J/ApJ/649/730ivo://CDS.VizieR/J/ApJ/649/730doi:10.26093/cds/vizier.16490730CDSWinter L.M.Mushotzky R.F.Reynolds C.S.2018-01-02T13:43:00Z2008-10-19T06:10:37ZCDS support team

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

cds-question@unistra.frsurveysgalaxiesx-ray-sourcesWe present the results of an archival XMM-Newton study of the bright X-ray point sources (LX>10^38^ergs/s) in 32 nearby galaxies. From our list of approximately 100 point sources, we attempt to determine if there is a low-state counterpart to the ultraluminous X-ray (ULX) population, searching for a soft-hard state dichotomy similar to that known for Galactic X-ray binaries and testing the specific predictions of the intermediate-mass black hole (IMBH) hypothesis. To this end, we searched for low-state objects, which we defined as objects within our sample that had a spectrum well fitted by a simple absorbed power law, and high-state objects, which we defined as objects better fitted by a combined blackbody and a power law.2006ApJ...649..730Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/649/730CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/xmm : XMM-Newton Observation Log (XMM-Newton SOC, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/649/730https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/649/730http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/649/730https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/649/730https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/649/730http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/649/730GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/649/730/Galaxies (XMM-Newton Galaxy Observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/649/730/Galaxies?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/649/730/Galaxies?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/649/730/Galaxies?GETtext/xml+votable180.050000true11.7858333-20.76055560.005555555555555556Cone search capability for table J/ApJ/649/730/table6 (Bright Point Sources Examined)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/649/730/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/649/730/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/649/730/table6?GETtext/xml+votable180.050000true11.765833-20.7961670.0055555555555555566/3389 3506 7606 7624 7743 7799 7876 7878 7953 7956 10761 10856 10905 10911 10977 10979 11027 11127 11434 16655 16666 16701 26858 28534 28535 28541 28631 33193 33984 33986 35243 35536 41586 43233 43420 43874 43881https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/649/730?format=asciiX-raydefaultJ/ApJ/649/730/GalaxiesXMM-Newton Galaxy ObservationsDur2? Second durationstime.duration;obs.exposureintnullableComCommentsmeta.notecharObsIDXMM-Newton observation ID of data examinedmeta.id;obslongrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNxNumber of ULX sources in this galaxymeta.numberintnullableGalaxyGalaxy namemeta.id;meta.maincharprimaryMTypeMorphological type, from the NASA/IPAC Extragalactic Database (NED)src.morph.typecharnHColumn density, obtained from the Web version of the nH FTOOL1e+20cm**-2phys.columnDensityfloatDistDistancec (if no reference is given, obtained from the distance modulus given in LEDA)Mpcpos.distance;pos.heliocentricfloatr_Dist? Distance reference if not LEDA (1)meta.ref;pos.frameintnullableObsID2? Second XMM-Newton observation IDmeta.id;obslongnullableDurDurationstime.duration;obs.exposureintS60um? Flux at 60umJyphot.flux.density;em.IR.30-60umdoublenullableS100um? Flux at 100umJyphot.flux.density;em.IR.60-100umdoublenullableFIR? Far-infrared flux (10^-9^erg/cm2/s)pW.m**-2phot.flux;em.IRfloatnullableLFIR? Far-infrared luminosity1e+35Wphys.luminosity;em.IRfloatnullableNULXsNumber of ULXsmeta.numberintSimbadNameSimbad column added by the CDSmeta.idcharNEDSimbad column added by the CDSchar_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/ApJ/649/730/table6Bright Point Sources ExaminedctPN? Total PN countsctphot.count;em.X-rayintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxymeta.id.parentcharULX? Source name within galaxy (1)meta.id;meta.mainintnullablef_ULX? Source peculiarities (2)meta.codeintnullableRAJ2000? Hour of Right Ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Degree of Declination (J2000)pos.eq.dec;meta.mainnullablectMOS1? Total MOS1 countsctphot.count;em.X-rayintnullablectMOS2? Total MOS2 countsctphot.count;em.X-rayintnullableCR-PN? The PN count rate0.01count.s**-1phot.count;em.X-rayfloatnullableCR-MOS1? The MOS1 count rate0.01count.s**-1phot.count;em.X-rayfloatnullableCR-MOS2? The MOS2 count rate0.01count.s**-1phot.count;em.X-rayfloatnullableIDAlternative identification of ULX sourcemeta.idcharn_ID? Individual notes (3)meta.noteintnullableLocLocation in the galaxy (4)meta.codecharf_Loc[6]? '6' when appears extended in HST imagemeta.codeintnullableRefsReferences on XMM spectra studies (6)meta.ref;pos.framechar