J/ApJ/792/76ivo://CDS.VizieR/J/ApJ/792/76doi:10.26093/cds/vizier.17920076CDSBradley L.D.Zitrin A.Coe D.Bouwens R.Postman M.Balestra I.,Grillo C.Monna A.Rosati P.Seitz S.Host O.Lemze D.Moustakas J.,Moustakas L.A.Shu X.Zheng W.Broadhurst T.Carrasco M.Jouvel S.,Koekemoer A.Medezinski E.Meneghetti M.Nonino M.Smit R.Umetsu K.,Bartelmann M.Benitez N.Donahue M.Ford H.Infante L.,Jimenez-Teja Y.Kelson D.Lahav O.Maoz D.Melchior P.Merten J.,Molino A.2017-10-02T12:42:44Z2017-04-13T10:36:50ZCDS support team

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

cds-question@unistra.frgalaxy-clustersgravitational-lensinggalaxiesphotometryhst-photometryredshiftedWe utilize 16 band Hubble Space Telescope (HST) observations of 18 lensing clusters obtained as part of the Cluster Lensing And Supernova survey with Hubble (CLASH) Multi-Cycle Treasury program to search for z ~ 6-8 galaxies. We report the discovery of 204, 45, and 13 Lyman-break galaxy candidates at z ~ 6, z ~ 7, and z ~ 8, respectively, identified from purely photometric redshift selections. This large sample, representing nearly an order of magnitude increase in the number of magnified star-forming galaxies at z ~ 6-8 presented to date, is unique in that we have observations in four WFC3/UVIS UV, seven ACS/WFC optical, and all five WFC3/IR broadband filters, which enable very accurate photometric redshift selections. We construct detailed lensing models for 17 of the 18 clusters to estimate object magnifications and to identify two new multiply lensed z >~ 6 candidates. The median magnifications over the 17 clusters are 4, 4, and 5 for the z ~ 6, z ~ 7, and z ~ 8 samples, respectively, over an average area of 4.5 arcmin^2^ per cluster. We compare our observed number counts with expectations based on convolving "blank" field UV luminosity functions through our cluster lens models and find rough agreement down to ~27 mag, where we begin to suffer significant incompleteness. In all three redshift bins, we find a higher number density at brighter observed magnitudes than the field predictions, empirically demonstrating for the first time the enhanced efficiency of lensing clusters over field surveys. Our number counts also are in general agreement with the lensed expectations from the cluster models, especially at z ~ 6, where we have the best statistics.2014ApJ...792...76Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/792/76CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJS/199/25 : CLASH sources for MACS1149.6+2223 (Postman+, 2012)J/A+A/562/A86 : CLASH. Photometric + photo-z catalog (Jouvel+, 2014)J/ApJ/801/44 : HST lensing analysis of the CLASH sample (Zitrin+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/792/76https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/792/76http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/792/76https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/792/76https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/792/76http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/792/76GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/792/76/table1 (Observational Details for the Cluster Sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/792/76/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/792/76/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/792/76/table1?GETtext/xml+votable180.050000true42.014-3.52908330.005555555555555556Cone search capability for table J/ApJ/792/76/table4 (Lensed z~6 Candidates Identified Behind 17 CLASH Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/792/76/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/792/76/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/792/76/table4?GETtext/xml+votable180.050000true260.602645532.14697760.005555555555555556Cone search capability for table J/ApJ/792/76/table5 (Lensed z~7 Candidates Identified Behind 17 CLASH Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/792/76/table5?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/792/76/table5?