J/ApJ/716/615ivo://CDS.VizieR/J/ApJ/716/615doi:10.26093/cds/vizier.17160615CDSO'Shaughnessy R.Kalogera V.Belczynski K.2012-07-08T20:11:48Z2012-06-19T12:23:45ZCDS support team

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

cds-question@unistra.frpulsarsstellar-evolutionary-modelsgalaxiesIn this paper, we estimate binary compact object merger detection rates for LIGO, including the potentially significant contribution from binaries that are produced in elliptical galaxies near the epoch of peak star formation. Specifically, we convolve hundreds of model realizations of elliptical- and spiral-galaxy population syntheses with a model for elliptical- and spiral-galaxy star formation history as a function of redshift. Our results favor local merger rate densities of 4x10^-3^Mpc^-3^/Myr for binary black holes (BHs), 3x10^-2^Mpc^-3^/Myr for binary neutron stars (NSs), and 10^-2^Mpc^-3^/Myr for BH-NS binaries. Assuming a detection signal-to-noise ratio threshold of 8 for a single detector (in practice as part of a network, to reduce its noise), corresponding to radii Dbns of the effective volume inside of which a single LIGO detector could observe the inspiral of two 1.4M_{sun}_ NSs of 14Mpc and 197Mpc, for initial and advanced LIGO, we find event rates of any merger type of 2.9x10^-2^-0.46 and 25-400yr^-1^ (at 90% confidence level), respectively.2010ApJ...716..615Ohttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/716/615CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJ/713/671 : Gravitational waves from pulsars (Abbott+, 2010)J/ApJ/675/1459 : Compact Binary Coalescence Galaxy Catalog (Kopparapu+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/716/615https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/716/615http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/716/615https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/716/615https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/716/615http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/716/615GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJ/716/615/table1Parameters of all binary evolution simulations used in this paper, along with predicted merger rates R, detection rates R, and (for spiral simulations) posterior probabilitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintT[E/S] Galaxy type (E)lliptical or (S)piralmeta.code.classcharZMetallicity relative to the SunSunphys.abund.ZfloatpInital Mass Function slopestat.paramfloatrMass ratio distribution exponent (1)stat.paramfloatwWind strengthstat.paramfloatv1Maxwellian velocity dispersion 1 (2)km/sphys.veloc.dispersionfloatv2Maxwellian velocity dispersion 2 (2)km/sphys.veloc.dispersionfloatwt[0/1] Relative proportions of two o maxwellian distributionsstat.paramfloatalpha[0/1] {alpha}*{lambda}, the common envelope efficiencystat.paramfloatbeta[1] Specific angular momentum of matter lost (3)phys.angMomentumintfaNonconservative mass transfer fraction accreted (4)phys.massfloatNNumber of binaries simulatedmeta.numberintN(bh-hb)Number of BH-BH binaries formedmeta.numberintN(bh-ns)? Number of BH-NS binaries formed (5)meta.numberintnullableN(ns-ns)? Number of NS-NS binaries formed (5)meta.numberintnullablem(bh-bh)Number of BH-BH binaries that merge within 13.7 Gyrmeta.numberintm(bh-ns)? Number of BH-NS binaries that merge within 13.7 Gyr (5)meta.numberintnullablem(ns-ns)? Number of NS-NS binaries that merge within 13.7 Gyr (5)meta.numberintnullabler(bh-bh)Log Rate density for BH-BH mergers (6)log(Myr**-1.Mpc**-3)phys.SFRfloatr(bh-ns)? Log Rate density for BH-NS mergers (7)log(Myr**-1.Mpc**-3)phys.SFRfloatnullabler(ns-ns)? Log Rate density for BH-NS mergers (5,7)log(Myr**-1.Mpc**-3)phys.SFRfloatnullabler*(bh-bh)Log Rate density for BH-BH mergers (8)log(Myr**-1.Mpc**-3)phys.SFRfloatr*(bh-ns)? Log Rate density for BH-BH mergers (8)log(Myr**-1.Mpc**-3)phys.SFRfloatnullabler*(ns-ns)? Log Rate density for BH-BH mergers (5,8)log(Myr**-1.Mpc**-3)phys.SFRfloatnullableR(bh-bh)LIGO detection rate for BH-BH mergers (9)yr**-1time;arith.ratiofloatR(bh-ns)? LIGO detection rate for BH-NS mergers (9)yr**-1time;arith.ratiofloatnullableR(ns-ns)? LIGO detection rate for NS-NS mergers (9)yr**-1time;arith.ratiofloatnullablePpost? Posterior probability factor (10)stat.fit.goodnessfloatnullable