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arXiv · astro-ph/0212446

Deep XMM-Newton survey of M33

W. Pietsch·M. Ehle·F. Haberl·Z. Misanovic·G. Trinchieri
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Abstract

In an XMM-Newton raster observation of the bright local group spiral galaxy M33 we study the population of X-ray sources (X-ray binaries, supernova remnants, super-shells) down to a 0.5-10 keV luminosity of 10^35 erg s^-1 -- more than a factor of 10 deeper than earlier ROSAT observations. EPIC spectra and hardness ratios are used to distinguish between different source classes. We confirmed the 3.45 d orbital light curve of the X-ray binary M33 X7, detected a transient super-soft source in M33, and searched for short term variability of the brighter sources. We characterize the diffuse X-ray component that is correlated with the inner disk and spiral arms. We will compare the results with other nearby galaxies.

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W. Pietsch, M. Ehle, F. Haberl, Z. Misanovic, G. Trinchieri. 2002-12-19. Deep XMM-Newton survey of M33. https://doi.org/10.1002/asna.200310022

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