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- General X-ray properties of hot, massive stars
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General X-ray properties of hot, massive stars
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Abstract
The recent X-ray observatories have not yet provided a large survey comparable (in sky coverage) to that based upon the ROSAT All-Sky Survey (RASS). However, two limited surveys exist: the 2XMM catalog for XMM-Newton (294 OB stars detected) and the Carina large-scale survey from Chandra (129 OB stars detected). Medium-resolution (CCD) spectra were analyzed and led to new results on the relationship between the X-ray luminosity and the bolometric luminosity, as well as on the typical properties (plasma temperature, variability) of these objects. This contribution thus presents the results of the first high-sensitivity investigation of the overall high-energy properties of a sizeable sample of hot stars.
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About: Yaël Nazé
GAPHE, Dépt AGO, ULg, Allée du 6 Août 17, Bât B5C, B4000-Liège, Belgium