Chandra survey of 13-h XMM/ROSAT survey (McHardy+, 2003)

Details Chandra survey of 13-h XMM/ROSAT survey (McHardy+, 2003) Chandra survey of 13-h XMM/ROSAT survey (McHardy+, 2003)

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..73420802m&link_type=abstract

VizieR On-line Data Catalog: J/MNRAS/342/802. Originally published in: 2003MNRAS.342..802M

Physics

Surveys

Scientific paper

We present the results of a Chandra ACIS-I survey of a high-latitude region at 13h +38{deg} which was earlier observed with ROSAT and which has recently been observed by XMM-Newton for 200ks. XMM-Newton will provide good-quality X-ray spectra for over 200 sources with fluxes around the knee of the logN/logS, which are responsible for the bulk of the X-ray background. The main aim of the Chandra observations is to provide arcsecond, or better, positions, and hence reliable identifications, for the XMM-Newton sources. The ACIS-I observations were arranged in a mosaic of four 30-ks pointings, covering almost all of the 15-arcmin radius XMM-Newton/ROSAT field. We detect 214 Chandra sources above a Cash likelihood statistic of 25, which approximates to 5{sigma} significance, to a limiting flux of ~1.3x10-15erg/cm2/s (0.5-7keV). Optical counterparts are derived from a Subaru SuprimeCam image reaching to R~27. The very large majority of the Chandra sources have an optical counterpart, with the distribution peaking at 23

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