XMM-Newton Survey of X-ray Binaries in M31

Details XMM-Newton Survey of X-ray Binaries in M31 XMM-Newton Survey of X-ray Binaries in M31

Nov 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002xrb..confe..45t&link_type=abstract

X-ray Binaries in the Chandra and XMM-Newton Era (with an emphasis on Targets of Opportunity), Abstracts of the conference held

Physics

Extra-Galactic X-Ray Binaries

Scientific paper

We present the results from XMM-Newton survey of M31. Nearly 400 out of total 600 X-ray sources detected in the survey can be classified as X-ray binary candidates. Unprecedented sensitivity of XMM-Newton allowed a detailed study of spectral properties and variability of new and previously known X-ray emitting binary systems. Correlation between the spectral properties and level of X-ray flux has been found for several sources. A short-term periodic variability of two X-ray sources (a supersoft transient XMMU J004319.4+411759 and globular cluster candidate Bo 158) has been discovered. We present luminosity functions of X-ray binaries in the bulge and disk regions of M31, providing the first convincing evidence for the difference between these source populations. We discuss individual and group properties of X-ray binaries of various classes (X-ray transients, globular cluster sources, supersoft sources) detected in our survey.

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