J/ApJ/606/L25ivo://CDS.VizieR/J/ApJ/606/L25doi:10.26093/cds/vizier.16069025CDSBouwens R.J.Illingworth G.D.Thompson R.I.Blakeslee J.P.,Dickinson M.E.Broadhurst T.J.Eisenstein D.J.Fan X.Franx M.,Meurer G.Van Dokkum P.2005-09-02T18:47:04Z2005-09-02T18:46:19ZCDS support team

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

cds-question@unistra.frgalaxiesphotometryWe report on the i-dropouts detected in two exceptionally deep Advanced Camera for Surveys fields (B_435_, V_606_, i_775_, and z_850_ with 10{sigma} limits of 28.8, 29.0, 28.5, and 27.8, respectively) taken in parallel with the Ultra Deep Field Near-Infrared Camera and Multi-Object Spectrometer observations. Using an i-z>1.4 cut, we find 30 i-dropouts over 21-arcmin^2^ down to z_(850,AB)_=28.1, or 1.4 i-dropouts arcmin^-2^, with significant field-to-field variation (as expected from cosmic variance). This extends i-dropout searches some ~0.9mag further down the luminosity function than was possible in the Great Observatories Origins Deep Survey (GOODS) fields, yielding a ~7 times increase in surface density. An estimate of the size evolution for UV-bright objects is obtained by comparing the composite radial flux profile of the bright i-dropouts (z_(850,AB)_<27.2) with scaled versions of the Hubble Deep Field North and South U-dropouts.2004ApJ...606L..25Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/606/L25CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/258 : Hubble Ultra Deep Field Catalog (UDF) (STScI, 2004)J/ApJ/612/L93 : Candidates of z~5.5-7 galaxies in the HST-UDF (Yan+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/606/L25https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/606/L25http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/606/L25https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/606/L25https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/606/L25http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/606/L25GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/606/L25/table1 (z~6 objects from the UDF Parallel Fields)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/606/L25/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/606/L25/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/606/L25/table1?GETtext/xml+votable180.050000true53.17788333-27.948708330.0055555555555555566/35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/606/L25?format=asciiOpticaldefaultJ/ApJ/606/L25/table1z~6 objects from the UDF Parallel FieldsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintUDFPObject identification, N-NNNN-NNNN (1)charRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainzmagThe AB magnitude in the z bandmagfloate_zmagError in zmagmagfloatl_i-zLimit flag on i-zchari-zThe AB (i-z) colormagfloatsgThe star/galaxy separator (0: galaxy; 1: star)floatrhlHalf-light radiusarcsecfloatsampleSamples in which object is contained (2)char