J/ApJ/736/31ivo://CDS.VizieR/J/ApJ/736/31doi:10.26093/cds/vizier.17360031CDSBlanc G.A.Adams J.J.Gebhardt K.Hill G.J.Drory N.Hao L.,Bender R.Ciardullo R.Finkelstein S.L.Fry A.B.Gawiser E.,Gronwall C.Hopp U.Jeong D.Kelzenberg R.Komatsu E.MacQueen P.,Murphy J.D.Roth M.M.Schneider D.P.Tufts J.2024-09-06T20:12:38Z2013-01-23T07:46:39ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyredshiftedsurveysultraviolet-astronomyline-intensitiesWe study the escape of Ly{alpha} photons from Ly{alpha} emitting galaxies (LAEs) and the overall galaxy population using a sample of 99 LAEs at 1.9<z<3.8 detected through integral-field spectroscopy of blank fields by The Hobby Eberly Telescope Dark Energy Experiment Pilot Survey. For 89 LAEs with broadband counterparts we measure ultraviolet (UV) luminosities and UV slopes, and estimate E(B-V) under the assumption of a constant intrinsic UV slope for LAEs. These quantities are used to estimate dust-corrected star formation rates (SFRs). Comparison between the observed Ly{alpha} luminosity and that predicted by the dust-corrected SFR yields the Ly{alpha} escape fraction. We also measure the Ly{alpha} luminosity function and luminosity density ({rho}_Ly{alpha}_) at 2<z<4. Using this and other measurements from the literature at 0.3<z<7.7 we trace the redshift evolution of {rho}_Ly{alpha}_. We compare it to the expectations from the star formation history of the universe and characterize the evolution of the Ly{alpha} escape fraction of galaxies.2011ApJ...736...31Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/736/31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/192/5 : Emission-line galaxies from HETDEX pilot survey (Adams+, 2011)J/ApJ/736/18 : Lyman-continuum emission at z~3 in SSA22 field (Nestor+, 2011)J/ApJ/711/928 : Low-redshift Ly{alpha} galaxies from GALEX (Cowie+, 2010)J/A+A/498/13 : Lyman-{alpha} emitters from redshifts z~2-3 (Nilsson+, 2009)J/ApJ/705/639 : Sizes of Lyman alpha emitters at z=3.1 (Bond+, 2009)J/ApJ/614/75 : Lyman{alpha} emitting galaxies at z=2.38 (Francis+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/736/31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/736/31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/736/31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/736/31https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/736/31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/736/31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/736/31/table1 (Properties of HETDEX Pilot Survey LAEs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/736/31/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/736/31/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/736/31/table1?GETtext/xml+votable180.050000true35.3095-4.5272777780.0055555555555555566/11252 17691 23209 27258https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/736/31?format=asciiUVdefaultJ/ApJ/736/31/table1Properties of HETDEX Pilot Survey LAEsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHPS[3/474] Identification number (1)meta.id;meta.mainintz[2.08/3.74] Redshiftsrc.redshiftfloatL(Lya)Ly{alpha} (1216{AA}) luminosity (10^42^erg/s)1e+35Wphys.luminosity;em.UVfloate_L(Lya)L(Lya) uncertainty1e+35Wstat.errorfloatLnu[0.4/47.5]? UV luminosity at 1500{AA} (L_{nu},1500{AA}_ in 10^28^erg/s/Hz) (2)1e+21W.Hz**-1phys.luminosityfloatnullablee_Lnu? Lnu uncertainty1e+21W.Hz**-1stat.errorfloatnullablebeta? the UV continuum slope ({beta})spect.indexfloatnullablee_beta? beta uncertaintystat.errorfloatnullableE(B-V)[0/0.82]? Dust reddeningmagphot.color.excessfloatnullablee_E(B-V)? E(B-V) uncertaintymagstat.errorfloatnullablef(Lya)? the escape fraction of Ly{alpha} photons (f_esc_(Ly{alpha})=the Ly{alpha} derived SFR to the extinction corrected UV SFR ratio)stat.fit.omcfloatnullableE_f(Lya)? Positive error on f(Lya)stat.error;stat.maxfloatnullablee_f(Lya)? Negative error on f(Lya)stat.errorfloatnullableEW0? Ly{alpha} equivalent width in {AA}0.1nmspect.line.eqWidthintnullablee_EW0? EW0 uncertainty0.1nmstat.errorintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar_RAPositions from Paper I (Cat. J/ApJS/192/5) (right ascension part)degpos.eq.ra;meta.main_DEPositions from Paper I (Cat. J/ApJS/192/5) (declination part)degpos.eq.dec;meta.main