J/ApJ/890/150ivo://CDS.VizieR/J/ApJ/890/150doi:10.26093/cds/vizier.18900150CDSChandar R.Johns P.Mok A.Prestwich A.Gallo E.Hunt Q.2024-04-19T13:57:38Z2021-09-01T12:45:09ZCDS support team

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

cds-question@unistra.frgalaxiesvisible-astronomyx-ray-binary-starshst-photometryx-ray-sourcesThe high-energy emission from nearby, star-forming galaxies is dominated by X-ray binaries, where a neutron star or black hole is accreting mass from either a low-mass (<~M_{sun}_) or high-mass (>~8M_{sun}_) star. Donor stars with intermediate masses ~3-7M_{sun}_ are also possible, but rarer in our Galaxy. Since it is not possible to separate low-, intermediate-, and high-mass X-ray binaries (LMXBs, IMXBs, and HMXBs) from their X-ray properties alone, we use optical images of M101 taken with the Hubble Space Telescope to directly constrain the masses of donor stars in X-ray binaries down to ~3M_{sun}_. For X-ray binaries that still live within their parent star cluster, the age of the cluster provides strong constraints on the mass of the donor and hence type of binary. We present the classification, on a source-by-source basis, of 140 X-ray point sources in the nearby spiral galaxy M101 (D=6.4+/-0.2Mpc). We find that, overall, HMXBs appear to follow the spiral arms, while LMXBs dominate the bulge region as expected, but also appear to form an inter-arm disk population. The X-ray luminosity functions for HMXBs and LMXBs are well fit by a power-law distribution, dN/dL_X_{propto}L^{alpha}^, with {alpha}=-1.71+/-0.06 (HMXBs) and {alpha}=-1.96+/-0.08 (LMXBs), and the brightest sources are consistent with the expectations from sampling statistics without requiring a physical cutoff. Overall, our results for HMXB and LMXB populations agree well with the specific star formation rate map presented for M101 recently by Lehmer and collaborators.2020ApJ...890..150Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/890/150CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-2014)B/hst : HST Archived Exposures Catalog (STScI, 2007)IX/57 : The Chandra Source Catalog (CSC), Release 2.0 (Evans+, 2019)J/ApJ/613/279 : ACS Virgo Cluster Survey. III. M87 (Jordan+, 2004)J/ApJ/662/525 : LMXBs in globular clusters of 5 galaxies (Kundu+, 2007)J/ApJ/689/983 : LMXBs in early-type galaxies. I. Chandra (Humphrey+, 2008)J/MNRAS/392/L55 : Globular clusters in M31 from K-band phot. (Peacock+, 2009)J/ApJ/693/8 : High-redshift QSOs in the COSMOS survey (Brusa+, 2009)J/ApJ/733/124 : Cepheids in M101 observed with HST (Shappee+, 2011)J/ApJ/741/86 : XRBs and star clusters in NGC 4449 (Rangelov+, 2011)J/MNRAS/419/2095 : HMXBs in nearby galaxies (Mineo+, 2012)J/ApJ/805/160 : Old star clusters in M101 from HST (Simanton+, 2015)J/ApJS/228/2 : Chandra Deep Field-South survey: 7Ms sources (Luo+, 2017)J/ApJS/239/13 : Chandra PHAT X-ray catalog of the M31 disk (Williams+, 2018)J/ApJS/243/3 : Chandra observations of SINGS galaxies (Lehmer+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/890/150https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/890/150http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/890/150https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/890/150https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/890/150http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/890/150GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/890/150/table1 (M101 X-ray point source properties)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/890/150/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/890/150/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/890/150/table1?GETtext/xml+votable180.050000true210.8045947854.347986590.0055555555555555566/11434https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/890/150?format=asciiX-rayOpticaldefaultJ/ApJ/890/150/table1M101 X-ray point source propertiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintID[1/162] Internal identifiermeta.id;meta.mainintRAJ2000[210.63/210.97] Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[54.25/54.44] Declination (J2000)degpos.eq.dec;meta.mainlogLx[0.1/206] log 0.3-8keV X-ray luminositylog(1e+29W)phys.luminosity;em.X-rayfloate_logLx[0.3/541] Uncertainty in logLxlog(1e+29W)stat.errorfloatVmag[20.29/29.15]? Apparent HST V band magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag[0.01/0.5]? Uncertainty in Vmagmagstat.error;phot.magfloatnullableB-V[-0.7/3.1]? The (B-V) color indexmagphot.color;em.opt.B;em.opt.Vfloatnullablee_B-V[0.03/1.3]? Uncertainty in B-Vmagstat.error;phot.color;em.opt.BfloatnullableV-I[-2.4/5.8]? The (V-I) color indexmagphot.color;em.opt.V;em.opt.Ifloatnullablee_V-I[0.02/0.6]? Uncertainty in V-Imagstat.error;phot.color;em.opt.VfloatnullableClassClassification (1)meta.codecharQ[1/3] Quality flag (1=high confidence) (2)meta.code.qualintNotesAdditional notesmeta.notecharSimbadNameSimbad column added by the CDSmeta.idcharnullable