AAS 205th Meeting, 9-13 January 2005
Session 155 X-ray Sources
Oral, Thursday, January 13, 2005, 10:00-11:30am, Golden Ballroom

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[155.03] X-ray Source Populations in M31

S. Trudolyubov (IGPP, University of California, Riverside), W. Priedhorsky (Los Alamos National Laboratory)

We review the properties of the X-ray emitting populations detected in the XMM-Newton major axis survey of M31. We detected a total of 730 X-ray sources with 0.3- 10 keV luminosities above ~ 8x1034 ergs s-1 at the distance of 760 kpc. Combining the results of X-ray analysis (X-ray spectra, colors and variability) with available data at other wavelengths, we classify a significant fraction of X-ray sources as X-ray binaries, globular cluster sources, SNR, background radio galaxies, AGN and foreground objects. We present X-ray source spatial and luminosity distributions, and estimate contribution of M31 sources to the total source counts in the XMM fields. Finally, we compare X-ray source population found in M31, to the source populations detected in the normal galaxies of different morphological type.

This work was supported in part by NASA grant NAG5-12390.

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© 2004. The American Astronomical Society.