J/ApJ/648/7ivo://CDS.VizieR/J/ApJ/648/7doi:10.26093/cds/vizier.16480007CDSKashikawa N.Shimasaku K.Malkan M.A.Doi M.Matsuda Y.Ouchi M.,Taniguchi Y.Ly C.Nagao T.Iye M.Motohara K.Murayama T.,Murozono K.Nariai K.Ohta K.Okamura S.Sasaki T.Shioya Y.,Umemura M.2007-11-24T21:42:35Z2007-11-24T22:38:37ZCDS support team

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

cds-question@unistra.frsurveysredshiftedWe report an extensive search for Ly{alpha} emitters (LAEs) at z=6.5 in the Subaru Deep Field. Subsequent spectroscopy with Subaru and Keck identified eight more LAEs, giving a total of 17 spectroscopically confirmed LAEs at z=6.5. Based on this spectroscopic sample of 17, complemented by a photometric sample of 58 LAEs, we have derived a more accurate Ly{alpha} luminosity function of LAEs at z=6.5, which reveals an apparent deficit at the bright end of ~0.75mag fainter L*, compared with that observed at z=5.7. The difference in the LAE luminosity functions between z=5.7 and 6.5 is significant at the 3{sigma} level, which is reduced to 2{sigma} when cosmic variance is taken into account. This result may imply that the reionization of the universe has not been completed at z=6.5. We found that the spatial distribution of LAEs at z=6.5 was homogeneous over the field. We discuss the implications of these results for the reionization of the universe.2006ApJ...648....7Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/648/7CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/PASJ/57/881 : Imaging of high-redshift Lyman alpha emitters (Yamada+, 2005)J/A+A/431/793 : Ly-alpha emitters around MRC 0316-257 (Venemans+, 2005)J/PASJ/57/165 : Ly{alpha} emitters in the SUBARU Deep Field (Taniguchi+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/648/7https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/648/7http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/648/7https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/648/7https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/648/7http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/648/7GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/648/7/table2 (Spectroscopic Properties of z=6.5 LAEs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/648/7/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/648/7/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/648/7/table2?GETtext/xml+votable180.050000true201.04527.3244440.0055555555555555566/10297 10298 10299https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/648/7?format=asciiOpticaldefaultJ/ApJ/648/7/table2Spectroscopic Properties of z=6.5 LAEsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[TAN2005]Sequential numbermeta.recordintSDFSDF designation (JHHMMSS.s+DDMMSS)meta.idcharzRedshift (1)src.redshiftfloatF(Lya)Observed line flux in Ly{alpha} (2)1e-21W.m**-2phot.flux;em.UVfloatL(Lya)Estimated Ly{alpha} luminosity (3)1e+35Wphys.luminosity;em.UVfloatSFR(Lya)Ly{alpha} Stellar Formation Rate (3)(4)solMass/yrarith.rate;phys.SFRfloatFWHMFWHM in Angstroem (5)0.1nmspect.line.widthfloatFWHM2FWHM in km/s (5)km/sspect.line.widthintSw? Weighted skewness (quantifies the asymmetry of the emission lines)0.1nmmeta.notefloatnullablee_Swrms uncertainty on Sw0.1nmstat.errorfloatObs[FD] Observed with FOCAS (F) or DEIMOS (D)meta.id;instrchar_RARight ascension (derived from SDF) for Eq=J2000degpos.eq.ra;meta.main_DEDeclination (derived from SDF) for Eq=J2000degpos.eq.dec;meta.main