J/MNRAS/344/134ivo://CDS.VizieR/J/MNRAS/344/134doi:10.26093/cds/vizier.73440134CDSHumphrey P.J.Fabbiano G.Elvis M.Church M.J.Balucinska-Church M.2024-06-28T20:17:32Z2005-04-19T16:41:42ZCDS support team

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

cds-question@unistra.frx-ray-sourcesWe present results of a Chandra survey of the ultraluminous X-ray sources (ULX) in 13 normal galaxies, in which we combine source detection with X-ray flux measurement. 22 ULX were detected, i.e. with L_X_>10^39^erg/s (L_10_) and 39 other sources were detected with L_X_>5x10^38^erg/s (L_5_). We also use radial intensity profiles to remove extended sources from the sample. The majority of sources are not extended, which for a typical distance constrains the emission region size to less than 50pc. X-ray colour-colour diagrams and spectral fitting results were examined for indicators of the ULX nature. In the case of the brighter sources, spectral fitting generally requires two-component models. In only a few cases do colour-colour diagrams or spectral fitting provide evidence of a black hole nature. We find no evidence of a correlation with stellar mass, however, there is a strong correlation with star formation as indicated by the 60-m flux as found in previous studies.2003MNRAS.344..134Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/344/134CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 2002)J/ApJS/143/25 : Intermediate-luminosity X-ray objects catalog (Colbert+ 2002)J/A+A/429/1125 : Ultraluminous X-ray sources catalog (Liu+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/344/134https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/344/134http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/344/134https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/344/134https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/344/134http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/344/134GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/344/134/galaxies (Galaxies observed (tables 1, 2 and 3 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/344/134/galaxies?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/344/134/galaxies?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/344/134/galaxies?GETtext/xml+votable180.050000true190.7083332.6879170.005555555555555556Cone search capability for table J/MNRAS/344/134/table4 (ULX detections, possible ULX detections and Other super-Eddington detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/344/134/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/344/134/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/344/134/table4?GETtext/xml+votable180.050000true43.214167-1.2752780.005555555555555556Cone search capability for table J/MNRAS/344/134/table5 (The extended source L_5_ detections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/344/134/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/344/134/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/344/134/table5?GETtext/xml+votable180.050000true190.7091672.68750.0055555555555555566/3389 5715 7225 7281 7624 10761 16655 17745 26125 26313 34471 34534-34535 46549https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/344/134?format=asciiX-raydefaultJ/MNRAS/344/134/galaxiesGalaxies observed (tables 1, 2 and 3 of the paper)MTypeMorphological typecharNameGalaxy namecharprimaryl_N5Limit flag on N5charrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intTType? T morphological typefloatnullableBTmag? Total B0 magnitudemagfloatnullableD25? B-band 25th magnitude isophotearcminfloatnullableNHLine-of-sight H column density within our galaxy for the centroid of each external galaxy1e+20cm**-2floatObsObservation identification numberintDateObservation datenullableExpexposition timeksfloatReslnMinimum resolvable size scale (equivalent to 0.5arcsec) using our best distances forpcfloatTechnTechnique used to the distance determination (1)charr_DistBibCode of the distance referencecharAutAuthor's name for the referencecharComCommnents of the referencecharSimbadSimbad column added by the CDScharNEDSimbad column added by the CDScharl_N2Limit flag on N2charN2Number of sources with L>2x10^38^erg/s (N2_tot_=158+/-13)floate_N2? rms uncertainty on N2floatnullableN2bkgExpected number of background sources with L>2x10^38^erg/s (N2bkg_tot_=40.9)doubleN5Number of sources with L>5x10^38^erg/s (N5_tot_=61+/-6)floate_N5? rms uncertainty on N5floatnullableN5bkgExpected number of background sources with L>5x10^38^erg/s (N5bkg_tot_=16.6)doublel_N10Limit flag on N10charN10Number of sources with L>10^39^erg/s, ULX (N10_tot_=22+/-4)floate_N10? rms uncertainty on N10floatnullableN10bkgExpected number of background sources with L>10^39^erg/s (N10bkg_tot_=8.40)doubleN100Number of sources with L>10^40^erg/s (N100_tot_=2)intN100bkgExpected number of background sources with L>10^40^erg/s (N100bkg_tot_=1.0)double_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/344/134/table4ULX detections, possible ULX detections and Other super-Eddington detectionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intType[UPO] U: ULX, P: Possible ULX detections, O: Other super-Eddington detectionscharNameGalaxy namecharPSXPSX source designation in the galaxy (1)charCXOUCXOU designation (JHHMMSS.s+DDMMSS, 2000)charCountX-ray CountctintRateX-ray Count Rate0.001count.s**-1floatL(0.3-7.0)Luminosity in the 0.3-7.0keV band, in 10^38^erg/s1e+31WfloatE_L(0.3-7.0)Error in L(0.3-7.0), upper limit1e+31Wfloate_L(0.3-7.0)Error in L(0.3-7.0), lower limit1e+31WfloatDROffset from the centre of the galaxyarcsecintFlag[+-] Flag (2)char_RAPosition (from the CXOU name) (right ascension part)degpos.eq.ra;meta.main_DEPosition (from the CXOU name) (declination part)degpos.eq.dec;meta.mainJ/MNRAS/344/134/table5The extended source L_5_ detectionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intNameGalaxy namecharESXESX source designation in the galaxy (1)charRA2000Right ascension (2000)pos.eq.ra;meta.mainDE2000Declination (2000)pos.eq.dec;meta.mainCountX-ray CountctintRateX-ray Count Rate0.001count.s**-1floatL(0.3-7.0)Luminosity in the 0.3-7.0keV band, in 10^38^erg/s1e+31WfloatE_L(0.3-7.0)Error in L(0.3-7.0), upper limit1e+31Wfloate_L(0.3-7.0)Error in L(0.3-7.0), lower limit1e+31WfloatDROffset from the centre of the galaxyarcsecfloat