J/A+A/529/L4ivo://CDS.VizieR/J/A+A/529/L4doi:10.26093/cds/vizier.35299004CDSChotard N.Gangler E.Aldering G.Antilogus P.Aragon C.Bailey S.,Baltay C.Bongard S.Buton C.Canto A.Childress M.Copin Y.,Fakhouri H.K.Hsiao E.Y.Kerschhaggl M.Kowalski M.Loken S.,Nugent P.Paech K.Pain R.Pecontal E.Pereira R.Perlmutter S.,Rabinowitz D.Runge K.Scalzo R.Smadja G.Tao C.Thomas R.C.,Weaver B.A.Wu C.(The Nearby Supernova Factory)2017-12-06T07:38:01Z2011-09-20T16:34:06ZCDS support team

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

cds-question@unistra.frsupernovaephotometryline-intensitiesWe employ 76 type Ia supernovae (SNe Ia) with optical spectrophotometry within 2.5 days of B-band maximum light obtained by the Nearby Supernova Factory to derive the impact of Si and Ca features on the supernovae intrinsic luminosity and determine a dust reddening law. We use the equivalent width of SiII {lambda}4131 in place of the light curve stretch to account for first-order intrinsic luminosity variability. The resulting empirical spectral reddening law exhibits strong features that are associated with CaII and SiII {lambda}6355. After applying a correction based on the CaII H&K equivalent width we find a reddening law consistent with a Cardelli extinction law. Using the same input data, we compare this result to synthetic rest-frame UBVRI-like photometry to mimic literature observations.2011A&A...529L...4Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/529/L4CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/529/L4https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/529/L4http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/529/L4https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/529/L4https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/529/L4http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/529/L4GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/529/L4/table1 (Supernovae used in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/529/L4/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/529/L4/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/529/L4/table1?GETtext/xml+votable180.050000true340.5417519.99455560.0055555555555555566/1593 11287 13572 16568 17237 17340 17840 18017 18753 19187 19241 19283 19387 19848 20140 21857 26563https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/529/L4?format=asciiOpticaldefaultJ/A+A/529/L4/table1Supernovae used in this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSupernova namemeta.id;meta.maincharDiscDiscovery (1)meta.ref;pos.framecharzcmbRedshift (2)src.redshiftfloatDMUSynthetic U magnitude after phase correctionmagphot.mag;arith.difffloate_DMUrms uncertainty on DMUmagstat.errorfloatDMBSynthetic B magnitude after phase correctionmagphot.mag;arith.difffloate_DMBrms uncertainty on DMBmagstat.errorfloatDMVSynthetic V magnitude after phase correctionmagphot.mag;arith.difffloate_DMVrms uncertainty on DMVmagstat.errorfloatDMRSynthetic R magnitude after phase correctionmagphot.mag;arith.difffloate_DMRrms uncertainty on DMRmagstat.errorfloatDMISynthetic I magnitude after phase correctionmagphot.mag;arith.difffloate_DMIrms uncertainty on DMImagstat.errorfloatx1SALT2 fit parameter x1stat.fit.paramfloate_x1rms uncertainty on x1stat.errorfloatcSALT2 fit parameter cstat.fit.paramfloate_crms uncertainty on cstat.errorfloatW(Si)SiII {lambda}4131 equivalent width0.1nmspect.line.eqWidthfloate_W(Si)rms uncertainty on W(Si)0.1nmstat.errorfloatW(Ca)Ca II H&K equivalent width0.1nmspect.line.eqWidth;em.IR.Hfloate_W(Ca)rms uncertainty on W(Ca)0.1nmstat.errorfloatPhasePhase (days after maximum)dtime.agefloate_Phaserms uncertainty on Phasedstat.error;time.phasefloatSimbadSimbad column added by the CDSchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.mainnullable_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainnullable