J/ApJ/668/839ivo://CDS.VizieR/J/ApJ/668/839doi:10.26093/cds/vizier.16680839CDSRyan R.E JrHathi N.P.Cohen S.H.Malhotra S.Rhoads J.,Windhorst R.A.Budavari T.Pirzkal N.Xu C.Panagia N.Moustakas L.A.,Di Serego Alighieri S.Yan H.2017-12-12T14:44:45Z2009-10-01T08:44:15ZCDS support team

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

cds-question@unistra.frsurveysgalaxiesphotometryredshiftedWe present a catalog of spectrophotometric redshifts for 1308 galaxies from the Grism ACS Program for Extragalactic Science (GRAPES) observations with the Hubble Space Telescope. These low-resolution spectra between 6000{AA} and 9500{AA} are supplemented with U, J, H, and Ks data from various facilities, resulting in redshifts computed with ~40 spectral bins per galaxy. For 75 galaxies in the range 0.5<z<1.5 with spectroscopic redshifts, the standard deviation in the fractional error in 1+z is 0.037. With this catalog, we compute the B-band luminosity function in this redshift range from 72 galaxies. Due to the depth of the GRAPES survey, we are able to accurately constrain the faint-end slope by going to MB~-18mag at z=1.0+/-0.2, nearly 2mag fainter than previous studies. The faint-end slope is alpha=-1.32+/-0.07. When compared to numerous published values at various redshifts, we find strong evidence for a steepening of the faint-end slope with redshift, which is expected in the hierarchical formation scenario of galaxies.2007ApJ...668..839Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/668/839CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/258 : Hubble Ultra Deep Field Catalog (UDF) (STScI, 2004)J/AJ/132/1729 : Hubble Ultra Deep Field BVI-dropout sources (Beckwith+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/668/839https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/668/839http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/668/839https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/668/839https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/668/839http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/668/839GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/668/839/table2 (Representative Catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/668/839/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/668/839/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/668/839/table2?GETtext/xml+votable180.050000true53.165417-27.8284720.0055555555555555566/35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/668/839?format=asciiOpticaldefaultJ/ApJ/668/839/table2Representative CatalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintUDFHubble Ultra Deep Field identification (1)meta.id;meta.mainintXposThe X pixel coordinatepixpos.cartesian.xfloatYposThe Y pixel coordinatepixpos.cartesian.yfloatRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maini'magThe i' band AB magnitudemagphot.mag;em.opt.Ifloate_i'magThe error in i'magmagstat.error;phot.mag;em.opt.IfloatbetaThe aperture correction (2)instr.paramfloatzphPhotometric redshiftsrc.redshiftfloatSpT[1/8] HyperZ template type (3)meta.codeintAgeEstimated AgeGyrtime.agefloatBMAGAbsolute B band AB magnitudemagphys.magAbs;em.opt.BfloatSimbadSimbad column added by the CDSchar