Astronomy and Astrophysics – Astronomy
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.8406t&link_type=abstract
American Astronomical Society, 200th AAS Meeting, #84.06; Bulletin of the American Astronomical Society, Vol. 34, p.785
Astronomy and Astrophysics
Astronomy
Scientific paper
We present the results from XMM-Newton survey of the Andromeda Galaxy (M31). We discovered more than a hundred of new X-ray sources; some of them appeared to be bright X-ray transients. The unprecedented sensitivity of XMM-Newton allowed a detailed study of spectral properties and variability of new and previously known X-ray sources with luminosities above ~ 5 x 1036 ergs s-1. We review the X-ray properties of various classes of objects (X-ray transients, globular cluster sources, supernova remnants (SNR) and supersoft sources) detected in our survey. We present X-ray source luminosity distributions in the bulge and disk regions of M31. The disk in general is clearly lacking the brighter sources which dominate X-ray emission from the bulge. This is the first convincing evidence for a difference between bulge and disk X-ray populations in M31. Our results are in good qualitative agreement with the luminosity distributions for low- and high-mass X-ray binaries in our Galaxy.
Borozdin Konstantin N.
Cordova France A.
Mason Keith O.
Osborne Julian Paul
Priedhorsky William C.
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