J/ApJ/888/92ivo://CDS.VizieR/J/ApJ/888/92doi:10.26093/cds/vizier.18880092CDSLarson K.L.Diaz-Santos T.Armus L.Privon G.C.Linden S.T.Evans A.S.,Howell J.Charmandaris V.U. VSanders D.B.Stierwalt S.,Barcos-Munoz L.Rich J.Medling A.Cook D.Oklopcic A.Murphy E.J.,Bonfini P.2021-10-25T10:18:57Z2021-07-21T14:06:13ZCDS support team

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

cds-question@unistra.frgalaxiesinfrared-sourcesstar-forming-regionssurveysWe present HST narrowband near-infrared imaging of Pa{alpha} and Pa{beta} emission of 48 local luminous infrared galaxies (LIRGs) from the Great Observatories All-Sky LIRG Survey. These data allow us to measure the properties of 810 spatially resolved star-forming regions (59 nuclei and 751 extranuclear clumps) and directly compare their properties to those found in both local and high-redshift star-forming galaxies. We find that in LIRGs the star-forming clumps have radii ranging from ~90 to 900pc and star formation rates (SFRs) of ~1x10^-3^ to 10M_{sun}_/yr, with median values for extranuclear clumps of 170pc and 0.03M_{sun}_/yr. The detected star-forming clumps are young, with a median stellar age of 8.7Myr, and have a median stellar mass of 5x10^5^M_{sun}_. The SFRs span the range of those found in normal local star-forming galaxies to those found in high-redshift star-forming galaxies at z=1-3. The luminosity function of the LIRG clumps has a flatter slope than found in lower-luminosity, star-forming galaxies, indicating a relative excess of luminous star-forming clumps. In order to predict the possible range of star-forming histories and gas fractions, we compare the star-forming clumps to those measured in the MassiveFIRE high-resolution cosmological simulation. The star-forming clumps in MassiveFIRE cover the same range of SFRs and sizes found in the local LIRGs and have total gas fractions that extend from 10% to 90%. If local LIRGs are similar to these simulated galaxies, we expect that future observations with ALMA will find a large range of gas fractions, and corresponding star formation efficiencies, among the star-forming clumps in LIRGs.2020ApJ...888...92Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/888/92CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/hst : HST Archived Exposures Catalog (STScI, 2007)J/ApJ/428/693 : Rosette Nebula & Maddalena Cloud structures (Williams+ 1994)J/AJ/126/1607 : IRAS Revised Bright Galaxy Sample (Sanders+, 2003)J/AJ/136/2782 : Star formation efficiency in nearby galaxies (Leroy+, 2008)J/ApJ/741/32 : Spatial extent of (U)LIRGs in MIR. II. (Diaz-Santos+, 2011)J/A+A/533/A119 : GOODS-Herschel North and South catalogs (Elbaz+, 2011)J/ApJS/206/1 : Mid-IR properties of GOALS nearby LIRGs (Stierwalt+, 2013)J/ApJ/774/68 : [CII]157.7um feature in LIRGs (Diaz-Santos+, 2013)J/ApJ/790/124 : Dust and gas physics of the GOALS sample (Stierwalt+, 2014)J/MNRAS/462/3766 : List of galaxies with star forming regions (Cook+, 2016)J/A+A/590/A67 : Ionized gas maps of local U/LIRGs (Piqueras-Lopez+, 2016)J/ApJ/846/32 : Herschel FIR spectra of GOALS galaxies (Diaz-Santos+, 2017)J/ApJ/853/108 : Clumpy galaxies in CANDELS. II. 0.5<=z<3.0 (Guo+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/888/92https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/888/92http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/888/92https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/888/92https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/888/92http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/888/92GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/888/92/table1 (Observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/888/92/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/888/92/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/888/92/table1?GETtext/xml+votable180.050000true2.472545825.92373890.0055555555555555566/629 1677 1865 1918 2518 3364 3824 6348 8482 8997 10144 10281 10404 10465 14164 15323 16091 17252 17904 18932 19283 20060 20254 22468 22721 24584 24958 26028 26035 26811 29439 30822 30879 31158 35602 37559 37821 38139 38786 41402 41982 43107 43925 44626 46811 46882 47162 47235https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/888/92?format=asciiInfrareddefaultJ/ApJ/888/92/table1ObservationsSimbadNameSimbad column added by the CDSmeta.idcharPID[10169/13690] Program IDmeta.id;obsintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNcNumber of clumps for this galaxy (link to Table 3)meta.numberintnullableGalGalaxy name(s)meta.idcharIRASIRAS name (FHHMMm+DDMM, B1950 or HHMMm+DDMM, B1950)meta.id;meta.maincharz[0.0093/0.035] Redshiftsrc.redshiftdoubleFiltFiltersmeta.code;instr.filtercharANameAbbreviated name as used in Table 3; column added by CDSmeta.idcharprimaryS03Display data from the IRAS revised bright galaxy sample (Sanders+, 2003, J/AJ/126/1607) within 30"meta.ref.urlcharNEDNED 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.mainJ/ApJ/888/92/table3Properties of star-forming clumps in GOALS galaxiesClumpClump name within ANamemeta.id.part;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintANameGalaxy/IRAS abbreviated namemeta.id.part;meta.maincharSFR[0.0022/9.6] Clump Star Formation RatesolMass/yrmeta.iddoublee_SFR[0.0001/1] SFR errorsolMass/yrstat.error;phys.SFRfloatAge[1.5e+6/1.9e+10]? Clump ageyrtime.agedoublenullablee_Age[100000/1.5e+10]? Clump age erroryrstat.error;time.agedoublenullableMass[13150/3.9e+10]? Clump masssolMassphys.massdoublenullablee_Mass[6.5/2.8e+9]? Clump mass errorsolMassstat.error;phys.massdoublenullablel_RadUpper limit flag on Radmeta.code.errorcharRad[88/882] Effective radius of the clumpspcphys.size.radiusinte_Rad[2/267] Effective radius errorpcstat.errorint