J/ApJ/803/34ivo://CDS.VizieR/J/ApJ/803/34doi:10.26093/cds/vizier.18030034CDSBouwens R.J.Illingworth G.D.Oesch P.A.Trenti M.Labbe I.,Bradley L.Carollo M.van Dokkum P.G.Gonzalez V.Holwerda B.,Franx M.Spitler L.Smit R.Magee D.2018-02-05T14:01:36Z2015-09-02T13:47:02ZCDS support team

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

cds-question@unistra.frsurveysgalaxiesinfrared-sourcesredshiftedhst-photometryThe remarkable Hubble Space Telescope (HST) data sets from the CANDELS, HUDF09, HUDF12, ERS, and BoRG/HIPPIES programs have allowed us to map the evolution of the rest-frame UV luminosity function (LF) from z~10 to z~4. We develop new color criteria that more optimally utilize the full wavelength coverage from the optical, near-IR, and mid-IR observations over our search fields, while simultaneously minimizing the incompleteness and eliminating redshift gaps. We have identified 5859, 3001, 857, 481, 217, and 6 galaxy candidates at z~4, z~5, z~6, z~7, z~8, and z~10, respectively, from the ~1000arcmin^2^ area covered by these data sets. This sample of >10000 galaxy candidates at z>=4 is by far the largest assembled to date with HST. The selection of z~4-8 candidates over the five CANDELS fields allows us to assess the cosmic variance; the largest variations are at z>=7. Our new LF determinations at z~4 and z~5 span a 6 mag baseline and reach to -16 AB mag. These determinations agree well with previous estimates, but the larger samples and volumes probed here result in a more reliable sampling of >L_{star}_ galaxies and allow us to reassess the form of the UV LFs. Our new LF results strengthen our earlier findings to 3.4{sigma} significance for a steeper faint-end slope of the UV LF at z>4, with {alpha} evolving from {alpha}=-1.64+/-0.04 at z~4 to {alpha}=-2.06+/-0.13 at z~7 (and {alpha}=-2.02+/-0.23 at z~8), consistent with that expected from the evolution of the halo mass function. We find less evolution in the characteristic magnitude M^*^ from z~7 to z~4 the observed evolution in the LF is now largely represented by changes in {phi}_{star}_. No evidence for a non-Schechter-like form to the z~4-8 LFs is found. A simple conditional LF model based on halo growth and evolution in the M/L ratio ({alpha}(1+z}^-1.5^) of halos provides a good representation of the observed evolution.2015ApJ...803...34Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/803/34CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/268 : DEEP2 Redshift Survey, Data Release 4 (Matthews+ 2013)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)II/318 : GOODS Source Catalogs release r2.0z (Giavalisco+ 2008)II/284 : COSMOS Multi-Wavelength Photometry Catalog (Capak+, 2007)II/261 : GOODS initial results (Giavalisco+, 2004)J/A+A/570/A11 : The Hawk-I UDS and GOODS Survey (HUGS) (Fontana+, 2014)J/AJ/148/13 : Redshifts of 65 CANDELS supernovae (Rodney+, 2014)J/MNRAS/440/2810 : Galaxy luminosity function at z =~ 7 (Bowler+, 2014)J/ApJ/780/34 : H_160_-selected galaxies in the HUDF (Lundgren+, 2014)J/ApJS/207/24 : GOODS-S CANDELS multiwavelength catalog (Guo+, 2013)J/MNRAS/432/2696 : Galaxy luminosity function at z = 7-9 (McLure+, 2013)J/ApJS/206/10 : CANDELS multiwavelength catalog (Galametz+, 2013)J/ApJ/769/80 : Spitzer/IRAC observations of five deep fields (Ashby+, 2013)J/MNRAS/428/1128 : UDS/COSMOS HiZELS galaxies (Sobral+, 2013)J/ApJ/756/164 : UV galaxies in CANDELS from z=8 to z=4 (Finkelstein+, 2012)J/ApJ/754/83 : UV continuum for z~4-7 star-forming gal. (Bouwens+, 2012)J/A+A/544/A156 : UltraVISTA Catalogue Release DR1 (McCracken+, 2012)J/ApJ/742/111 : Extreme emission-line gal. in CANDELS (van der Wel+, 2011)J/ApJ/738/69 : SEDs of galaxies at 3.8<z<5 in GOODS (Shim+, 2011)J/ApJ/695/1591 : Spectrophotometry in PEARS fields (Pirzkal+, 2009)J/ApJS/176/1 : Subaru/XMM-Newton deep survey (SXDS). II. (Furusawa+, 2008)J/ApJ/653/53 : z~6 galaxies UV luminosity function (Bouwens+, 2006)J/AJ/132/1729 : HUDF BVI-dropout sources (Beckwith+, 2006)J/AJ/132/926 : Galaxies in the Hubble Ultra Deep Field (Coe+, 2006)J/ApJ/613/200 : Hubble Higher z Supernova Search, HHZSS (Strolger+, 2004)J/ApJ/612/L93 : Candidates of z~5.5-7 galaxies in the HST-UDF (Yan+, 2004)J/ApJ/606/L25 : Hubble Ultra Deep Parallel Fields (Bouwens+, 2004)J/ApJ/600/L99 : Colours of z~6 galaxies in GOODS (Dickinson+, 2004)J/AJ/127/180 : The Hawaii Hubble Deep Field North (Capak+, 2004)J/ApJ/519/1 : Lyman-break galaxies at z {>~} 4 (Steidel+, 1999)J/MNRAS/300/303 : UV-selected galaxy redshift survey (Treyer+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/803/34https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/803/34http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/803/34https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/803/34https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/803/34http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/803/34GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/803/34/table3 (A complete list of the sources included in our z~4, z~5, z~6, z~7, z~8, and z~10 samples)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/803/34/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/803/34/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/803/34/table3?GETtext/xml+votable180.050000true53.27225-27.87297220.0055555555555555566/6021 6081 6223 6235 6459 8303 10659 11208 11252 11398 11425 11435 12644 17679 17690 17990 25132 26189 27258 33950 35935https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/803/34?format=asciiInfrareddefaultJ/ApJ/803/34/table3A complete list of the sources included in our z~4, z~5, z~6, z~7, z~8, and z~10 samplesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDSource identifiermeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainF160W[22.5/31] Measured HST F160W-band AB magnitude (H_160_)magphot.mag;em.IR.Hfloatzset[4/10] Sample number (1)meta.idintdset[2/10] Data set number (2)meta.idintzphot[2.5/10.2] Photometric redshift as estimated by EAZY (3)src.redshiftfloatf_zphot[*] redshift possibly lower (4)meta.codecharOCatSources within 1" from GOODS (Giavalisco+, 2004, II/261 and 2008, II/318); Lundgren+, 2014, J/ApJ/780/34; Galametz+, 2013, J/ApJS/206/10 and Coe+, 2006, J/AJ/132/926meta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.ref.urlchar