J/ApJ/722/566ivo://CDS.VizieR/J/ApJ/722/566doi:10.26093/cds/vizier.17220566CDSLampeitl H.Smith M.Nichol R.C.Bassett B.Cinabro D.Dilday B.,Foley R.J.Frieman J.A.Garnavich P.M.Goobar A.Im M.Jha S.W.,Marriner J.Miquel R.Nordin J.Ostman L.Riess A.G.Sako M.,Schneider D.P.Sollerman J.Stritzinger M.2017-09-29T09:03:06Z2012-08-08T09:25:29ZCDS support team

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

cds-question@unistra.frsupernovaegalaxiesvisible-astronomysurveysWe present an analysis of the host galaxy dependences of Type Ia Supernovae (SNe Ia) from the full three year sample of the SDSS-II Supernova Survey. We re-discover, to high significance, the strong correlation between host galaxy type and the width of the observed SN light curve, i.e., fainter, quickly declining SNe Ia favor passive host galaxies, while brighter, slowly declining Ia's favor star-forming galaxies. We also find evidence (at between 2{sigma} and 3{sigma}) that SNe Ia are ~0.1+/-0.04mag brighter in passive host galaxies than in star-forming hosts, after the SN Ia light curves have been standardized using the light-curve shape and color variations. This difference in brightness is present in both the SALT2 and MCLS2k2 light-curve fitting methodologies. We see evidence for differences in the SN Ia color relationship between passive and star-forming host galaxies, e.g., for the MLCS2k2 technique, we see that SNe Ia in passive hosts favor a dust law of R_V_=1.0+/-0.2, while SNe Ia in star-forming hosts require R_V_=1.8^+0.2^_-0.4_. The significance of these trends depends on the range of SN colors considered. We demonstrate that these effects can be parameterized using the stellar mass of the host galaxy (with a confidence of >4{sigma}) and including this extra parameter provides a better statistical fit to our data. Our results suggest that future cosmological analyses of SN Ia samples should include host galaxy information.2010ApJ...722..566Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/722/566CatalogResearchIsServedByTAP 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/ApJ/713/1026 : SN Ia rate at redshift <~0.3 from SDSS-II (Dilday+, 2010)J/ApJS/185/32 : First-year SDSS-II SN results (Kessler+, 2009)J/ApJ/700/1097 : Light curve parameters of SN Ia (Hicken+, 2009)J/AJ/136/2306 : SDSS-II Supernova survey, 2005 (Holtzman+, 2008)J/AJ/135/1766 : Sloan Digital Sky Survey-II supernova survey (Zheng+, 2008)J/AJ/135/348 : SDSS-II SNe survey: search and follow-up (Sako+, 2008)J/ApJ/687/1201 : SN and LGRB locations in their host galaxies (Kelly+, 2008)J/PASP/117/773 : Classifications of SN host galaxies. III (van den Bergh+,https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/722/566https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/722/566http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/722/566https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/722/566https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/722/566http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/722/566GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/722/566/table2 (Host properties used in the main SALT2 (Guy et al. 2007A&A...466...11G) analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/722/566/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/722/566/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/722/566/table2?GETtext/xml+votable180.050000true46.79591.119988890.0055555555555555565/4441 6/0 12288 17662 17756 17761 17762 17763 17770 17806 17809 17814 17815 17818 17821 17825 17827 17828 17830 17831 17832 17837 17840 17856 17981 17983 18001 18008 18009 18011 18013 18014 18019 18020 18022 18026 18027 18028 18032 18062 18063 18066 18068 18070 18074 18075 18076 18083 18085 18086 18089 18092 18687 18749 18750 18751 18765 18769 18772 18774 18777 18781 18787 18794 18795 18796 18836 18849 18850 18852 18854 18858 18859 19029 19033 19034 19035 19041 19043 19044 19046 19047 19049 19050 19051 19086 19087 19091 19093 19097 19100 19101 19108 19109 19114 19115 19200 19202 19456 19457 23102 23185 23186 23190 23191 23196 23197 23205 23206 23209 23213 23214 23216 23234 30031 30033 30034 30035 30036 30037 30038 30044 36861 36863https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/722/566?format=asciiOpticaldefaultJ/ApJ/722/566/table2Host properties used in the main SALT2 (Guy et al. 2007A&A...466...11G) analysisSNIAU designation (YYYYaa)meta.idcharSDSS-IISN designation (<SDSS-II SN NNNNN>)meta.id;meta.mainintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainlogMLog of the stellar masslog(solMass)phys.massfloatE_logMUpper uncertainty in logMlog(solMass)stat.error;stat.maxfloate_logMLower uncertainty in logMlog(solMass)stat.errorfloatlogSFR? Log of the star formation rate (1)log(solMass.yr**-1)meta.idfloatnullableE_logSFR? Upper uncertainty in logSFRlog(solMass.yr**-1)stat.error;stat.maxfloatnullablee_logSFR? Lower uncertainty in logSFRlog(solMass.yr**-1)stat.error;phys.SFRfloatnullableclSN Ia classification basis: sp (spectrum) or lc (light-curve shape)meta.code;obscharHclHost classification: p (passive) or sf (star-forming galaxy)src.classcharS[r] r: Member of restricted sample (with tighter allowed ranges of c (color value) and x1 (stretch value))meta.codecharOCatCross-match within 5" with other SDSS-II SNe catalogsmeta.ref.urlintnullableSimbadSimbad column added by the CDSmeta.refchar