The XMM-Newton Serendipitous Survey. V. The Second XMM-Newton Serendipitous Source Catalogue

Details The XMM-Newton Serendipitous Survey. V. The Second XMM-Newton Serendipitous Source Catalogue The XMM-Newton Serendipitous Survey. V. The Second XMM-Newton Serendipitous Source Catalogue

2008-07-07

arxiv.org/abs/0807.1067v2

Astronomy and Astrophysics

Astrophysics

27 pages (plus 8 pages appendices), 15 figures. Minor changes following referee's comments; now accepted for publication in A

Scientific paper

10.1051/0004-6361:200810534

Aims: Pointed observations with XMM-Newton provide the basis for creating catalogues of X-ray sources detected serendipitously in each field. This paper describes the creation and characteristics of the 2XMM catalogue. Methods: The 2XMM catalogue has been compiled from a new processing of the XMM-Newton EPIC camera data. The main features of the processing pipeline are described in detail. Results: The catalogue, the largest ever made at X-ray wavelengths, contains 246,897 detections drawn from 3491 public XMM-Newton observations over a 7-year interval, which relate to 191,870 unique sources. The catalogue fields cover a sky area of more than 500 sq.deg. The non-overlapping sky area is ~360 sq.deg. (~1% of the sky) as many regions of the sky are observed more than once by XMM-Newton. The catalogue probes a large sky area at the flux limit where the bulk of the objects that contribute to the X-ray background lie and provides a major resource for generating large, well-defined X-ray selected source samples, studying the X-ray source population and identifying rare object types. The main characteristics of the catalogue are presented, including its photometric and astrometric properties .

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