This table contains the proposed identifications for all the good optical ID candidates (true probability value P' that the object is not associated of < 0.15) corresponding to the X-ray sources from the XMM-Newton surveys of the 3 and 14 hours Right Ascension (hereafter 3-h and 14-h, respectively) fields from the Canada-France Redshift Survey. (These fields are also known as the Groth Strip). The X-ray sources cover the 0.5 - 10 keV flux range from ~2 x 10<sup>-15</sup> - 10<sup>-13</sup> erg/cm<sup>2</sup>/s. The authors have used a subset of the XMM-Newton sources, which have Chandra positions, to determine the best method of obtaining optical identifications of sources with only XMM-Newton positions. They found optical identifications for 79% of the XMM-Newton sources for which there were deep optical images. The sources without optical identifications are likely to be optically fainter and have higher redshifts than the sources with identifications. The authors have estimated 'photometric redshifts' for the identified sources, calibrating their method using ~200 galaxies in the fields with spectroscopic redshifts. They find that the redshift distribution has a strong peak at z ~ 0.7. This table was created by the HEASARC in July 2005 based on the combination of CDS table J/MNRAS/350/785/tablea34.dat (the merged Tables A3 and A4 from the published paper) and CDS table J/MNRAS/350/785/tablea56.dat (the merged Tables A5 and A6 from the published paper). This is a service provided by NASA HEASARC .
XMM-Newton Medium Deep Survey/VIRMOS VLT Deep Survey 4-Sigma Catalog
Short Name:
XMM/VIRMOS
Date:
07 Mar 2025
Publisher:
NASA/GSFC HEASARC
Description:
The XMM-Newton Medium Deep Survey/VIRMOS VLT Deep Survey (XMDS/VVDS) 4-Sigma Catalog contains 286 X-ray sources with their optical identification taken from the XMDS survey (using the XMM-Newton EPIC instrument). It is the first catalog of X-ray sources resulting from the central area of the XMM-LSS (Large-Scale Structure Survey). This first version is limited to sources detected at 4{sigma} at least in one energy band, AND falling in the 1 square degree area covered by the optical photometric VVDS survey, which allowed the authors to provide optical and radio identifications. This table was created by the HEASARC in August 2005 based on CDS table J/A+A/439/413/xmds1.dat. This is a service provided by NASA HEASARC .
