J/ApJ/647/128ivo://CDS.VizieR/J/ApJ/647/128doi:10.26093/cds/vizier.16470128CDSErb D.K.2017-10-12T12:59:40Z2008-09-12T12:18:05ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopyultraviolet-photometryvisible-astronomyh-alpha-photometryUsing Halpha spectra of 114 rest-frame UV-selected galaxies at z~2, we compare inferred star formation rates (SFRs) with those determined from the UV continuum luminosity. After correcting for extinction using standard techniques based on the UV continuum slope, we find excellent agreement between the indicators, with <SFR_Ha_>=31M_{sun}_/yr and <SFR_UV_>=29M_{sun}_/yr. The agreement between the indicators suggests that the UV luminosity is attenuated by a typical factor of ~4.5 (ranging from no attenuation to a factor of 100 for the most obscured object in the sample), in good agreement with estimates of obscuration from X-ray, radio, and mid-IR data.2006ApJ...647..128Ehttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/647/128CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/300/303 : UV-selected galaxy redshift survey (Treyer+, 1998)J/ApJS/122/109 : Galaxy structural parameters (Takamiya+, 1999)J/ApJ/549/820 : H{alpha} flux of ACCG 114 galaxies (Couch+, 2001)J/A+A/379/798 : ELAIS H{alpha} emitting galaxies (Pascual+, 2001)J/ApJ/586/794 : Multiwavelength luminosities of galaxies (Bell, 2003)J/AJ/127/2002 : Star Formation Rate of NFGS galaxies (Kewley+, 2004)J/A+A/425/417 : Star formation rates of blue compact galaxies (Kong+, 2004)J/ApJ/604/141 : H{alpha} fluxes in Cl J0023+0423B galaxies (Finn+, 2004)J/ApJ/630/206 : H{alpha} data for 3 EDisCS galaxy clusters (Finn+, 2005)J/PASP/117/227 : Properties of 101 galaxies from the NFGS (Kewley+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/647/128https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/647/128http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/647/128https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/647/128https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/647/128http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/647/128GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/647/128/table (Star formation rates results in the observed galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/647/128/table?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/647/128/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/647/128/table?GETtext/xml+votable180.050000true13.470291712.39756940.0055555555555555566/9272 10383 11252 11424 11596 18271 18780 19036 19682 19717https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/647/128?format=asciiUVOpticaldefaultJ/ApJ/647/128/tableStar formation rates results in the observed galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject namemeta.id;meta.maincharn_Name[l] AGN (1)meta.notecharzRedshift from H{alpha} linesrc.redshiftfloatE(B-V)The E(B-V) extinction (2)magphot.color.excessfloatFHaObserved H{alpha} emission line flux in units of 10^-17^erg/s/cm^2^1e-20W.m**-2phot.flux;em.line.HalphafloatLHaObserved H{alpha} luminosity in units of 10^42^erg/s1e+35Wphys.luminosity;em.line.HalphafloatSFR0Uncorrected SFR from H{alpha} flux (3)solMass/yrphys.SFRintSFR1SFR from H{alpha} flux (4)solMass/yrphys.SFRintF1500Observed 1500 Angstrom magnitude (5)magphot.mag;em.UV.100-200nmfloatL1500Log of the 1500 Angstrom rest frame luminosity in units of erg/s/cm^2^/Hzlog(mW.m**-2.Hz**-1)phys.luminosity;em.UVfloatUSFR0Uncorrected SFR from UV magnitudesolMass/yrphys.SFRintUSFR1SFR from extinction-corrected UV magnitudesolMass/yrphys.SFRintSFR? The SFR from SED fittingsolMass/yrphys.SFRintnullableWHa? Rest frame H{alpha} equivalent width in Angstroms (6)0.1nmspect.line.eqWidth;em.line.Halphaintnullablen_WHa[m] Aperture correction not applied (7)meta.notecharSimbadNameSimbad column added by the CDSmeta.idcharRAJ2000Right ascension (J2000) (from Erb et al., 2006ApJ...646..107Epos.eq.ra;meta.mainDEJ2000Declination (J2000) (from Erb et al., 2006ApJ...646..107Epos.eq.dec;meta.main