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/792/76/table5?GETtext/xml+votable180.050000true260.612459332.14384290.005555555555555556Cone search capability for table J/ApJ/792/76/table6 (Lensed z~8 Candidates Identified Behind 17 CLASH Clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/792/76/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/792/76/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/792/76/table6?GETtext/xml+votable180.050000true260.607383332.14951750.005555555555555556Cone search capability for table J/ApJ/792/76/table7 (Lensed Candidates Identified Behind RXJ1532.9+3021)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/792/76/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/792/76/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/792/76/table7?GETtext/xml+votable180.050000true233.232469930.36925240.0055555555555555566/34 1065 6383 6441 6539 7904 9052 9476 9496 9498 12359 12772 13754 14387 23173 23221 25451 25675 26488 27075 27752 28448 34793 36846 46474 46496 48076 48423 490122.0401237512456292e-19 2.706461185444514e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/792/76?format=asciiOpticaldefaultJ/ApJ/792/76/table1Observational Details for the Cluster SampleSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster Namemeta.id;meta.maincharn_ClusterNotes on Cluster (1)meta.notecharAliasShortened cluster names used in the papermeta.idcharRAJ2000Rigth ascension (J2000) (2)pos.eq.ra;meta.mainn_RAJ2000[g] Note on position (3)meta.notecharDEJ2000Declination (J2000) (2)pos.eq.dec;meta.mainn_DEJ2000[g] Note on position (3)meta.notecharzCluster redshiftsrc.redshiftfloatE(B-V)Reddeningmagphot.color.excessfloatStart.DateObservation starting datetime.epochnullableEnd.DateObservation ending datetime.epochnullableJ/ApJ/792/76/table4Lensed z~6 Candidates Identified Behind 17 CLASH ClustersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (1)meta.id;meta.maincharf_IDFlag on ID (2)meta.codecharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainl_I814magLimit flag on I814magmeta.code.errorcharI814magThe HST I band AB magnitude; 0.814 micronsmagphot.mag;em.opt.Ifloate_I814mag? Uncertainty in I814magmagstat.error;phot.mag;em.opt.Ifloatnullablel_z850magLimit flag on z850magmeta.code.errorcharz850magThe HST z band AB magnitude; 0.850 micronsmagphot.mag;em.opt.Ifloate_z850mag? Uncertainty in z850magmagstat.error;phot.magfloatnullableY105mag? The HST Y band AB magnitude; 1.05 micronsmagphot.mag;em.IR.Jfloatnullablee_Y105mag? Uncertainty in Y105magmagstat.error;phot.magfloatnullableY110mag? The HST Y band AB magnitude; 1.10 micronsmagphot.mag;em.IR.Jfloatnullablee_Y110mag? Uncertainty in Y110magmagstat.error;phot.magfloatnullableJ125mag? The HST J band AB magnitude 1.25 micronsmagphot.mag;em.IR.Jfloatnullablee_J125mag? Uncertainty in J125magmagstat.error;phot.mag;em.IR.JfloatnullableJ140mag? The HST J band AB magnitude; 1.40 micronsmagphot.mag;em.IR.Jfloatnullablee_J140mag? Uncertainty in J140magmagstat.error;phot.mag;em.IR.JfloatnullableH160magThe HST H band AB magnitude; 1.60 micronsmagphot.mag;em.IR.Hfloate_H160magUncertainty in H160magmagstat.error;phot.mag;em.IR.HfloatzphotPhotometric redshift (3)src.redshiftfloatE_zphotUpper limit uncertainty in zphotstat.error;stat.maxfloate_zphotLower limit uncertainty in zphotstat.errorfloatl_muLimit flag on mumeta.code.errorcharmuMagnification (4)phot.mag;arith.ratiofloatJ/ApJ/792/76/table5Lensed z~7 Candidates Identified Behind 17 CLASH ClustersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (1)meta.id;meta.maincharf_IDFlag on ID (2)meta.codecharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainl_I814magLimit flag on I814magmeta.code.errorcharI814magThe HST I band AB magnitude; 0.814 micronsmagphot.mag;em.opt.Ifloate_I814mag? Uncertainty in I814magmagstat.error;phot.mag;em.opt.Ifloatnullablel_z850magLimit flag on z850magmeta.code.errorcharz850magThe HST z band AB magnitude; 0.850 micronsmagphot.mag;em.opt.Ifloate_z850mag? Uncertainty in z850magmagstat.error;phot.magfloatnullableY105mag? The HST Y band AB magnitude; 1.05 micronsmagphot.mag;em.IR.Jfloatnullablee_Y105mag? Uncertainty in Y105magmagstat.error;phot.magfloatnullableY110mag? The HST Y band AB