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OMCat: Catalog of Serendipitous Sources Detected with the XMM-Newton Optical Monitor

Snowden, Steven L.; Kuntz, K. D.; Mushotzky, Richard F. +2 more

The Optical Monitor Catalog of serendipitous sources (OMCat) contains entries for every source detected in the publicly available XMM-Newton Optical Monitor (OM) images taken in either the imaging or “fast” modes. Since the OM is coaligned and records data simultaneously with the X-ray telescopes on XMM-Newton, it typically produces images in one …