Deep XMM survey of M33
Abstract
In an XMM 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 \oergs{35} - 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.
- Publication:
-
Astronomische Nachrichten
- Pub Date:
- 2003
- DOI:
- 10.1002/asna.200310022
- arXiv:
- arXiv:astro-ph/0212446
- Bibcode:
- 2003AN....324...85P
- Keywords:
-
- galaxies: individual (M33);
- galaxies: ISM;
- galaxies: spiral;
- X-rays;
- Astrophysics
- E-Print:
- Proceedings of the "X-ray surveys, in the light of the new observatories" workshop, Astronomische Nachrichten, in the press (4 pages, 5 figures, uses an.cls)