J/MNRAS/472/273ivo://CDS.VizieR/J/MNRAS/472/273doi:10.26093/cds/vizier.74720273CDSChildress M.J.Lidman C.Davis T.M.Tucker B.E.Asorey J.Yuan F.,Abbott T.M.C.Abdalla F.B.Allam S.Annis J.Banerji M.,Benoit-Levy A.Bernard S.R.Bertin E.Brooks D.Buckley-Geer E.,Burke D.L.Rosell A.CarneroCarollo D.Carrasco Kind M.,Carretero J.Castander F.J.Cunha C.E.Costa L.N.daD'Andrea C.B.,Doel P.Eifler T.F.Evrard A.E.Flaugher B.Foley R.J.Fosalba P.,Frieman J.Garcia-Bellido J.Glazebrook K.Goldstein D.A.Gruen D.,Gruendl R.A.Gschwend J.Gupta R.R.Gutierrez G.Hinton S.R.,Hoormann J.K.James D.J.Kessler R.Kim A.G.King A.L.Kovacs E.,Kuehn K.Kuhlmann S.Kuropatkin N.Lagattuta D.J.Lewis G.F.,Li T.S.Lima M.Lin H.Macaulay E.Maia M.A.G.Marriner J.,March M.Marshall J.L.Martini P.McMahon R.G.Menanteau F.,Miquel R.Moller A.Morganson E.Mould J.Mudd D.Muthukrishna D.,Nichol R.C.Nord B.Ogando R.L.C.Ostrovski F.Parkinson D.,Plazas A.A.Reed S.L.Reil K.Romer A.K.Rykoff E.S.Sako M.,Sanchez E.Scarpine V.Schindler R.Schubnell M.Scolnic I.D.,Sevilla-Noarbe N.Seymour R.Sharp M.Smith M.Soares-Santos F.,SobreiraSommer N.E.Spinka H.Suchyta E.Sullivan M.,Swanson M.E.C.Tarle G.Uddin S.A.Walker A.R.Wester W.Zhang B.R.(DES Collaboration)2024-08-17T20:20:52Z2018-03-27T15:00:59ZCDS support team

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

cds-question@unistra.frredshiftedspectroscopygalaxiescatalogsWe present results for the first three years of OzDES, a six-year program to obtain redshifts for objects in the Dark Energy Survey (DES) supernova fields using the 2dF fibre positioner and AAOmega spectrograph on the Anglo-Australian Telescope. OzDES is a multi-object spectroscopic survey targeting multiple types of targets at multiple epochs over a multi-year baseline, and is one of the first multi-object spectroscopic surveys to dynamically include transients into the target list soon after their discovery. At the end of three years, OzDES has spectroscopically confirmed almost 100 supernovae, and has measured redshifts for 17,000 objects, including the redshifts of 2,566 supernova hosts. We examine how our ability to measure redshifts for targets of various types depends on signal-to-noise, magnitude, and exposure time, finding that our redshift success rate increases significantly at a signal-to-noise of 2 to 3 per 1-Angstrom bin. We also find that the change in signal-to-noise with exposure time closely matches the Poisson limit for stacked exposures as long as 10 hours. We use these results to predict the redshift yield of the full OzDES survey, as well as the potential yields of future surveys on other facilities such as 4MOST, PFS, and MSE. This work marks the first OzDES data release, comprising 14,693 redshifts. OzDES is on target to obtain over 30,000 redshifts over the six-year duration of the survey, including a yield of approximately 5,700 supernova host-galaxy redshifts.2017MNRAS.472..273Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/472/273CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/472/273https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/472/273http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/472/273https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/472/273https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/472/273http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/472/273GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/472/273/ozdesdr1 (Positions, redshifts, redshifts quality flags)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/472/273/ozdesdr1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/472/273/ozdesdr1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/472/273/ozdesdr1?GETtext/xml+votable180.050000true35.55125-4.783971940.0055555555555555565/4417 4422 4436-4437 8847 8868 8983 8989 9026 6/17677 17679-17680 17682-17683 17686-17687 17692-17694 17701 17712-17713 17733 17735 17741 17752-17753 17756-17757 35382-35383 35385 35387 35476 35478 35480-35481 35925-35927 35931 35953 36098 36128-36129https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/472/273?format=asciidefaultJ/MNRAS/472/273/ozdesdr1Positions, redshifts, redshifts quality flagsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintOzDESOzDES object number (OzDES_NNNNNN)meta.id;meta.maincharRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainzRedshift (1)src.redshiftdoubleFlagRedshift quality flag (2)meta.code.errorinttypesObject type (3)src.classchar