J/ApJ/633/630ivo://CDS.VizieR/J/ApJ/633/630doi:10.26093/cds/vizier.16330630CDSWillott C.J.Delfosse X.Forveille T.Delorme P.Gwyn S.D.J.2006-12-23T08:39:38Z2006-12-23T09:38:23ZCDS support team

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

cds-question@unistra.frdwarf-starsquasarsinfrared-photometryWe present preliminary results of a new quasar survey being undertaken with multicolor optical imaging from the Canada-France-Hawaii Telescope. The current data consist of 3.83deg^2^ of imaging in the i' and z' filters to a 10{sigma} limit of z'<23.35. Near-infrared photometry of 24 candidate 5.7<z<6.4 quasars confirms them all to be low-mass stars, including two T dwarfs and four or five L dwarfs. Photometric estimates of the spectral type of the two T dwarfs are T3 and T6.2005ApJ...633..630Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/633/630CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/AJ/121/31 : High-redshift quasars in SDSS (Fan+, 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/633/630https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/633/630http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/633/630https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/633/630https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/633/630http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/633/630GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapInfrareddefaultJ/ApJ/633/630/table1Table of low-mass stars found in the search for high-z quasarsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFieldField designationmeta.id;meta.maincharCFHTLSName ([WDF2005] CFHTLS JHHMMSS.ss+DDMMSS.s in Simbad)meta.id;meta.maincharl_i'magUpper limit flag on i'magmeta.code.error;phot.mag;em.opt.Ichari'magi' magnitude (in the AB system) (1)magphot.mag;em.opt.Ifloate_i'mag? Error in i'magmagstat.error;phot.mag;em.opt.Ifloatnullablez'magz' magnitude (in the AB system) (1)magphot.mag;em.opt.Ifloate_z'magError in z'magmagstat.error;phot.mag;em.opt.Ifloatl_JmagUpper limit flag on Jmagmeta.code.error;phot.mag;em.IR.JcharJmagJ magnitude (in the AB system) (1)magphot.mag;em.IR.Jfloate_Jmag? Error in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableNote[Yes/No] Included in complete sample? (2)meta.notechar