J/ApJ/745/74ivo://CDS.VizieR/J/ApJ/745/74doi:10.26093/cds/vizier.17450074CDSFolatelli G.Phillips M.M.Morrell N.Tanaka M.Maeda K.Nomoto K.,Stritzinger M.Burns C.R.Hamuy M.Mazzali P.Boldt L.Campillay A.,Contreras C.Gonzalez S.Roth M.Salgado F.Freedman W.L.Madore B.F.,Persson S.E.Suntzeff N.B.2017-09-29T09:02:37Z2013-08-08T08:47:45ZCDS support team

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

cds-question@unistra.frsupernovaespectroscopyline-intensitiesThe presence of unburned material in the ejecta of normal Type Ia supernovae (SNe Ia) is investigated using early-time spectroscopy obtained by the Carnegie Supernova Project. The tell-tale signature of pristine material from a C+O white dwarf progenitor star is the presence of carbon, as oxygen is also a product of carbon burning. The most prominent carbon lines in optical spectra of SNe Ia are expected to arise from CII. We find that at least 30% of the objects in the sample show an absorption at {approx}6300{AA} which is attributed to CII{lambda}6580. An alternative identification of this absorption as H{alpha} is considered to be unlikely. These findings imply a larger incidence of carbon in SNe Ia ejecta than previously noted.2012ApJ...745...74Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/745/74CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/AJ/142/156 : The CSP (DR2): photometry of SNe Ia (Stritzinger+, 2011)J/AJ/139/519 : Carnegie supernova project. SNe Ia (Contreras+, 2010)J/AJ/139/120 : Low-redshift Type-Ia supernovae (Folatelli+, 2010)J/A+A/500/L17 : Spectral flux ratio of SN Ia (Bailey+, 2009)J/MNRAS/377/1531 : Optical + IR photometry of SN 2004eo (Pastorello+, 2007)J/ApJ/645/488 : SN type Ia luminosities (Wang+, 2006)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/745/74https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/745/74http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/745/74https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/745/74https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/745/74http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/745/74GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/745/74/table1 (Sample of SNe Ia)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/745/74/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/745/74/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/745/74/table1?GETtext/xml+votable180.050000true30.5532083-0.09763890.0055555555555555566/248 4114 4577 4684 4807 4966 8341 8667 12455 17207 17340 17817 17818 18011 18016 18214 19051 19581 20140 21857 22599 23013 23023 23157 23193 23219 23294 25079 25141 25333 25769 25960 27348 27491 27761 27910 28035 28075 34493 34534 36131 36201 36805 36841 36919 37299 39627 39836 39863 44359 44660https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/745/74?format=asciiOpticaldefaultJ/ApJ/745/74/table1Sample of SNe Iao_SNNumber of spectra in table2meta.numberintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN name (YYYYaa)meta.id;meta.maincharprimaryEp1[-11.9,0.3] Epoch of the first spectroscopic observation relative to B-band maximum lightdtime.epochfloatC2CII detection type (G1)src.classcharBmag[12.241,18.447] B-band magnitude (1)magphot.mag;em.opt.Bfloate_Bmag[0.005,0.096] Bmag uncertaintymagstat.error;phot.mag;em.opt.BfloatB-Vmax[-0.157,1.196] Maximum B-V color index (2)magphot.color;em.opt.B;em.opt.Vfloate_B-Vmax[0.008,0.136] B-Vmax uncertaintymagstat.error;phot.color;em.opt.BfloatDm15[0.59,1.97] observed decline rate {Delta}m_15_(B)magsrc.var.amplitudefloate_Dm15[0.01,0.3] Dm15 uncertaintymagstat.errorfloatE(B-V)[-0.147,1.21]? host galaxy B-V color excessmagphot.color.excessfloatnullablee_E(B-V)[0.051,0.145]? E(B-V) uncertaintymagstat.errorfloatnullablen_E(B-V)[Y/ ] Low reddening sample? (3)meta.notecharzhelio[0.00488,0.07943] NED heliocentric redshiftsrc.redshiftdoubleBMag[-19.68,-15.69]? B-band absolute peak magnitudemagphot.mag;em.opt.B;stat.maxfloatnullablee_BMag[0.05,0.22]? BMag uncertaintymagstat.error;phot.mag;em.opt.BfloatnullableDBMag[-0.61,0.75]? B-band Hubble residual (4)magstat.fit.residualfloatnullablee_DBMag[0.06,0.41]? DBMag uncertaintymagstat.error;phot.magfloatnullableSimbadSimbad column added by the CDSmeta.refchar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.mainJ/ApJ/745/74/table2List of pre-maximum spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova identification (YYYYaa)meta.id;meta.maincharDateUT Date of the observationtime.epoch;obsnullableFlag[d] Spectrum corrected to match photometry (1)meta.code.errorcharJDJulian Date of the observation (JD-2400000)dtime.epochdoublePhasePhase; days since B-band maximum lightdtime.phasefloatlam.0Starting wavelength range; in Angstroms0.1nminstr.bandwidthintlam.1Ending wavelength range; in Angstroms0.1nminstr.bandwidthintRes? Spectral resolution; in Angstroms (2)0.1nmspect.resolutionfloatnullableC2[N QN F SC] Type of CII 6300{AA} feature (G1)src.classcharl_pWThe 3{sigma} limit on pWmeta.code.errorcharpW? Pseudo-equivalent width of ~630nm absorption; in Angstroms0.1nmspect.line.eqWidthfloatnullablee_pW? Uncertainty in pW0.1nmstat.errorfloatnullableRef? Reference (3)meta.ref;pos.frameintnullable