magnitude; 1.10 micronsmagphot.mag;em.IR.Jfloatnullablee_Y110mag? Uncertainty in Y110magmagstat.error;phot.magfloatnullableJ125mag? The HST J band AB magnitude 1.25 micronsmagphot.mag;em.IR.Jfloatnullablee_J125mag? Uncertainty in J125magmagstat.error;phot.mag;em.IR.JfloatnullableJ140mag? The HST J band AB magnitude; 1.40 micronsmagphot.mag;em.IR.Jfloatnullablee_J140mag? Uncertainty in J140magmagstat.error;phot.mag;em.IR.JfloatnullableH160magThe HST H band AB magnitude; 1.60 micronsmagphot.mag;em.IR.Hfloate_H160magUncertainty in H160magmagstat.error;phot.mag;em.IR.HfloatzphotPhotometric redshift (3)src.redshiftfloatE_zphotUpper limit uncertainty in zphotstat.error;stat.maxfloate_zphotLower limit uncertainty in zphotstat.errorfloatl_muLimit flag on mumeta.code.errorcharmuMagnification (4)phot.mag;arith.ratiofloatJ/ApJ/792/76/table6Lensed z~8 Candidates Identified Behind 17 CLASH ClustersSimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (1)meta.id;meta.maincharf_IDFlag on ID (2)meta.codecharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainl_I814magLimit flag on I814magmeta.code.errorcharI814magThe HST I band AB magnitude; 0.814 micronsmagphot.mag;em.opt.Ifloate_I814mag? Uncertainty in I814magmagstat.error;phot.mag;em.opt.Ifloatnullablel_z850magLimit flag on z850magmeta.code.errorcharz850magThe HST z band AB magnitude; 0.850 micronsmagphot.mag;em.opt.Ifloate_z850mag? Uncertainty in z850magmagstat.error;phot.magfloatnullableY105mag? The HST Y band AB magnitude; 1.05 micronsmagphot.mag;em.IR.Jfloatnullablee_Y105mag? Uncertainty in Y105magmagstat.error;phot.magfloatnullableY110mag? The HST Y band AB magnitude; 1.10 micronsmagphot.mag;em.IR.Jfloatnullablee_Y110mag? Uncertainty in Y110magmagstat.error;phot.magfloatnullableJ125mag? The HST J band AB magnitude 1.25 micronsmagphot.mag;em.IR.Jfloatnullablee_J125mag? Uncertainty in J125magmagstat.error;phot.mag;em.IR.JfloatnullableJ140mag? The HST J band AB magnitude; 1.40 micronsmagphot.mag;em.IR.Jfloatnullablee_J140mag? Uncertainty in J140magmagstat.error;phot.mag;em.IR.JfloatnullableH160magThe HST H band AB magnitude; 1.60 micronsmagphot.mag;em.IR.Hfloate_H160magUncertainty in H160magmagstat.error;phot.mag;em.IR.HfloatzphotPhotometric redshift (3)src.redshiftfloatE_zphotUpper limit uncertainty in zphotstat.error;stat.maxfloate_zphotLower limit uncertainty in zphotstat.errorfloatl_muLimit flag on mumeta.code.errorcharmuMagnification (4)phot.mag;arith.ratiofloatJ/ApJ/792/76/table7Lensed Candidates Identified Behind RXJ1532.9+3021SimbadNameSimbad column added by the CDSmeta.idcharl_z850magLimit flag on z850magmeta.code.errorcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (1)meta.id;meta.maincharf_IDFlag on ID (2)meta.codecharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainl_I814magLimit flag on I814magmeta.code.errorcharI814magThe HST I band AB magnitude; 0.814 micronsmagphot.mag;em.opt.Ifloate_I814mag? Uncertainty in I814magmagstat.error;phot.mag;em.opt.Ifloatnullablez850magThe HST z band AB magnitude; 0.850 micronsmagphot.mag;em.opt.Ifloate_z850mag? Uncertainty in z850magmagstat.error;phot.magfloatnullableY105mag? The HST Y band AB magnitude; 1.05 micronsmagphot.mag;em.IR.Jfloatnullablee_Y105mag? Uncertainty in Y105magmagstat.error;phot.magfloatnullableY110mag? The HST Y band AB magnitude; 1.10 micronsmagphot.mag;em.IR.Jfloatnullablee_Y110mag? Uncertainty in Y110magmagstat.error;phot.magfloatnullableJ125mag? The HST J band AB magnitude 1.25 micronsmagphot.mag;em.IR.Jfloatnullablee_J125mag? Uncertainty in J125magmagstat.error;phot.mag;em.IR.JfloatnullableJ140mag? The HST J band AB magnitude; 1.40 micronsmagphot.mag;em.IR.Jfloatnullablee_J140mag? Uncertainty in J140magmagstat.error;phot.mag;em.IR.JfloatnullableH160magThe HST H band AB magnitude; 1.60 micronsmagphot.mag;em.IR.Hfloate_H160magUncertainty in H160magmagstat.error;phot.mag;em.IR.HfloatzphotPhotometric redshift (3)src.redshiftfloatE_zphotUpper limit uncertainty in zphotstat.error;stat.maxfloate_zphotLower limit uncertainty in zphotstat.errorfloatl_muLimit flag on mumeta.code.errorcharmuMagnification (4)phot.mag;arith.ratiofloat