XCS ivo://nasa.heasarc/xcs NASA/GSFC HEASARC Mehrtens et al. 2026-07-17 NASA/GSFC HEASARC help desk heasarc-vo at athena.gsfc.nasa.gov Survey Source The XMM Cluster Survey (XCS) is a serendipitous search for galaxy clusters using all publicly available data in the XMM-Newton Science Archive. Its main aims are to measure cosmological parameters and trace the evolution of X-ray scaling relations. In their paper, the authors present the first data release from the XMM Cluster Survey (XCS-DR1). This consists of 503 optically confirmed, serendipitously detected, X-ray clusters. Of these clusters, 256 are new to the literature and 357 are new X-ray discoveries. They present 463 clusters with a redshift estimate (0.06 < z < 1.46), including 261 clusters with spectroscopic redshifts. The remainder have photometric redshifts. In addition, the authors have measured X-ray temperatures (kT<sub>X</sub>) for 401 clusters (0.4 < kT<sub>X</sub> < 14.7 keV). This table was created by the HEASARC in May 2013 based on <a href="https://cdsarc.cds.unistra.fr/ftp/cats/J/MNRAS/423/1024">CDS Catalog J/MNRAS/423/1024</a> file xcsdr1.dat. This is a service provided by NASA HEASARC . 2012MNRAS.423.1024M https://heasarc.gsfc.nasa.gov/W3Browse/all/xcs.html Catalog Research served-by HEASARC TAP https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=xcs& GET text/xml 180 99999 true 45.95125 -77.878139 0.05 https://heasarc.gsfc.nasa.gov/xamin/vo/tap https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/getvotable.pl?name=xcs GET text/xml https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_xcs&Action=More+Options&Action=Parameter+Search&ConeAdd=1 XMM-NEWTON 0.05 X-ray public xcs XMM-Newton Cluster Survey Catalog, DR1 Version name XMMXCS Source Designation (XMMXCS JHHMMSS.s+DDMMSS.s) meta.id;meta.main char nullable alt_name Alternative Source Designation in Literature meta.id char nullable ra Right Ascension degree pos.eq.ra;meta.main double nullable dec Declination degree pos.eq.dec;meta.main double nullable counts Counts in the 0.5-2.0keV Band ct phot;em.X-ray.soft double nullable redshift Adopted Cluster Redshift src.redshift double nullable kt X-Ray Temperature keV phys.temperature double nullable kt_neg_err 1-Sigma Lower Error for X-Ray Temperature keV stat.error;phys.temperature double nullable kt_pos_err 1-Sigma Upper Error for X-Ray Temperature keV stat.error;phys.temperature double nullable l_bol_500 Bolometric (0.05-100keV) Luminosity within R_500 Radius erg/s phys.luminosity double nullable l_bol_500_neg_err 1-Sigma Lower Error for Bolometric (0.05-100keV) Luminosity within R_500 Radius erg/s stat.error;phys.luminosity double nullable l_bol_500_pos_err 1-Sigma Upper Error for Bolometric (0.05-100keV) Luminosity within R_500 Radius erg/s stat.error;phys.luminosity 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 r_200_pos_err 1-Sigma Upper Error for Radius R_200 kpc stat.error;phys.size.radius int nullable zoo_class XCS-Zoo Classification: b, g, s, na meta.code char nullable l_bol_200_pos_err 1-Sigma Upper Error for Bolometric (0.05-100keV) Luminosity within R_200 Radius erg/s stat.error;phys.luminosity double nullable l_bol_200 Bolometric (0.05-100keV) Luminosity within R_200 Radius erg/s phys.luminosity double nullable redshift_type Redshift Type (spec, phot or X-ray) meta.code;src.redshift char nullable r_200_neg_err 1-Sigma Lower Error for Radius R_200 kpc stat.error;phys.size.radius short nullable bii Galactic Latitude degree pos.galactic.lat double nullable lii Galactic Longitude degree pos.galactic.lon double nullable ref_redshift Redshift Source meta.ref;src.redshift char nullable l_bol_200_neg_err 1-Sigma Lower Error for Bolometric (0.05-100keV) Luminosity within R_200 Radius erg/s stat.error;phys.luminosity double nullable r_500_pos_err 1-Sigma Upper Error for Radius R_500 kpc stat.error;phys.size.radius int nullable r_500_neg_err 1-Sigma Lower Error for Radius R_500 kpc stat.error;phys.size.radius short nullable short_name XMMXCS Short Source Designation (XMMXCS JHHMM.m+DDMM) meta.id char nullable best_zoo Best Zoo (DR7, NXS, S82 or dss) meta.code char nullable r_500 Radius R_500 Used to Derive Bolometric Luminosity with R_500 Radius kpc phys.size.radius int nullable r_200 Radius R_200 Used to Derive Bolometric Luminosity within R_200 Radius kpc phys.size.radius int nullable