Variable X-ray sources in the 3XMM catalogue
Abstract
The current version of the XMM-Newton serendipitous source catalogue, 3XMM-DR7, was released on 1st June 2017. It contains 727790 X-ray detections, of which 499266 are unique sources, detected as many as 59 times. This catalogue produced by the Survey Science Centre (SSC) provides a variety of information for each detection, the position and its associated error, a measure of the reliability, as well as count rates and fluxes in 7 different bands, 4 hardness ratios, the probability of the source being constant over an observation and a cross correlation of the detection with more than 200 other catalogues, providing possible multi-wavelength identification. This elaborate catalogue can be searched for sources varying over one observation of up to 36 hours in duration or spanning as much as 16 years in time. We present the 3XMM catalogue and describe some of the rare and interesting objects discovered within it, including accreting stellar mass compact objects, intermediate mass black holes, tidal disruption events and extreme AGN.
- Publication:
-
American Astronomical Society Meeting Abstracts #231
- Pub Date:
- January 2018
- Bibcode:
- 2018AAS...23122302W