J/ApJ/731/120ivo://CDS.VizieR/J/ApJ/731/120doi:10.26093/cds/vizier.17310120CDSMandel K.S.Narayan G.Kirshner R.P.2017-06-01T08:52:41Z2012-11-30T15:27:59ZCDS support team

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

cds-question@unistra.frsupernovaephotometryredshiftedastronomical-modelsextinctionWe have constructed a comprehensive statistical model for Type Ia supernova (SN Ia) light curves spanning optical through near-infrared (NIR) data. A hierarchical framework coherently models multiple random and uncertain effects, including intrinsic supernova (SN) light curve covariances, dust extinction and reddening, and distances. An improved BayeSN Markov Chain Monte Carlo code computes probabilistic inferences for the hierarchical model by sampling the global probability density of parameters describing individual SNe and the population. We have applied this hierarchical model to optical and NIR data of 127 SNe Ia from PAIRITEL, CfA3, Carnegie Supernova Project, and the literature. We find an apparent population correlation between the host galaxy extinction AV and the ratio of total-to-selective dust absorption RV. For SNe with low dust extinction, A_V_<~0.4, we find R_V_~2.5-2.9, while at high extinctions, A_V_>~1, low values of R_V_<2 are favored. The NIR luminosities are excellent standard candles and are less sensitive to dust extinction. They exhibit low correlation with optical peak luminosities, and thus provide independent information on distances. The combination of NIR and optical data constrains the dust extinction and improves the predictive precision of individual SN Ia distances by about 60%. Using cross-validation, we estimate an rms distance modulus prediction error of 0.11mag for SNe with optical and NIR data versus 0.15mag for SNe with optical data alone. Continued study of SNe Ia in the NIR is important for improving their utility as precise and accurate cosmological distance indicators.2011ApJ...731..120Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/731/120CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/ApJS/200/12 : CfA4: light curves for 94 type Ia SNe (Hicken+, 2012)J/A+A/523/A7 : Light curves of type Ia supernovae in SNLS (Guy+, 2010)J/ApJS/190/418 : Light curves for 165 SNe (Ganeshalingam+, 2010)J/ApJ/700/331 : Light curves of type Ia supernovae (CfA3) (Hicken+, 2009)J/ApJ/700/1097 : Light curve parameters of SN Ia (Hicken+, 2009)J/MNRAS/384/107 : VRIJHK photometry of SN 2002cv (Elias-Rosa+, 2008)J/ApJ/689/377 : SNe Ia as NIR standard candles from PAIRITEL (Wood-Vasey+,J/AJ/136/2306 : SDSS-II Supernova survey, 2005 (Holtzman+, 2008)J/MNRAS/376/1301 : UBVRI light-curves of SN 2005cf (Pastorello+, 2007)J/ApJ/659/122 : Improved distances to type Ia supernovae (Jha+, 2007)J/AJ/131/527 : UBVRI light curves of 44 type Ia supernovae (Jha+, 2006)J/MNRAS/369/1880 : Photometry of SN 2003cg (Elias-Rosa+, 2006)J/A+A/437/789 : Restframe I-band light curves of SN Ia (Nobili+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/731/120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/731/120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/731/120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/731/120https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/731/120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/731/120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/731/120/sncat (Apparent light curve and dust estimates for individual SN Ia and distance modulus predictions)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/731/120/sncat?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/731/120/sncat?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/731/120/sncat?GETtext/xml+votable180.050000true161.691708311.83541670.0055555555555555566/248 928 1700 2254 2340 2347 2353 2379 2391 2473 2641 3393 4401 4447 4583 5100 5995 6549 6585 6877 7166 7522 7681 7747 7783 8435 8479 9560 9698 9840 10232 10767 10789 11064 11181 11273 11496 12103 12123 12455 13399 13505 14907 15955 16690 17152 17239 17500 17662 17818 19084 19087 19227 19241 19554 19797 20090 20237 20279 20283 21041 21857 22826 23013 23294 23828 24131 24716 24920 24969 25333 25439 25615 25769 25889 25982 26052 26575 27348 27426 27491 27512 27634 27945 28035 28075 28089 28112 28353 28356 28368 28414 28453 30044 31293 32561 32602 34361 36805 39677 40906 43713 43828 44005 44359 44915 45744 46882 47170https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/731/120?format=asciiOpticaldefaultJ/ApJ/731/120/sncatApparent light curve and dust estimates for individual SN Ia and distance modulus predictionsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCSimbad column added by the CDSmeta.ref.urlintnullableSNSN name (YYYYaa)meta.id;meta.maincharB0mag? Rest-frame B band maximum magnitude (1)magphot.mag;em.opt.Bfloatnullablee_B0mag? Uncertainty in B0magmagstat.error;phot.mag;em.opt.BfloatnullableDm15? B band decline rate {Delta}m_15_(B) from peak to 15 day past maximum.magsrc.var.amplitudefloatnullablee_Dm15? Uncertainty in Dm15magstat.errorfloatnullableV0mag? Rest-frame V band magnitude (2)magphot.mag;em.opt.Vfloatnullablee_V0mag? Uncertainty in V0magmagstat.error;phot.mag;em.opt.VfloatnullableR0mag? Rest-frame R band magnitude (2)magphot.mag;em.opt.Rfloatnullablee_R0mag? Uncertainty in R0magmagstat.error;phot.mag;em.opt.RfloatnullableI0mag? Rest-frame I band magnitude (2)magphot.mag;em.opt.Ifloatnullablee_I0mag? Uncertainty in I0magmagstat.error;phot.mag;em.opt.IfloatnullableJ0mag? Rest-frame J band magnitude (2)magphot.mag;em.IR.Jfloatnullablee_J0mag? Uncertainty in J0magmagstat.error;phot.mag;em.IR.JfloatnullableH0mag? Rest-frame H band magnitude (2)magphot.mag;em.IR.Hfloatnullablee_H0magUncertainty in H0magmagstat.error;phot.mag;em.IR.HfloatAVMarginal posterior mode of V band extinctionmagphys.absorption;em.opt.Vfloate_AVLower 68% interval in AVmagstat.errorfloatE_AVUpper 68% interval in AVmagstat.error;stat.maxfloatRvMarginal posterior mean ratio of total-to-selective dust absorption (R_V_=A_V_/(A_B_-A_V_))phys.absorption.gal;stat.meanfloate_RvStandard Deviation uncertainty in Rvstat.errorfloatRefReference code (3)meta.notecharczRedshiftkm/ssrc.redshiftfloatmuzDistance modulus expected from redshift (4)magphot.mag.distModfloate_muzDistance modulus standard deviation (5)magstat.errorfloatmu1Distance modulus estimated from resubstitutionmagphot.mag.distModfloatmu2Mean predicted distance modulus over bootstrapmagphot.mag.distModfloate_mu2Standard deviation of mu2 (6)magstat.errorfloatsig2Average standard deviation of uncertainty in mu2magstat.error;phot.magfloatAVmMarginal posterior mode V band extinction (7)magphys.absorptionfloatSimbadSimbad 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.main