J/ApJ/519/1ivo://CDS.VizieR/J/ApJ/519/1doi:10.26093/cds/vizier.15190001CDSSteidel C.C.Adelberger K.L.Giavalisco M.Dickinson M.Pettini M.2022-09-30T13:50:23Z2000-03-25T20:14:11ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryredshiftedspectroscopyWe present initial results of a survey for star-forming galaxies in the redshift range 3.8{<~}z{<~}4.5. This sample consists of a photometric catalog of 244 galaxies culled from a total solid angle of 0.23deg^2^ to an apparent magnitude of I_AB_=25.0. Spectroscopic redshifts in the range 3.61{<~}z{<~}4.81 have been obtained for 48 of these galaxies; their median redshift is <z>=4.13. Selecting these galaxies in a manner entirely analogous to our large survey for Lyman-break galaxies at smaller redshift (2.7{<~}z{<~}3.4) allows a relatively clean differential comparison between the populations and integrated luminosity density at these two cosmic epochs. Over the same range of UV luminosity, the spectroscopic properties of the galaxy samples at z{~}4 and z{~}3 are indistinguishable, as are the luminosity function shapes and the total integrated UV luminosity densities [{rho}_UV_(z=3)/{rho}_UV_(z=4)=1.1{+/-}0.3].1999ApJ...519....1Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/519/1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/519/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/519/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/519/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/519/1https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/519/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/519/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/519/1/table1 (z{>=}4 Lyman-break galaxy fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/519/1/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/519/1/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/519/1/table1?GETtext/xml+votable180.050000true13.3487512.5666670.005555555555555556Cone search capability for table J/ApJ/519/1/table2 (Lyman-break candidate spectroscopic results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/519/1/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/519/1/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/519/1/table2?GETtext/xml+votable180.050000true13.388541712.53536110.0055555555555555566/5063 8644 11252 19033 19036 19397 19717 31479https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/519/1?format=asciidefaultJ/ApJ/519/1/table1z{>=}4 Lyman-break galaxy fieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField nameobs.fieldcharRAJ2000? Right Ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Declination (J2000)pos.eq.dec;meta.mainnullableArea[40/828] Field Areaarcsec**-2phys.angSizeintNCand[13/244] Number of candidatesmeta.numberintAfterNNumber of candidates after applying the (R-I){<=}0.6 and I{>=}2 3 criteriameta.numberintSpecZ[2/48] Number of spectroscopic redshifts of z{~}4 galaxiesmeta.numberintAfterSNumber of spectroscopic redshifts after application of addition color and magnitude criteriameta.numberintInterNumber of interloper galaxies (z{<<}4)meta.numberintAfterI[0/12] Number of interloper galaxies after applied criteriameta.numberintf_Field[t] Indicates row contains the totals for all fields (no position for the totals)meta.codecharJ/ApJ/519/1/table2Lyman-break candidate spectroscopic resultsSimbadNameSimbad column added by the CDSmeta.idcharnullablel_G-RLimit flag on R-Imeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject name (see table1.dat for field names)meta.id;meta.maincharRAJ2000Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainImag[21/25] I band magnitude in the AB system of Oke+ (1983ApJ...266..713O)magphot.mag;em.opt.IfloatR-I[-0.5/1] (R-I) color in the AB systemmagphot.color;em.opt.R;em.opt.IfloatG-R[2/4.01] (G-R) color in the AB systemmagphot.color;em.opt.B;em.opt.Rfloatz[0/4.815] Redshiftsrc.redshiftfloatn_Name[ci] Type of galaxy (1)meta.notechar