XMM/CFRS ivo://nasa.heasarc/xmmcfrscat NASA/GSFC HEASARC Waskett et al. 2026-07-17 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source This table contains the X-ray source catalogs for 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 have 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 CDS table J/MNRAS/350/785/tablea12.dat (the merged Tables A1 and A2 from the published paper). This is a service provided by NASA HEASARC . 2004MNRAS.350..785W https://heasarc.gsfc.nasa.gov/W3Browse/all/xmmcfrscat.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=xmmcfrscat& GET text/xml 180 99999 true 45.61876 -0.10009 0.0166666666666667 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=xmmcfrscat GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_xmmcfrscat&Action=More+Options&Action=Parameter+Search&ConeAdd=1 XMM-NEWTON 0.0166666666666667 X-ray public xmmcfrscat XMM-Newton/Canada-France Redshift Survey Fields X-Ray Sources name Source Designation meta.id;meta.main char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable counts Total Counts ct phot;em.X-ray double nullable flux Flux in Total (0.5-10keV) Band (erg/s/cm^2) erg/s/cm^2 phot.flux;em.X-ray double nullable flux_error RMS Uncertainty of Total Band Flux (erg/s/cm^2) erg/s/cm^2 stat.error;phot.flux;em.X-ray double nullable "__x_ra_dec" System unit vector column double nullable "__y_ra_dec" System unit vector column double nullable "__z_ra_dec" System unit vector column double nullable "__row" System index column char nullable lii Galactic Longitude degree pos.galactic.lon double nullable mos2_hr MOS2 Camera Hardness Ratio double nullable notes Flags Indicate Additional Notes char nullable mos2_hr_error RMS Uncertainty in MOS2 Hardness Ratio double nullable hb_flux_error RMS Uncertainty in Hard Band Flux (erg/s/cm^2) erg/s/cm^2 double nullable sb_flux_error RMS Uncertainty in Soft Band Flux (erg/s/cm^2) erg/s/cm^2 double nullable pn_hr_error RMS Uncertainty in PN Hardness Ratio double nullable mos1_hr_error RMS Uncertainty in MOS1 Hardness Ratio double nullable sb_flux Flux in Soft (0.5-2keV) Band (erg/s/cm^2) erg/s/cm^2 double nullable bii Galactic Latitude degree pos.galactic.lat double nullable pn_hr PN Camera Hardness Ratio double nullable mos1_hr MOS1 Camera Hardness Ratio double nullable hb_flux Flux in Hard (2-10keV) Band (erg/s/cm^2) erg/s/cm^2 double nullable