J/ApJ/738/69ivo://CDS.VizieR/J/ApJ/738/69doi:10.26093/cds/vizier.17380069CDSShim H.Chary R.-R.Dickinson M.Lin L.Spinrad H.Stern D.Yan C.-H.2017-06-21T08:22:48Z2013-02-13T14:29:40ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryhst-photometryinfrared-photometryredshiftedline-intensitiessurveysWe present evidence for strong H{alpha} emission in galaxies with spectroscopic redshifts in the range of 3.8<z<5.0 over the Great Observatories Origins Deep Survey fields. Among 74 galaxies detected in the Spitzer IRAC 3.6 and 4.5um bands, more than 70% of the galaxies show clear excess at 3.6um compared to the expected flux density from stellar continuum only. We provide evidence that this 3.6um excess is due to H{alpha} emission redshifted into the 3.6um band, and classify these 3.6um excess galaxies to be H{alpha} emitter (HAE) candidates. The selection of HAE candidates using an excess in broadband filters is sensitive to objects whose rest-frame H{alpha} equivalent width (EW) is larger than 350{AA}. The H{alpha} inferred star formation rates (SFRs) of the HAEs range between 20 and 500M_{sun}_/yr and are a factor of ~6 larger than SFRs inferred from the UV continuum. The ratio between the H{alpha} luminosity and UV luminosity of HAEs is also on average larger than that of local starbursts.2011ApJ...738...69Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/738/69CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/261 : GOODS initial results (Giavalisco+, 2004)J/A+A/512/A12 : VLT/VIMOS spectroscopy in GOODS-South field (Balestra+, 2010)J/A+A/511/A50 : JHks of GOODS-South field (Retzlaff+, 2010)J/ApJS/187/251 : Ultradeep Ks imaging in the GOODS-N (Wang+, 2010)J/A+A/478/83 : GOODS-S Field VLT/FORS2 redshifts. III. (Vanzella+, 2008)J/ApJ/689/687 : GOODS-N spectroscopic survey (Barger+, 2008)J/ApJ/666/863 : GOODS MIPS early-type galaxies (Van Der Wel+, 2007)J/A+A/454/423 : GOODS-South Field VLT/FORS2 redshifts. II. (Vanzella+, 2006)J/A+A/434/53 : GOODS-South Field redshifts (Vanzella+, 2005)http://irsa.ipac.caltech.edu/data/GOODS/ : NASA/IPAC IRSA GOODS Spitzer datahttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/738/69https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/738/69http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/738/69https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/738/69https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/738/69http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/738/69GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/738/69/table1 (Photometry of galaxies at 3.8<z<5.0)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/738/69/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/738/69/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/738/69/table1?GETtext/xml+votable180.050000true53.0169167-27.72299170.0055555555555555566/11252 359352.0616683193919197e-20 4.75565502943315e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/738/69?format=asciiOpticalInfrareddefaultJ/ApJ/738/69/table1Photometry of galaxies at 3.8<z<5.0SimbadNameSimbad column added by the CDSmeta.idcharl_BmagLimit flag on Bmagmeta.code.errorcharl_KmagLimit flag on Kmagmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy name (WNNNNN) (G1)meta.id;meta.maincharprimaryf_ID[m] Inconsistent SED (1)meta.codecharRAJ2000Hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of declination (J2000)pos.eq.dec;meta.mainzspSpectroscopic redshiftsrc.redshiftfloatSEDSimbad column added by the CDSmeta.ref.urlcharBmagHST/ACS F435W AB magnitude (2)magphot.mag;em.opt.Bfloate_Bmag? Bmag uncertaintymagstat.error;phot.mag;em.opt.BfloatnullableVmagHST/ACS F606W AB magnitude (2)magphot.mag;em.opt.Rfloate_VmagVmag uncertaintymagstat.error;phot.mag;em.opt.VfloatimagHST/ACS F775W AB magnitude (2)magphot.mag;em.opt.Ifloate_imagimag uncertaintymagstat.error;phot.mag;em.opt.IfloatzmagHST/ACS F850LP AB magnitude (2)magphot.mag;em.opt.Ifloate_zmagzmag uncertaintymagstat.error;phot.mag;em.opt.IfloatF110W? HST/NICMOS F110W (J-band) AB magnitude (3)magphot.mag;em.IR.Jfloatnullablee_F110W? F110W uncertaintymagstat.errorfloatnullableF160W? HST/NICMOS F160W (H-band) AB magnitude (3)magphot.mag;em.IR.Hfloatnullablee_F160W? F160W uncertaintymagstat.errorfloatnullablel_JmagLimit flag on Jmagmeta.code.errorcharJmag? J-band AB magnitude (3)magphot.mag;em.IR.Jfloatnullablee_Jmag? Jmag uncertaintymagstat.error;phot.mag;em.IR.JfloatnullableHmag? H-band AB magnitude (3)magphot.mag;em.IR.Hfloatnullablee_Hmag? Hmag uncertaintymagstat.error;phot.mag;em.IR.HfloatnullableKmag? K-band AB magnitude (3)magphot.mag;em.IR.Kfloatnullablee_Kmag? Kmag uncertaintymagstat.error;phot.mag;em.IR.Kfloatnullable[3.6]Spitzer/IRAC 3.6um-band AB magnitudemagphot.mag;em.IR.3-4umfloate_[3.6]uncertainty on [3.6]magstat.errorfloat[4.5]Spitzer/IRAC 4.5um-band AB magnitudemagphot.mag;em.IR.4-8umfloate_[4.5]uncertainty on [4.5]magstat.errorfloatl_[5.8]Limit flag on 5.8magmeta.code.errorchar[5.8]Spitzer/IRAC 5.8um-band AB magnitudemagphot.flux.density;em.IR.4-8umfloate_[5.8]? uncertainty on [5.8]magstat.errorfloatnullablel_[8.0]Limit flag on 8.0magmeta.code.errorchar[8.0]Spitzer/IRAC 8.0um-band AB magnitudemagphot.flux.density;em.IR.8-15umfloate_[8.0]? uncertainty on [8.0]magstat.errorfloatnullableGOODSDisplay the GOODS photometry from Cat. II/261meta.ref.urlcharJ/ApJ/738/69/table2Spectral energy distribution-fitting resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDGalaxy name (WNNNNN) (G1)meta.id;meta.maincharprimaryf_ID[a,b ] Galaxy detected in X-ray/sub-mm (1)meta.codecharzspSpectroscopic redshiftsrc.redshiftfloatchi2{chi}^2^ (see equation (1))stat.fit.chi2floatlogMLog of stellar masslog(solMass)phys.massfloatE(B-V)E(B-V)magphot.color.excessfloatAgeStellar population ageMyrtime.ageinttaue-folding timescale of star formation {tau}Myrphys.SFRintbetaUV spectral slope {beta}spect.indexfloatLawExtinction law (SB or SMC) (2)meta.id;stat.fitcharlogLHa? Log of H{alpha} luminositylog(1e-07W)phys.luminosity;em.line.Halphafloatnullablee_logLHa? logLHa uncertaintylog(1e-07W)stat.errorfloatnullableEWHa? H{alpha} equivalent width0.1nmspect.line.eqWidth;em.line.Halphaintnullablee_EWHa? EWHa uncertainty0.1nmstat.errorintnullableSFRHa? H{alpha} star formation ratesolMass/yrphys.SFR;spect.linefloatnullableSFRUVUV star formation ratesolMass/yrmeta.idfloatS3.6S_ch1_ (3.6um) IR excess (3)stat.fit.goodnessfloat