J/ApJ/708/661ivo://CDS.VizieR/J/ApJ/708/661doi:10.26093/cds/vizier.17080661CDSD'Andrea C.B.Sako M.Dilday B.Frieman J.A.Holtzman J.Kessler R.,Konishi K.Schneider D.P.Sollerman J.Wheeler J.C.Yasuda N.,Cinabro D.Jha S.Nichol R.C.Lampeitl H.Smith M.Atlee D.W.,Bassett B.Castander F.J.Goobar A.Miquel R.Nordin J.Ostman L.,Prieto J.L.Quimby R.Riess A.G.Stritzinger M.2020-06-02T12:42:36Z2012-03-01T13:27:07ZCDS support team

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

cds-question@unistra.frsupernovaevisible-astronomysloan-photometryspectroscopysurveysWe apply the Standardized Candle Method (SCM) for Type II Plateau supernovae (SNe II-P), which relates the velocity of the ejecta of a SN to its luminosity during the plateau, to 15 SNe II-P discovered over the three season run of the Sloan Digital Sky Survey-II Supernova Survey. The redshifts of these SNe - 0.027<z<0.144 - cover a range hitherto sparsely sampled in the literature; in particular, our SNe II-P sample contains nearly as many SNe in the Hubble flow (z>0.01) as all of the current literature on the SCM combined. We find that the SDSS SNe have a very small intrinsic I-band dispersion (0.22mag), which can be attributed to selection effects. When the SCM is applied to the combined SDSS-plus-literature set of SNe II-P, the dispersion increases to 0.29mag, larger than the scatter for either set of SNe separately. We show that the standardization cannot be further improved by eliminating SNe with positive plateau decline rates, as proposed in Poznanski et al. (2009ApJ...694.1067P). We thoroughly examine all potential systematic effects and conclude that for the SCM to be useful for cosmology, the methods currently used to determine the FeII velocity at day 50 must be improved, and spectral templates able to encompass the intrinsic variations of Type II-P SNe will be needed.2010ApJ...708..661Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/708/661CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/A+A/526/A28 : SDSS-II supernovae NTT and NOT spectroscopy (Oestman+, 2011)J/ApJS/185/32 : First-year SDSS-II SN results (Kessler+, 2009)J/AJ/136/2306 : SDSS-II Supernova survey, 2005 (Holtzman+, 2008)J/AJ/135/348 : SDSS-II SNe survey: search and follow-up (Sako+, 2008)J/AJ/135/1766 : Sloan Digital Sky Survey-II supernova survey (Zheng+, 2008)http://sdssdp62.fnal.gov/sdsssn/snlist_confirmed_updated.php : SDSS-II SNehttp://www.sdss.org/ : SDSS home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/708/661https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/708/661http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/708/661https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/708/661https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/708/661http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/708/661GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/708/661/sn (List of SNe with photometry and spectroscopy)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/708/661/sn?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/708/661/sn?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/708/661/sn?GETtext/xml+votable180.050000true340.6691670.8330560.005555555555555556Associated datahttps://cdsarc.cds.unistra.fr/assocdata/?obs_collection=J/ApJ/708/6616/12290 17405 17812 17820 17830 17831 17836 17841 17999 18001 18017 18023 18027 18028 18063 18068 18071 18073 18083 18086 18791 18795 18837 18860 18880 19097 19100 19457 23144 23190 30034 30038 30052 301002.2537631428488926e-19 5.046557045242342e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/708/661?format=asciiOpticaldefaultJ/ApJ/708/661/table1Rest-frame day 50 magnitudes of SNe II-P from the SDSS-II SN Survey (and FeII velocities for the 15 SCM from table 3)e_zRedshift uncertaintystat.error;src.redshiftfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNIAU name (YYYYaa) (except flagged) (1)meta.id;meta.maincharf_SN[a] a: SDSS-II SN numbermeta.codecharzRedshift (2)src.redshiftfloatBmagBessell B-band magnitude (Vega) (3)magphot.mag;em.opt.Bfloate_BmagBmag uncertaintymagstat.error;phot.mag;em.opt.BfloatVmagBessell V-band magnitude (Vega) (3)magphot.mag;em.opt.Vfloate_VmagVmag uncertaintymagstat.error;phot.mag;em.opt.VfloatRmagBessell R-band magnitude (Vega) (3)magphot.mag;em.opt.Rfloate_RmagRmag uncertaintymagstat.error;phot.mag;em.opt.RfloatImagBessell I-band magnitude (Vega) (3)magphot.mag;em.opt.Ifloate_ImagImag uncertaintymagstat.error;phot.mag;em.opt.IfloatgmagSDSS g-band AB magnitude (3)magphot.mag;em.opt.Bfloate_gmaggmag uncertaintymagstat.error;phot.mag;em.opt.BfloatrmagSDSS r-band AB magnitude (3)magphot.mag;em.opt.Rfloate_rmagrmag uncertaintymagstat.error;phot.mag;em.opt.RfloatimagSDSS i-band AB magnitude (3)magphot.mag;em.opt.Ifloate_imagimag uncertaintymagstat.error;phot.mag;em.opt.IfloatFeIIvel? FeII velocity ({nu}_FeII_) from table 3 (2)km/sspect.dopplerVelocintnullablee_FeIIvel? FeIIvel uncertainty from table 3 (2)km/sstat.errorintnullableJ/ApJ/708/661/snList of SNe with photometry and spectroscopyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Simbad hour of right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Simbad degree of declination (J2000)pos.eq.dec;meta.mainSmeta.ref.urlcharSDSS-IISDSS-II number (<SDSS-II SN NNNNN> in Simbad)meta.id;meta.mainintSNIAU SN designation (YYYYaa) if anymeta.idcharAsiagoLink to the Asiago Supernova Catalogue (Cat. B/sn)meta.ref.urlcharphotGet the photometry of this SNmeta.ref.urlcharSpplot of spectrum (or spectra)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar