J/ApJ/768/102ivo://CDS.VizieR/J/ApJ/768/102doi:10.26093/cds/vizier.17680102CDSKim D.-C.Evans A.S.Vavilkin T.Armus L.Mazzarella J.M.Sheth K.,Surace J.A.Haan S.Howell J.H.Diaz-Santos T.Petric A.Iwasawa K.,Privon G.C.Sanders D.B.2017-10-09T08:08:04Z2017-09-11T09:09:05ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourceshst-photometryastronomical-modelsA Hubble Space Telescope/Advanced Camera for Surveys study of the structural properties of 85 luminous and ultraluminous (L_IR_>10^11.4^ L_{sun}_) infrared galaxies (LIRGs and ULIRGs) in the Great Observatories All-sky LIRG Survey (GOALS) sample is presented. Two-dimensional GALFIT analysis has been performed on F814W "I-band" images to decompose each galaxy, as appropriate, into bulge, disk, central point-spread function (PSF) and stellar bar components. The fraction of bulge-less disk systems is observed to be higher in LIRGs (35%) than in ULIRGs (20%), with the disk+bulge systems making up the dominant fraction of both LIRGs (55%) and ULIRGs (45%). Further, bulge+disk systems are the dominant late-stage merger galaxy type and are the dominant type for LIRGs and ULIRGs at almost every stage of galaxy-galaxy nuclear separation. The mean I-band host absolute magnitude of the GOALS galaxies is -22.64+/-0.62 mag (1.8_-0.4_^+1.4^ L_1_^*^), and the mean bulge absolute magnitude in GOALS galaxies is about 1.1 mag fainter than the mean host magnitude. Almost all ULIRGs have bulge magnitudes at the high end (-20.6 to -23.5 mag) of the GOALS bulge magnitude range. Mass ratios in the GOALS binary systems are consistent with most of the galaxies being the result of major mergers, and an examination of the residual-to-host intensity ratios in GOALS binary systems suggests that smaller companions suffer more tidal distortion than the larger companions. We find approximately twice as many bars in GOALS disk+bulge systems (32.8%) than in pure-disk mergers (15.9%) but most of the disk+bulge systems that contain bars are disk-dominated with small bulges. The bar-to-host intensity ratio, bar half-light radius, and bar ellipticity in GOALS galaxies are similar to those found in nearby spiral galaxies. The fraction of stellar bars decreases toward later merger stages and smaller nuclear separations, indicating that bars are destroyed as the merger advances. In contrast, the fraction of nuclear PSFs increases toward later merger stages and is highest in late-stage systems with a single nucleus. Thus, light from an active galactic nucleus or compact nuclear star cluster is more visible at I band as ULIRGs enter their latter stages of evolution. Finally, both GOALS elliptical hosts and nearby Sloan Digital Sky Survey (SDSS) ellipticals occupy the same part of the surface brightness versus half-light radius plot (i.e., the "Kormendy Relation") and have similar slopes, consistent with the possibility that the GOALS galaxies belong to the same parent population as the SDSS ellipticals.2013ApJ...768..102Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/768/102CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)J/A+A/546/A64 : H and K-band stacked spectra of U/LIRGs (Piqueras Lopez+, 2012)J/ApJ/777/156 : Spitzer/IRS spectra of GOALS luminous IR galaxiesJ/ApJS/206/1 : Mid-IR properties of GOALS nearby LIRGs (Stierwalt+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/768/102https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/768/102http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/768/102https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/768/102https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/768/102http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/768/102GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/768/102/table2 (GALFIT Results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/768/102/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/768/102/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/768/102/table2?GETtext/xml+votable180.050000true2.77755-12.10786940.0055555555555555566/231 295 650 700 1521 2309 3824 3934 4993 5116 5523 5816 6098 7552 8673 8997 9770 9895 10081 10144 10465 11029 11101 11908 12537 13184 13632 14164 15333 15570 16016 16755 16758 17075 17183 17252 17506 18406 19283 19619 20061 20208 20896 21016 21747 22721 24855 26028 26035 26298 26324 27537 28188 28393 28999 29439 29937 30383 30580 30822 30879 31081 31158 34010 36188 37113 37821 38139 38786 38935 39472 39960 40801 41276 41402 43107 43147 43389 44671 45387 46079 46130 46296 47235 478542.0401237512456292e-19 2.706461185444514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/768/102?format=asciiInfrareddefaultJ/ApJ/768/102/table2GALFIT Resultsb/aAxis ratiophys.angSize;arith.ratiofloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharn[14B] Best fit model component in each nucleus (1)stat.fit.param;meta.modelledcharImagApparent I-band magnitude for each component (HST ACS/WFC F814W)magphot.mag;em.opt.IfloatRhHalf-light radiuskpcphys.size.radiusfloatmu1/2Mean surface brightness within half-light radiusmag/arcsecphot.mag.sbfloatImagModel? Apparent I-band magnitude for all model components (HST ACS/WFC F814W)magphot.mag;em.opt.IfloatnullableImagPSF? Apparent I-band magnitude for PSF component (HST ACS/WFC F814W)magphot.mag;em.opt.IfloatnullableB[Y/N-] Visually-identified bar? (2)meta.codecharIbar/Ihost? Bar to host intensity ratio%phot.flux;arith.ratiofloatnullableIpsf/Ihost? PSF to host intensity ratio%phot.flux;arith.ratiofloatnullableIres/Ihost? Residual (total-model) to host intensity ratio%phot.flux;arith.ratiofloatnullableIMagTot? Total absolute I-band magnitude of the system (HST ACS/WFC F814W)magphys.magAbsfloatnullableIMagHost? Host absolute I-band magnitude (total-PSF) of the system (HST ACS/WFC F814W)magphys.magAbsfloatnullableSimbadNameSimbad column added by the CDSmeta.idchar_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