J/ApJ/738/136ivo://CDS.VizieR/J/ApJ/738/136doi:10.26093/cds/vizier.17380136CDSCowie L.L.Barger A.J.Hu E.M.2017-07-03T14:25:32Z2013-05-22T08:47:08ZCDS support team

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

cds-question@unistra.frline-intensitiesgalaxiesspectroscopyredshiftedultraviolet-astronomyWe present optical spectroscopy of two samples of Galaxy Evolution Explorer grism selected Ly{alpha} emitters (LAEs): one at z=0.195-0.44 and the other at z=0.65-1.25. We have also observed a comparison sample of galaxies in the same redshift intervals with the same UV magnitude distributions but with no detected Ly{alpha}. We use the optical spectroscopy to eliminate active galactic nuclei and to obtain the optical emission-line properties of the samples. We compare the luminosities of the LAEs in the two redshift intervals and show that there is dramatic evolution in the maximum Ly{alpha} luminosity over z=0-1. Focusing on the z=0.195-0.44 samples alone, we show that there are tightly defined relations between all of the galaxy parameters and the rest-frame equivalent width (EW) of H{alpha}. The higher EW(H{alpha}) sources all have lower metallicities, bluer colors, smaller sizes, and less extinction, consistent with their being in the early stages of the galaxy formation process.2011ApJ...738..136Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/738/136CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/711/928 : Low-redshift Ly{alpha} galaxies from GALEX (Cowie+, 2010)J/A+A/512/A12 : VLT/VIMOS spectroscopy in GOODS-South field (Balestra+, 2010)J/A+A/478/83 : GOODS-South Field VLT/FORS2 redshifts. III. (Vanzella+, 2008)J/ApJ/680/1072 : Ly{alpha}-emitting galaxies at 0.2<z<0.35 (Deharveng+, 2008)J/ApJS/161/21 : Extended Chandra Deep Field-South survey (Lehmer+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/738/136https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/738/136http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/738/136https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/738/136https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/738/136http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/738/136GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/738/136/lae (GALEX LAE samples })https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/738/136/lae?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/738/136/lae?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/738/136/lae?GETtext/xml+votable180.050000true53.22195806-27.809138890.005555555555555556Cone search capability for table J/ApJ/738/136/table4 (GALEX spectral sample identifications: CDFS 00)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/738/136/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/738/136/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/738/136/table4?GETtext/xml+votable180.050000true52.55029694-28.028778060.0055555555555555566/9150 9151 10191 10200 10212 10517 11230 11424 11425 11427 11428 27256 27258 27259 35388 35934 35935 35956 35957https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/738/136?format=asciiUVOpticaldefaultJ/ApJ/738/136/laeGALEX LAE samples }GALEXName (HHMM+DDMM; J2000)meta.id;meta.maincharprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSSimbad column added by the CDSmeta.idcharm_GALEX[abc] Multiplicity index (G1)meta.code.multipcharGCorrespondance with GALEX spectral sample identifications (table4)meta.idintnullableRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainzGALEX redshiftsrc.redshiftfloatlogLnuLog of the bolometric continuum luminosity, above 1216{AA}log(1e-07W)phys.luminosityfloatlogLaLog of the Ly{alpha} luminositylog(1e-07W)phys.luminosity;em.UVfloatEWLyaRest-frame equivalent width(Ly{alpha}) in {AA}0.1nmspect.line.eqWidthinte_EWLyaEWLya uncertainty0.1nmstat.errorintzOpt? Optical ground-based redshiftsrc.redshift;pos.heliocentricdoublenullablef_zOpt[ABD] Flag on optical data (1)meta.codecharOTypeOptical type (Sy1.8, Sy1.5 or STAR)src.classcharEWHa? Rest-frame H{alpha} equivalent width in {AA} (or H{beta} EW for table 3)0.1nmspect.line.eqWidth;em.line.Halphafloatnullablee_EWHa? EWHa uncertainty0.1nmstat.errorfloatnullable[NII]/Ha? [NII]6584 to H{alpha}(6563) ratiospect.line.intensity;arith.ratiofloatnullablee_[NII]/Ha? [NII]/Ha uncertaintyspect.line.intensity;arith.ratiofloatnullable[OIII]/Hb? [OIII]5007 to H{beta}(4861) ratiospect.line.intensity;arith.ratiofloatnullablee_[OIII]/Hb? [OIII]/Hb uncertaintyspect.line.intensity;arith.ratiofloatnullable[OIII]/Hg? [OIII]4363 to H{gamma}(4341) ratiospect.line.intensity;arith.ratiofloatnullablee_[OIII]/Hg? [OIII]/Hg uncertaintyspect.line.intensity;arith.ratiofloatnullablelogFHa? Log of H{alpha} flux (erg/cm^2^/s) (2)log(mW.m**-2)phot.fluxfloatnullablelogFHb? Log of H{beta} flux (erg/cm^2^/s) (2)log(mW.m**-2)phot.fluxfloatnullableC10Display the Cowie et al. (2010, Cat. J/ApJ/711/928) data if anymeta.numberintnullableNEDSimbad column added by the CDSmeta.refcharJ/ApJ/738/136/table4GALEX spectral sample identifications: CDFS 00LAEPresence in the LAE samplemeta.ref.urlintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/100] Running sequential number (<[CBH2011] NNN> in Simbad)meta.recordintGALEXName (HHMM+DDMM; J2000)meta.id;meta.maincharm_GALEX[abc*] Multiplicity index (G1)meta.code.multipcharRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainNUV? NUV band magnitudemagphot.mag;em.UVfloatnullableFUV? FUV band magnitudemagphot.mag;em.UV.100-200nmfloatnullablez[0.202/1.235] GALEX redshift from Ly{alpha} emission linesrc.redshiftfloatWidthLy{alpha} line widthkm/sspect.line.widthinte_WidthWidth uncertaintykm/sstat.error;spect.line.widthintUVT[AGN] UV classification (AGN) (1)src.classcharzOpt? Optical redshiftsrc.redshift;pos.heliocentricfloatnullabler_zOpt[l] l = optical redshift from litterature (2)meta.ref;pos.framecharOType[star] Optical type (star)src.classcharf_logLX[E] Source within ECDF-S (3)meta.codecharlogLX[40.9/44]? Log of the rest-frame 2-8keV luminosity (3)log(1e-07W)phys.luminosity;em.X-rayfloatnullableOCatCross-match within 1" with the VLT GOODS-S catalogs (J/A+A/512/A12 and J/A+A/478/83) and with the ECDF-S survey (Cat. J/ApJS/161/21)meta.ref.urlintnullable