A deep optical image of M 31 (Burwitz, priv. comm.) overplotted with the XMM-Newton fields of the survey. The area covered by individual EPIC observations is approximated by circles with 14 arcmin radius. Fields observed in the “Deep XMM-Newton Survey of M 31′′ are marked with thicker lines. For presentation purposes, the ToO observation and the observations of RX J0042.6+4115 are omitted.
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