Classification of X-ray Sources in the XMM-Newton Serendipitous Source Catalog
Abstract
The Second XMM-Newton Serendipitous Source Catalog (2XMM) is the largest X-ray catalog ever produced, containing 262,902 unique sources. We study 4369 point sources from this catalog that have multiple pointings and have at least one detection with S/N>=20. For nearly one half of them we can obtain source types from the literature. We find that different types of sources are associated with different regions in the X-ray color diagram, different inter-observation variability, and different X-ray-to-optical and X-ray-to-IR flux ratios. Based on this, we have derived optimal criteria to obtain classifications of the unknown sources.
- Publication:
-
American Astronomical Society Meeting Abstracts #217
- Pub Date:
- January 2011
- Bibcode:
- 2011AAS...21743217L