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Description
The SSC's XID programme is a follow-up and identification project designed to ensure that the potential of the XMM-Newton serendipitous survey can be exploited by the community in the context of a wide range of scientific programmes. Its main elements are a number of complementary sub-programmes designed to obtain the identifications for well-defined samples of X-ray sources drawn from selected XMM-Newton fields using optical/IR spectroscopy. The programme is also supported by a substantial imaging programme, needed for the selection of the spectroscopic targets, but which is also an important resource in its own right given the large sky area and hence X-ray source sample it covers. One of the principal objectives of the programme is to obtain completely identified samples which can be used to characterise the overall XMM-Newton source population sufficiently well that the basic X-ray and optical parameters can be used to assign a statistical identification for a large fraction of all the sources in the XMM-Newton serendipitous source catalogue. The XID programme started in mid-2000. Most of the programme is now complete. The XIDResult Database collects together the main results from the XID programme in a uniform way, providing access to the individual source identifications and the key optical and X-ray data for each object. Currently in the XIDResult Database contains 3 key XID programme subsamples, the XBS (XID bright flux sample), the XMS (XID medium flux sample) and the GPS (Galactic source sample), all of which have been published or are in press. The main references for each of these subsamples are as follows: * XBS: Caccianiga et al. 2008, A&A 477, 735 (400 sources, 238 spectra) * XMS: Barcons et al. 2007, A&A 476, 1191 (319 sources, 280 spectra) * GPS: Motch et al. 2010, A&A in press (43 sources, 27 spectra)
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