J/ApJ/783/119ivo://CDS.VizieR/J/ApJ/783/119doi:10.26093/cds/vizier.17830119CDSWold I.G.B.Barger A.J.Cowie L.L.2017-08-29T15:10:57Z2016-07-11T14:19:19ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyultraviolet-photometryredshiftedline-intensitiesactive-galactic-nucleix-ray-sourcesWe construct a flux-limited sample of 135 candidate z~1 Ly{alpha} emitters (LAEs) from Galaxy Evolution Explorer (GALEX) grism data using a new data cube search method. These LAEs have luminosities comparable to those at high redshifts and lie within a 7Gyr gap present in existing LAE samples. We use archival and newly obtained optical spectra to verify the UV redshifts of these LAEs. We use the combination of the GALEX UV spectra, optical spectra, and X-ray imaging data to estimate the active galactic nucleus (AGN) fraction and its dependence on Ly{alpha} luminosity. We remove the AGNs and compute the luminosity function (LF) from 60 z~1 LAE galaxies. We find that the best-fit LF implies a luminosity density increase by a factor of ~1.5 from z~0.3 to z~1 and ~20 from z~1 to z~2. We find a z~1 volumetric Ly{alpha} escape fraction of 0.7%+/-0.4%.2014ApJ...783..119Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/783/119CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)J/MNRAS/425/2116 : Arizona CDFS Environment Survey, ACES (Cooper+, 2012)J/ApJ/744/110 : LAE galaxies between 2.1=<z{<=}3.1 (Ciardullo+, 2012)J/ApJ/736/31 : HETDEX pilot survey. II. 1.9<z<3.8 LAEs (Blanc+, 2011)J/ApJ/738/136 : LAEs between 0.19<z<1.25 with GALEX grism (Cowie+, 2011)J/ApJ/725/394 : High-redshift Ly{alpha} emitters (Hu+, 2010)J/ApJ/711/928 : Low-redshift Ly{alpha} galaxies from GALEX (Cowie+, 2010)J/ApJS/191/124 : Optical spectroscopy of ECDF-S X-ray sourcesJ/ApJS/180/102 : AEGIS-X: Chandra deep survey (Laird+, 2009)J/ApJ/696/1195 : COSMOS AGN spectroscopic survey. I. (Trump+, 2009)J/ApJS/184/158 : Chandra COSMOS survey I. (Elvis+, 2009)J/ApJ/693/1713 : Spectroscopy of X-ray sources in ECDF-S (Treister+, 2009)J/A+A/498/13 : Lyman-{alpha} emitters from redshifts z~2-3 (Nilsson+, 2009)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/172/70 : zCOSMOS-bright catalog (Lilly+, 2007)J/ApJ/671/1227 : Ly{alpha} galaxies at z~4.5 (Dawson+, 2007)J/ApJ/667/79 : Ly{alpha} emission-line galaxies at z=3.1 (Gronwall+, 2007)J/ApJ/648/7 : Ly{alpha} emitters at z=6.5 in Subaru Deep FieldJ/PASJ/58/313 : Ly{alpha} emitters in the SUBARU Deep FieldJ/AJ/131/2373 : Extended Chandra Deep Field-South survey (Virani+, 2006)J/ApJS/161/21 : Extended Chandra Deep Field-South survey (Lehmer+, 2005)J/ApJS/161/9 : X-ray survey of the NDWFS Bootes field (Kenter+, 2005)J/PASJ/57/165 : Ly{alpha} emitters in the SUBARU Deep FieldJ/ApJS/155/271 : Chandra Deep Field-South: Optical spectroscopyJ/AJ/126/539 : The Chandra Deep Fields North and South (Alexander+, 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/783/119https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/783/119http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/783/119https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/783/119https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/783/119http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/783/119GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/783/119/LAEs (Emission line (tables 2--5))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/783/119/LAEs?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/783/119/LAEs?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/783/119/LAEs?GETtext/xml+votable180.050000true52.79637389-28.2904440.0055555555555555566/9151 10517 11424 11425 11427 27256 27258 27259 35934 35935 359577.447298006782415e-19 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/783/119?format=asciiUVOpticalX-raydefaultJ/ApJ/783/119/LAEsEmission line (tables 2--5)SimbadNameSimbad column added by the CDSmeta.idcharUTypeUltraviolet classified AGNsrc.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldRegion observed (see the "Note on table2.dat" section above for details on the fields)obs.fieldcharGALEXGALEX name (HHMMSS+DDMMSS; J2000)meta.id;meta.maincharf_GALEX[i] Flag "i" on GALEX indicates LAE candidate not listed in Barger et al. (2012ApJ...749..106B)meta.codecharRAJ2000Right Ascension in decimal degrees based on near-ultraviolet (NUV) position (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees based on near-ultraviolet (NUV) position (J2000)degpos.eq.dec;meta.mainNUV[21.5/25.2] GALEX/NUV AB magnitudemagphot.mag;em.UVfloatFUV[-31.1/32.8] GALEX/FUV AB magnitudemagphot.mag;em.UVfloatzUV[0.67/1.17] Redshift from the GALEX ultraviolet spectrumsrc.redshift;pos.heliocentricfloatLLya[42.2/43.7]? Logarithm of the Ly{alpha} luminosity log L(Ly{alpha}) (in erg/s)log(1e-07W)phys.luminosity;em.UVfloatnullableEW[6/398]? Rest-frame Ly{alpha} equivalent width EW_r_(Ly{alpha}) (in {AA})0.1nmspect.line.eqWidthintnullablee_EW[2/65]? The 1{sigma} error in EW0.1nmstat.error;spect.line.eqWidthintnullablelogFX[-15.4/-13.1]? Logarithm of the X-ray flux (in erg/cm^2^/s) (1)log(mW.m**-2)phot.flux;em.X-rayfloatnullablef_logFX[e] Flag "e" on logFX indicates a source not detected in X-ray (2)meta.codecharRA2deg? Right Ascension in decimal degrees based on optical position (J2000)degpos.eq.ranullableDE2deg? Declination in decimal degrees based on optical position (J2000)degpos.eq.decnullableOff[0.1/8.2]? Offset between the optical to ultraviolet positionarcsecpos;arith.difffloatnullablen_zOptNote on zOpt (no z=no optical redshift, star, or *=optical redshift in brackets in the paper)meta.notecharzOpt[0.35/1.17]? Optical redshift z_opt_src.redshift;pos.heliocentricfloatnullablef_zOptFlag on zOpt (a-n) (3)meta.codecharOTypeOptical classification (AGN or star)src.classchar