late-type stars. In this
review paper, I discuss two topics that have profited sig-
nificantly from Chandra and XMM-Newton. Of particular
interest, studies of the elemental composition of stellar
coronae have taken advantage of the high spectral resolu-
tion available with the grating instruments on board these
satellites. I summarize the status of our knowledge and
discuss the elemental composition in a variety of stellar
coronae. I also focus on the topic of flares in stellar coro-
nae, and review the contributions made by XMM-Newton
and Chandra to X-ray and multi-wavelength studies.
Key words: Stars: abundances ­ Stars: activity ­ Stars:

  

Source: Audard, Marc - INTEGRAL Science Data Centre & Observatory of Geneva, Université de Genève

 

Collections: Physics