J/ApJ/774/136ivo://CDS.VizieR/J/ApJ/774/136doi:10.26093/cds/vizier.17740136CDSTzanavaris P.Fragos T.Tremmel M.Jenkins L.Zezas A.Lehmer B.D.,Hornschemeier A.Kalogera V.Ptak A.Basu-Zych A.R.2017-07-06T06:25:40Z2015-04-07T13:33:33ZCDS support team

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

cds-question@unistra.frx-ray-binary-starsastronomical-modelsgalaxiesWe present the largest-scale comparison to date between observed extragalactic X-ray binary (XRB) populations and theoretical models of their production. We construct observational X-ray luminosity functions (oXLFs) using Chandra observations of 12 late-type galaxies from the Spitzer Infrared Nearby Galaxy Survey. For each galaxy, we obtain theoretical XLFs (tXLFs) by combining XRB synthetic models, constructed with the population synthesis code StarTrack, with observational star formation histories (SFHs). We identify highest-likelihood models both for individual galaxies and globally, averaged over the full galaxy sample. Individual tXLFs successfully reproduce about half of the oXLFs, but for some galaxies we are unable to find underlying source populations, indicating that galaxy SFHs and metallicities are not well matched and/or that XRB modeling requires calibration on larger observational samples. Given these limitations, we find that the best models are consistent with a product of common envelope ejection efficiency and central donor concentration =~0.1, and a 50% uniform-50% "twins" initial mass-ratio distribution. We present and discuss constituent subpopulations of tXLFs according to donor, accretor, and stellar population characteristics. The galaxy-wide X-ray luminosity due to low-mass and high-mass XRBs, estimated via our best global model tXLF, follows the general trend expected from the L_X_-star formation rate and L_X_-stellar mass relations of Lehmer et al. Our best models are also in agreement with modeling of the evolution of both XRBs over cosmic time and of the galaxy X-ray luminosity with redshift.2013ApJ...774..136Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/774/136CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/chandra : The Chandra Archive Log (CXC, 1999-2014)J/ApJ/766/19 : XRB pop. synthesis models in 0<z<20 gal. (Tremmel+, 2013)J/ApJS/204/14 : Deep Chandra observations of NGC 4649. I. (Luo+, 2013)J/ApJ/764/41 : X-ray binary evolution across cosmic time (Fragos+, 2013)J/ApJ/763/128 : Chandra Local Volume Survey: NGC 404 sources (Binder+, 2013)J/ApJ/758/15 : Chandra X-ray point sources of NGC 300 (Binder+, 2012)J/other/Sci/337.444 : RV curves of Galactic massive O stars (Sana+, 2012)J/ApJ/749/130 : X-ray binaries in NGC 1291 with Chandra (Luo+, 2012)J/MNRAS/419/2095 : HMXBs in nearby galaxies (Mineo+, 2012)J/A+A/533/A33 : LMXBs detected in nearby galaxies (Zhang+, 2011)J/ApJS/190/233 : Spectroscopy of SINGS galaxies (Moustakas+, 2010)J/ApJS/190/1 : A survey of stellar families (Raghavan+, 2010)J/ApJ/719/L79 : BH spin-orbit misalignment in Galactic XRBs (Fragos+, 2010)J/MNRAS/396/1231 : Astrophotometric catalogue of NGC 891 (Rejkuba+, 2009)J/MNRAS/360/974 : Proper motions of pulsars (Hobbs+, 2005)J/ApJ/599/218 : Chandra LMXB in NGC 4365 and NGC 4382 (Sivakoff+, 2003)J/ApJ/586/826 : Chandra X-ray observations of NGC 1316 (Kim+, 2003)J/ApJ/577/738 : M31 Chandra X-ray point sources (Kong+, 2002)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/774/136https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/774/136http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/774/136https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/774/136https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/774/136http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/774/136GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/774/136/sings (SINGS galaxy subsample star formation histories and model-galaxy pair likelihood)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/774/136/sings?