J/A+A/561/A89ivo://CDS.VizieR/J/A+A/561/A89doi:10.26093/cds/vizier.35610089CDSAtek H.Kunth D.Schaerer D.Mas-Hesse J.M.Hayes M.Ostlin G.,Kneib J.P.2017-12-22T05:33:02Z2014-01-08T09:21:32ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyultraviolet-astronomyAmong the different observational techniques used to select high-redshift galaxies, the hydrogen recombination line Lyman-alpha (Ly{alpha}) is of particular interest because it gives access to the measurement of cosmological quantities such as the star formation rate (SFR) of distant galaxy populations. However, interpreting this line and calibrating such observables are still subject to serious uncertainties. In this context, it important to understand the mechanisms responsible for the attenuation of Ly{alpha} emission, and under what conditions the Ly{alpha} emission line can be used as a reliable star formation diagnostic tool. We used a sample of 24 Ly{alpha} emitters at z~0.3 with an optical spectroscopic follow-up to calculate the Ly{alpha} escape fraction and its dependence upon different physical properties. We also examined the reliability of Ly{alpha} as a SFR indicator. We combined these observations with a compilation of Ly{alpha} emitters selected at z=0-0.3 from the literature to assemble a larger sample.2014A&A...561A..89Ahttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/561/A89CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/680/1072 : Ly{alpha}-emitting galaxies at 0.2<z<0.35 (Deharveng+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/561/A89https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/561/A89http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/561/A89https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/561/A89https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/561/A89http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/561/A89GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/561/A89/table1 (Target information and emission line measurements for the GALEX sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/561/A89/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/561/A89/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/561/A89/table1?GETtext/xml+votable180.050000true53.785-28.04540.0055555555555555566/35382 35388-35390 35934-35935 35957https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/561/A89?format=asciiUVdefaultJ/A+A/561/A89/table1Target information and emission line measurements for the GALEX samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject name (1)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainzRedshift (2)src.redshiftfloatLyaLyman{alpha} line flux (10^-15^erg/cm^2^/s) (3)aW.m**-2phot.flux;spect.linefloat[OII]? [OII]3727 line flux (10^-15^erg/cm^2^/s)aW.m**-2phot.flux;spect.linefloatnullablee_[OII]? rms uncertainty on [OII]aW.m**-2stat.errorfloatnullableHbH{beta} line flux (10^-15^erg/cm^2^/s)aW.m**-2phot.flux;em.line.Hbeta;spect.linefloate_Hbrms uncertainty on HbaW.m**-2stat.errorfloat[OIII]? [OIII]5007 line flux (10^-15^erg/cm^2^/s)aW.m**-2phot.flux;em.line.OIII;spect.linefloatnullablee_[OIII]? rms uncertainty on [OIII]aW.m**-2stat.errorfloatnullableHaH{alpha} line flux (10^-15^erg/cm^2^/s)aW.m**-2phot.flux;em.line.Halpha;spect.linefloate_Harms uncertainty on HaaW.m**-2stat.errorfloat[NII]? [NII]6583 line flux (10^-15^erg/cm^2^/s)aW.m**-2phot.flux;spect.linefloatnullablee_[NII]? rms uncertainty on [NII]aW.m**-2stat.errorfloatnullablespPlot the spectrum given by spFilemeta.ref.urlcharspFileName of the file with spectrum in subdirectory spectmeta.id;meta.filecharphPlot the spectrum given by phFilemeta.ref.urlcharphFileName of the file with photometry in subdirectory photmeta.id;phot;meta.filecharSimbadSimbad column added by the CDSmeta.ref.urlchar