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An XMM-Newton survey of the Local Group galaxy M 33 – variability of the detected sources
Astronomy and Astrophysics
We present an analysis of the individual observations of a deep XMM-Newton survey of the Local Group spiral galaxy M 33. We detected a total of 350 sources with fluxes (in the 0.2-4.5 keV energy band) in the range 6.7 × 10 −16 −1.5 × 10 −11 erg s −1 . This comprehensive study considers flux variability, spectral characteristics, and classification of the detected objects. Thirty-nine objects in our catalogue are new sources, while 311 were already detected in a previous analysis of most of thedoi:10.1051/0004-6361:20053745 fatcat:7ieaei3jvnhp7cwmq55dp4te6u