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/774/136/sings?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/774/136/sings?GETtext/xml+votable180.050000true49.3275-41.10806940.0055555555555555566/5715 5751 7241 10761 10841 10856 11434 27030 27514 28015 28167 34471https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/774/136?format=asciidefaultJ/ApJ/774/136/table5Parameters and global likelihood values for 15 best models ranked by likelihoodrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintModel[1/288] Model numbermeta.id;meta.mainintlam*a[0.1/0.5] Common envelope efficiency times the central concentration ({lambda}{alpha}_CE_)stat.paramfloatIMF[-2.7/-2.35] Exponent of high-mass power law component of IMF (G1)stat.paramfloateta[0.2/2] Stellar wind strength parameterstat.paramfloatCE-HGAllowed CE-HG flag (G2)stat.paramcharqBinary mass ratio distribution: "Flat" or "50-50" (G3)stat.paramcharkappa[0/0.1] {kappa}_DCBH_ kick distribution mutiplier (G4)stat.fit.paramfloatRank[1/192] Rank of model based on likelihood value in this paperstat.paramintrF13[1/192] Rank of model based on likelihood value in Fragos et al. 2013, J/ApJ/764/41stat.paramintrT13[1/192] Rank of model based on likelihood value in Tremmel et al. 2013, J/ApJ/766/19stat.paramintlogLK[-30317/0] Natural logarithm of ratio of each global likelihood to maximum global likelihood in this tablestat.likelihoodlongJ/ApJ/774/136/singsSINGS galaxy subsample star formation histories and model-galaxy pair likelihoodMod[197/277] Model numbermeta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNGCNGC numbermeta.id;meta.mainintDist[5.2/14.1] Distance (Moustakas et al. 2010, J/ApJS/190/233)Mpcpos.distance;pos.heliocentricfloatTypeMorphological Hubble type (de Vaucouleurs et al. 1991, VII/155)src.morph.typecharTT[1/7] Morphological numerical typesrc.morph.typeintlogSFR[-0.7/0.7] Log of Star Formation Rate (1)log(solMass.yr**-1)phys.SFRfloate_logSFR[0.1/0.3] logSFR uncertainty (1)log(solMass.yr**-1)stat.error;phys.SFRfloatlogM*[9.3/11.2] Log of stellar mass (1)log(solMass)phys.massfloate_logM*[0.02/0.2] logM* uncertainty (1)log(solMass)stat.errorfloatsSFR[0.15/17] Specific star formation rate (SFR/M*)1e-11yr**-1phys.SFRdoubleNsrc[16/88] Number of X-ray point sources in XSINGS (Jenkins+, 2010HEAD...11.2905J)meta.numberintlogMgal[9.5/11.3] Total stellar mass plus gas mass from stellar mass losslog(solMass)phys.massfloatlogtauo[-0.6/1] e-folding timescale for old stellar populationlog(Gyr)time.scalefloattauo[10] Age of old stellar populationGyrtime.agefloatlogtauy[-1.3/0] e-folding timescale for young stellar populationlog(Gyr)time.scalefloattauy[0.05/0.2] Age of young stellar populationGyrtime.agefloatlogfb[-3/-1] Mass fraction of young stellar populationphys.massfloatlam*a[0.1] Common envelope efficiency times the central concentration ({lambda}{alpha}_CE_)stat.paramfloatIMF[-2.7] IMF exponent (G1)stat.paramfloateta[0.2/2] stellar wind strength parameter {eta}stat.paramfloatCE-HGCE event with a Hertzsprung gap? (G2)stat.paramcharqBinary mass-ratio distribution (50-50) (G3)stat.paramcharkappa[0/0.1] {kappa}_DCBH_ kick distribution multiplier (G4)stat.fit.paramfloatRank[1/12] Rank of best-fit galaxy-model pairs based on pair likelihood valuestat.paramintlogLK[-425/5636] Likelihood ratio (2)stat.likelihoodintSimbadSimbad column added by the CDSmeta.ref.urlcharNEDSimbad column added by the CDSmeta.ref.urlchar_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.main