J/ApJS/222/12ivo://CDS.VizieR/J/ApJS/222/12doi:10.26093/cds/vizier.22220012CDSGong H.Liu J.Maccarone T.2017-01-23T22:00:00Z2016-02-18T12:14:24ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgalaxiesradio-sourcessurveysUsing Chandra archive data we conduct a thorough survey of luminous X-ray sources. We directly analyze about 9400 ACIS Observations and cross-correlate the X-ray sources with 77000 galaxies within 250Mpc. The final catalog includes 119 unique luminous X-ray source candidates with L_X_>3x10^40^erg/s from 93 galaxies or 41 HLX candidates with L_X_>1x10^41^erg/s from 35 galaxies. We derive a moderate contamination rate due to foreground or background sources. We also cross-correlate the catalog with FIRST, perform variability and periodicity tests, and analyze one HLX candidate in particular. Our catalog could be a starting point to perform follow-up observations.2016ApJS..222...12Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/222/12CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-2014)VIII/92 : The FIRST Survey Catalog, Version 2014Dec17 (Helfand+ 2015)IX/45 : The Chandra Source Catalog, Release 1.1 (Evans+ 2012)VII/237 : HYPERLEDA. I. Catalog of galaxies (Paturel+, 2003)J/MNRAS/446/470 : ULX candidates in luminous IR galaxies (Luangtip+, 2015)J/AJ/143/144 : ULX candidates in nearby Arp galaxies (Smith+, 2012)J/ApJ/741/49 : ULX candidates in nearby galaxies (Swartz+, 2011)J/MNRAS/416/1844 : 2XMM ultraluminous X-ray source candidates (Walton+, 2011)J/ApJS/192/10 : Chandra ACIS survey in 383 nearby galaxies. I. (Liu, 2011)J/A+A/493/339 : XMM-Newton serendipitous Survey. V. (Watson+, 2009)J/ApJ/687/471 : Observational comparison between ULXs and XRBs (Berghea+, 2008)J/ApJ/664/458 : Spectral fit of ULX sources (Devi+, 2007)J/A+A/452/739 : ULX sources and FIRST radio sources (Sanchez-Sutil+, 2006)J/ApJ/649/730 : ULX population in nearby galaxies from XMM (Winter+, 2006)http://cxc.cfa.harvard.edu/ : Chandra X-ray Observatory (CXC) home pagehttp://sundog.stsci.edu/ : VLA FIRST survey home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/222/12https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/222/12http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/222/12https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/222/12https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/222/12http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/222/12GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/222/12/table1 (Extreme luminous X-ray source candidates in D25s)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/222/12/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/222/12/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/222/12/table1?GETtext/xml+votable180.050000true2.93035-28.930230.005555555555555556Cone search capability for table J/ApJS/222/12/table2 (Cross-correlation between our catalog and FIRST)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/222/12/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/222/12/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/222/12/table2?GETtext/xml+votable180.050000true10.46091-9.303410.0055555555555555566/50 1701 2343 3519 4181 6033 6098 7288 8520 8537 8950 9434 9468 9583 10355 10379 10565 11512 11626 12553 13511 15333 15891 16434 16492 16713 16755 17237 18016 18071 18209 18809 19283 19321 19954 20083 22577 22722 23296 23332 24943 24954 25610 25669 25762 25888 25950 26028 27314 27414 27486 27861 28075 28275 28352 31158 32989 33605 33616 33628 33648 34161 35055 35071 35548 35576 36258 36457 36713 39079 43837 43874 43898 43939 43948 43977 44247 44554 45222 45446 45633 45984 46079 46130 46484 46811 469119.276497240453405e-25 9.276497240453405e-25https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/222/12?format=asciiX-rayRadiodefaultJ/ApJS/222/12/table1Extreme luminous X-ray source candidates in D25sCommCommentsmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[497/15049] Chandra observation IDmeta.id;obsintExp[1.5/150] Exposure timekstime.duration;obs.exposurefloatRAJ2000[2.9/359.3] Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-78.5/71.8] Declination (J2000)degpos.eq.dec;meta.mainNcts[10.2/10080.6] Net counts with wavdetectphot.count;arith.ratiofloatPGC[2248/702439] PGC sequence number (Cat. VII/237)meta.id;meta.mainintDist[38.5/248.8] DistanceMpcpos.distance;pos.heliocentricfloatFlux0.3-8keV absorbed flux in erg/cm^2^/s (1)mW.m**-2phot.flux;em.X-raydoubleLX[30.6/14164] 0.3-8keV luminosity in 10^39^erg/s (1)1e+32Wphys.luminosity;em.X-raydoubleK-S[0/0.006]? Kolmogorov-Smirnov (K-S) test (2)stat.fit.goodnessdoublenullabler_CommComment source (3)meta.ref;pos.framecharCXODisplay the Chandra Source Catalog (IX/45) within 1"meta.ref.urlintnullableFDisplay the FIRST data (table2) if anymeta.ref.urlintnullableJ/ApJS/222/12/table2Cross-correlation between our catalog and FIRSTOTypeObject type in SIMBADsrc.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintObsID[904/13895] Chandra observation IDmeta.id;obsintRAJ2000[10.4/240.6] Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-9.4/63.3] Declination (J2000)degpos.eq.dec;meta.mainFlux0.3-8keV absorbed flux in erg/cm^2^/smW.m**-2phot.flux;em.X-raydoubleFIRST[7156/933679] FIRST sequence number (recno in Cat. VIII/92)meta.id.crossintRAFdeg[10.4/240.6] FIRST right ascension (J2000)degpos.eq.raDEFdeg[-9.4/63.3] FIRST declination (J2000)degpos.eq.decFint[1/2947.1] Integrated flux density at 1.4GHzmJyphot.flux.density;em.radio.750-1500MHzfloatSep[0.2/2.91] Separation between source and FIRSTarcsecpos.angDistancefloatlogLR/LX[-14.4/-9.2] Radio to X-ray luminosityHz**-1phys.luminosity;arith.ratiofloat