J/ApJ/829/20ivo://CDS.VizieR/J/ApJ/829/20doi:10.26093/cds/vizier.18290020CDSWang S.Qiu Y.Liu J.Bregman J.N.2018-05-16T07:05:17Z2018-03-08T11:26:05ZCDS support team

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

cds-question@unistra.frx-ray-sourcesgalaxiessurveysBased on the recently completed Chandra/ACIS survey of X-ray point sources in nearby galaxies, we study the X-ray luminosity functions (XLFs) for X-ray point sources in different types of galaxies and the statistical properties of ultraluminous X-ray sources (ULXs). Uniform procedures are developed to compute the detection threshold, to estimate the foreground/background contamination, and to calculate the XLFs for individual galaxies and groups of galaxies, resulting in an XLF library of 343 galaxies of different types. With the large number of surveyed galaxies, we have studied the XLFs and ULX properties across different host galaxy types, and confirm with good statistics that the XLF slope flattens from lenticular ({alpha}{\sim}1.50{\pm}0.07) to elliptical ({\sim}1.21{\pm}0.02), to spirals ({\sim}0.80{\pm}0.02), to peculiars ({\sim}0.55{\pm}0.30), and to irregulars ({\sim}0.26{\pm}0.10). The XLF break dividing the neutron star and black hole binaries is also confirmed, albeit at quite different break luminosities for different types of galaxies. A radial dependency is found for ellipticals, with a flatter XLF slope for sources located between D_25_ and 2D_25_, suggesting the XLF slopes in the outer region of early-type galaxies are dominated by low-mass X-ray binaries in globular clusters. This study shows that the ULX rate in early-type galaxies is 0.24{\pm}0.05 ULXs per surveyed galaxy, on a 5{sigma} confidence level. The XLF for ULXs in late-type galaxies extends smoothly until it drops abruptly around 4x10^40^erg/s, and this break may suggest a mild boundary between the stellar black hole population possibly including 30M{\sun} black holes with super-Eddington radiation and intermediate mass black holes.2016ApJ...829...20Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/829/20CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIX/45 : The Chandra Source Catalog, Release 1.1 (Evans+ 2012)VII/109 : IRAS Observations of Large Optical Galaxies (Rice+, 1988)J/MNRAS/419/2095 : HMXBs in nearby galaxies (Mineo+, 2012)J/ApJ/741/49 : ULX candidates in nearby galaxies (Swartz+, 2011)J/ApJS/192/10 : Chandra ACIS survey in 383 nearby galaxies. I. (Liu, 2011)J/ApJ/689/983 : LMXBs in early-type galaxies. I. Chandra (Humphrey+, 2008)J/ApJ/681/1163 : Late-type galaxies in Chandra deep fields (Lehmer+, 2008)J/ApJ/662/525 : LMXBs in globular clusters of 5 galaxies (Kundu+, 2007)J/A+A/429/1125 : Catalog of Ultraluminous X-ray sources (Liu+, 2005)J/ApJS/150/19 : ChaMP. I. First X-ray source catalog (Kim+, 2004)J/ApJ/602/231 : Chandra X-ray point sources in nearby galaxiesJ/AJ/124/2351 : Chandra Deep Field North survey. XII (Bauer+, 2002)J/MNRAS/330/547 : Local galaxy ages and metallicities (Terlevich+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/829/20https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/829/20http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/829/20https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/829/20https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/829/20http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/829/20GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/829/20/table1 (X-Ray point source populations in 343 nearby galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/829/20/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/829/20/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/829/20/table1?GETtext/xml+votable180.050000true225.29693751.70196940.0055555555555555565/8633 6/602 764 816 922 2121 2155 2282 2320 2324 2333 2372 2374 2383 2409 2687 3389 4439 4447 5067 5142 5174 5182 5196 5202 5241 5429 5469 5482 5504 5572 5587 5589 5599 5715 5793 5799 5966 5975 5982 5995 5999 6034 6047 6090 6093 6619 6623 6649 6773 7225 7241 7424 7604 7606 7624 7658 7743 7799 7941 8028 8106 8173 8195 8196 8225 10364 10454 10475 10637 10761 10817 10841 10888 10901 10905 10911 10912 10924 10925 10977 10979 10986 11006 11026 11027 11127 11246 11263 11434 11446 11448 11457 11460 11639 11681 12005 12018 13162 13397 13401 13511 13522 13672 15592 16098 16441 16605 16655 17286 17472 17754 17755 17780 18209 18212 18269 18325 18387 18398 18800 18809 18895 19611 19678 20014 20270 22751 23113 23306 24733 24824 24912 24951 25083 25100 25344 25603 25705 25888 25890 25907 25972 26125 26161 26217 26303 26309 26313 26317 26331 26336 26338 26361 26362 26365 26542 26803 27030 27079 27106 27426 27512 27514 27515 27518 27604 27643 27668 27714 27718 27719 27721 27723 27728 27734 27735 27743 27765 27767 27773 27857 27859 27904 27907 27908 27913 27914 27918 27936 27937 27938 27944 27945 27947 28015 28032 28035 28038 28045 28054 28077 28123 28141 28142 28147 28167 28172 28173 28184 28200 28221 28304 28495 28496 28498 28516 28517 28521 28524 28529 28535 28538 28608 28612 28631 31998 32482 33193 33920 33954 33986 34273 34334 34471 34493 34531 34641 34701 35243 35514 35993 36131 36194 36231 36247 36621 36773 36785 37429 38139 38347 38703 38821 38842 39836 40124 40252 40321 40410 41586 43233 43262 43339 43626 43809 43874 43881 45914 46036 46399 46477 46491 46549 46568 46987 47386 47397https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/829/20?format=asciiX-raydefaultJ/ApJ/829/20/table1X-Ray point source populations in 343 nearby galaxies_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGalaxyGalaxy namemeta.id;meta.maincharNobs[1/28] Number of observations (1)meta.numberintNsrc[0/434] Number of X-ray point sources (2)meta.numberintNXt[0/292] Number of sources detected (3)meta.numberintfCov[0.31/1] Sky coverage (4)phys.angSizefloatLXlim[35.38/39.83] Limiting X-ray luminosity (5)log(1e-07W)phys.luminosity;em.X-rayfloatNX[0/255] Number of sources detected above LXlimmeta.numberintNb/f[0/237.18] Predicted foreground/background sources for L>LXlimmeta.numberfloatNUa[0/16] Number of ULXs found in all observationsmeta.numberintnU[-1.72/8.93] Net number of ULXs from this stitched survey (6)meta.numberfloatnb/f[0/1.72] Predicted foreground/background sources for L>2.10^39^erg/smeta.numberfloatGTypeGalaxy typesrc.morph.typecharLBBlue light content of the galaxysolLumphys.luminosity;em.opt.BdoubleGArea[0.29/2318.71] D_25_ isophotal areaarcmin**2phys.angSizefloatDist[0.8166/49.5] Galaxy distanceMpcpos.distancefloatl_SFR60um[<] Limit flag on SFR60ummeta.code.errorcharSFR60um[0.00034/55.4]? Star formation rate (7)solMass/yrphys.SFRdoublenullableActivityStar-forming and nuclear activitiessrc.classcharL11Display data from Liu et al. 2011, Cat. J/ApJS/192/10meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharNEDNED column added by the CDSmeta.ref.urlchar_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main