J/A+A/547/A57ivo://CDS.VizieR/J/A+A/547/A57doi:10.26093/cds/vizier.35470057CDSTundo E.Moretti A.Tozzi P.Teng L.Rosati P.Tagliaferri G.,Campana S.2017-12-05T05:09:42Z2013-03-22T13:05:20ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxy-clustersx-ray-sourcesWe present a new sample of X-ray selected galaxy groups and clusters serendipitously observed with Swift and the X-ray Telescope (XRT). We searched the XRT archive for extended sources among 336 GRB fields with galactic latitude |b|>20{deg}. Our selection algorithm yields a flux-limited sample of 72 X-ray groups and clusters with a well defined selection function and negligible contamination. The sky coverage of the survey goes from the total 40deg^2^ to 1deg^2^ at a flux limit of 10^-14^erg/s/cm^-2 (0.5-2keV). All the X-ray sources are detected in the Swift-XRT soft (0.5-2keV) band.2012A&A...547A..57Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/547/A57CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/528/A122 : SwiftFT catalog (Puccetti+, 2011)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/547/A57https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/547/A57http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/547/A57https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/547/A57https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/547/A57http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/547/A57GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/547/A57/table2 (SXCS sources serendipitously observed with Swift X-ray Telescope (XRT))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/547/A57/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/547/A57/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/547/A57/table2?GETtext/xml+votable180.050000true0.93793-53.030280.0055555555555555566/453 646 2296 2357 4296 4323 4397 4485 4954-4955 5049 5493 5745 5801 5951 6404 8954-8955 9069 9100 9330 9682 9750 10666 12597 13312 13331 15292 16282 16526 16546 17453 17815 18492 18681 18683 18910 19868 22624 23138 26503 27961 27973 28497 32646 32715 33004 34948 35045 35090 35330 35525 36031 36074 36460 38926 40433 40795 45401 45409 46218 47436https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/547/A57?format=asciiX-raydefaultJ/A+A/547/A57/table2SXCS sources serendipitously observed with Swift X-ray Telescope (XRT)SimbadNameSimbad column added by the CDSmeta.idcharTexpVignetting corrected exposure timestime.duration;obs.exposureintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMSimbad column added by the CDSmeta.ref.urlcharNameSXCS Name, SW JHHMMSS+DDMMSSmeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainNHGalactic absorption1e+20cm**-2phys.absorption.galfloatRextExtraction radiusarcsecstat.fit.paramintCtSSoft net counts (0.5-2keV)ctphot.count;em.X-rayinte_CtSError on Soft net countsctstat.errorintSNRSoft signal to noise ratio (0.5-2keV)stat.snrfloatSFluxSoft flux (0.5-2keV) (10^-14^erg/cm^2^/s)1e-17W.m**-2phot.flux;em.X-rayfloate_SFluxError on Soft flux1e-17W.m**-2stat.errorfloatJ/A+A/547/A57/table3List of counterparts of SXCS sourceszC[0.06/0.6]? Cluster redshiftsrc.redshift;pos.heliocentricdoublenullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSXCS Name, SW JHHMMSS+DDMMSSmeta.id;meta.maincharClusterCluster conterpart survey name (1)meta.id.assoccharDistC? Distance between Source and Clusterarcminpos.angDistancefloatnullablen_zC[p] p for photometric redshift, else spectroscopicmeta.notecharGalaxyGalaxy conterpart survey name (1)meta.id.assoccharDistG? Distance between Source and Galaxyarcminpos.angDistancefloatnullablezG[0.06/0.5]? Galaxy redshiftsrc.redshift;pos.heliocentricdoublenullablen_zG[p] p for photometric redshift, else spectroscopicmeta.notecharX-rayX-ray counterpart survey name (1)meta.id.assoccharzX[0.05/1.4]? X-ray source redshiftsrc.redshift;pos.heliocentricfloatnullablezX2? Second value of X-ray source redshiftsrc.redshift;pos.heliocentricfloatnullable