J/A+A/628/A71ivo://CDS.VizieR/J/A+A/628/A71doi:10.26093/cds/vizier.36280071CDSHerrero-Illana R.Privon G.C.Evans A.S.Diaz-Santos T.,Perez-Torres M.A.U V.Alberdi A.Iwasawa K.Armus L.Aalto S.,Mazzarella J.Chu J.Sanders D.B.Barcos-Munoz L.Charmandaris V.,Linden S.T.Yoon I.Frayer D.T.Inami H.Kim D.-C.Borish H.J.,Conway J.J Murphy E.Song Y.Stierwalt S.Surace J.2019-08-21T11:26:24Z2019-08-08T08:05:30ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyradio-spectroscopyco-line-emissionWe present IRAM-30m Telescope ^12^CO and ^13^CO observations of a sample of 55 luminous and ultraluminous infrared galaxies (LIRGs and ULIRGs) in the local universe. This sample is a subset of the Great Observatory All-Sky LIRG Survey (GOALS), for which we use ancillary multi-wavelength data to better understand their interstellar medium and star formation properties. Fifty-three (96%) of the galaxies are detected in ^12^CO, and 29 (52%) are also detected in ^13^CO above a 3{sigma} level. The median full width at zero intensity (FWZI) velocity of the CO line emission is 661km/s, and 54% of the galaxies show a multi-peak CO profile. Herschel photometric data is used to construct the far-IR spectral energy distribution of each galaxy, which are fit with a modified blackbody model that allows us to derive dust temperatures and masses, and infrared luminosities. We make the assumption that the gas-to-dust mass ratio of (U)LIRGs is comparable to local spiral galaxies with a similar stellar mass (i.e., gas/dust of mergers is comparable to their progenitors) to derive a CO-to-H_2_ conversion factor of <{alpha}>=1.8^+1.3^_0.8_M_{sun}_/(K.km/s/pc^2^); such a value is comparable to that derived for (U)LIRGs based on dynamical mass arguments. We derive gas depletion times of 400-600Myr for the (U)LIRGs, compared to the 1.3Gyr for local spiral galaxies. Finally, we re-examine the relationship between the ^12^CO/^13^CO ratio and dust temperature, confirming a transition to elevated ratios in warmer systems.2019A&A...628A..71Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/628/A71CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/628/A71https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/628/A71http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/628/A71https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/628/A71https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/628/A71http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/628/A71GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/628/A71/table1 (Source list)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/628/A71/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/628/A71/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/628/A71/table1?GETtext/xml+votable180.050000true2.7772917-12.107750.0055555555555555566/2518 7552 8266 8482 10210 10453 10716 13523 15323 15570 16091 16755 16758 17075 17183 17252 17506 17736 17904 18432 18932 20118 20896 21016 21416 21747 22792 23921 24232 24855 25462 26028 26035 26198 26324 26932 28999 29439 30383 30822 30879 31503 32548 32740 36188 40801 43994 44671 48665https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/628/A71?format=asciiMillimeterRadiodefaultJ/A+A/628/A71/table1Source listrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSourceSource namemeta.id;meta.maincharn_Source[12] Note on Source (1)meta.notecharRAJ2000Right ascension (J2000) (2)pos.eq.ra;meta.mainDEJ2000Declination (J2000) (2)pos.eq.dec;meta.mainlog(LIR)Infrared luminositylog(solLum)phys.luminosity;em.IRfloatn_log(LIR)[+] Note on log(LIR) (3)meta.notecharSNameShort name used for the spectrum files (4)meta.idcharsp12Show the ^12^CO spectrummeta.ref.urlcharsp13Show the ^13^CO spectrummeta.ref.urlchar