The X-ray Source Population of M33 as seen by XMM-Newton
Abstract
We present results from a deep XMM-Newton survey of M33 consisting of 8 pointings extending beyond the D25 isophote sensitive to L(0.2-4.5 keV) > 4e+34 erg/s. The large area coupled with the XMM soft response complement the deep Chandra Survey of M33. Cross-correlation of the surveys allows us to identify variable sources and previously undetected soft sources. Our coverage reveals many new sources including at least one previously unclassified SNR. The radial coverage provides high-quality background statistics, including a radial density distribution of sources that suggests roughly 15% (~60) of sources with inferred L > 3.6e+35 erg/s are in M33. Our background-corrected log(N)--log(S) reveals a relatively flat power law index (0.3-0.7) consistent with a substantial population of HMXBs.
- Publication:
-
X-ray View of Galaxy Ecosystems
- Pub Date:
- August 2014
- Bibcode:
- 2014xvge.confE..11G