J/ApJ/799/205ivo://CDS.VizieR/J/ApJ/799/205doi:10.26093/cds/vizier.17990205CDSBridge J.S.Gronwall C.Ciardullo R.Hagen A.Zeimann G.Malz A.I.,Acquaviva V.Schneider D.P.Drory N.Gebhardt K.Jogee S.2018-10-18T15:01:18Z2015-07-20T09:48:29ZCDS support team

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

cds-question@unistra.frgalaxiesspectroscopygalaxy-classification-systemssurveysredshiftedThe Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) pilot survey identified 284 [OII]{lambda}3727 emitting galaxies in a 169arcmin^2^ field of sky in the redshift range 0<z<0.57. This line flux limited sample provides a bridge between studies in the local universe and higher-redshift [OII] surveys. We present an analysis of the star formation rates (SFRs) of these galaxies as a function of stellar mass as determined via spectral energy distribution fitting. The [OII] emitters fall on the "main sequence" of star-forming galaxies with SFR decreasing at lower masses and redshifts. However, the slope of our relation is flatter than that found for most other samples, a result of the metallicity dependence of the [OII] star formation rate indicator. The mass-specific SFR is higher for lower mass objects, supporting the idea that massive galaxies formed more quickly and efficiently than their lower mass counterparts. This is confirmed by the fact that the equivalent widths of the [OII] emission lines trend smaller with larger stellar mass. Examination of the morphologies of the [OII] emitters reveals that their star formation is not a result of mergers, and the galaxies' half-light radii do not indicate evolution of physical sizes.2015ApJ...799..205Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/799/205CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/261 : GOODS initial results (Giavalisco+, 2004)J/ApJ/772/48 : Emission-line galaxies from PEARS. II. (Pirzkal+, 2013)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/ApJS/192/5 : Emission-line galaxies from HETDEX pilot survey (Adams+, 2011)J/ApJ/705/639 : Sizes of Lyman alpha emitters at z=3.1 (Bond+, 2009)J/ApJ/667/79 : Ly{alpha} emission-line galaxies at z=3.1 (Gronwall+, 2007)J/ApJ/659/162 : CAS parameters of 199 nearby galaxies (Taylor-Mager+, 2007)J/ApJS/172/456 : [OII] emitting gal. in COSMOS + SDF fields (Takahashi+, 2007)J/AJ/128/163 : Galaxy morphological classification (Lotz+, 2004)J/AJ/127/2002 : Star Formation Rate of NFGS galaxies (Kewley+, 2004)J/ApJS/147/1 : Classification of nearby galaxies (Conselice+, 2003)J/ApJ/481/49 : CFRS XIV. Field galaxies up to z=1 (Hammer+ 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/799/205https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/799/205http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/799/205https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/799/205https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/799/205http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/799/205GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/799/205/OIIgal (OII emitters: physical properties (table3) and morphologies (table4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/799/205/OIIgal?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/799/205/OIIgal?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/799/205/OIIgal?GETtext/xml+votable180.050000true35.2965-4.5236111110.0055555555555555566/11252 17691 23209 27258https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/799/205?format=asciiOpticaldefaultJ/ApJ/799/205/OIIgalOII emitters: physical properties (table3) and morphologies (table4)HPS[1/479] HPS identifiermeta.id;meta.mainintprimaryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlogM*[7.5/11.8] Log stellar masslog(solMass)phys.massfloatlogSFR[-1.1/2.1] Log star formation ratelog(solMass.yr**-1)meta.idfloatE(B-V)[0.003/0.9] The (B-V) color excessmagphot.color.excessfloatz[0.07/0.6] Redshift from Adams et al. 2011 (J/ApJS/192/5)src.redshiftfloatG[0.3/0.7] The Gini coefficient (1)meta.notefloatnullableM20[-2.5/-0.6] The M_20_ coefficient (1)stat.variancefloatnullableR50[0.5/9.4] Half-light radiuskpcphys.size.radiusfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharnullableNEDNED column added by the CDSmeta.ref.urlcharnullable_RAPositions from Adams+, 2011, J/ApJS/192/5 (right ascension part)degpos.eq.ra;meta.main_DEPositions from Adams+, 2011, J/ApJS/192/5 (declination part)degpos.eq.dec;meta.main