The 2XMM Catalogue And Early Science

Mathematics – Probability

Scientific paper

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Scientific paper

The XMM-Newton Survey Science Centre will soon release the second XMM-Newton serendipitous source catalogue, 2XMM. This will be the largest X-ray source catalogue ever made, including more than 150,000 objects from over 3000 XMM-Newton observations since launch and covering a total sky area of approximately 500 sq.deg. The typical flux limit of the survey is 10-14 erg cm-2 s-1 (0.2-12 keV), well matched to the dominant source population of the cosmic X-ray background emission (CXRB). The catalogue itself is also complemented by X-ray spectra and light curves for the brighter objects in each field (around 10% of the total catalogue).
2XMM is set to become a unique astronomical resource to explore both the Galactic and extragalactic X-ray source populations. The large area of the 2XMM catalogue maximises the probability of identifying the rarest and most extreme objects in the X-ray sky. In this paper we will describe the 2XMM catalogue and highlight some early science results, emphasising how exploiting the full scientific potential of 2XMM will come from the cross-correlation of the catalogue with multi-wavelength archives.

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