J/MNRAS/448/1345ivo://CDS.VizieR/J/MNRAS/448/1345doi:10.26093/cds/vizier.74481345CDSDhawan S.Leibundgut B.Spyromilio J.Maguire K.2024-08-14T20:20:00Z2015-12-18T12:15:07ZCDS support team

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

cds-question@unistra.frsupernovaeinfrared-photometryType Ia supernovae (SNe Ia) have been proposed to be much better distance indicators at near-infrared (NIR) compared to optical wavelengths - the effect of dust extinction is expected to be lower and it has been shown that SNe Ia behave more like `standard candles' at NIR wavelengths. To better understand the physical processes behind this increased uniformity, we have studied the Y, J and H-filter light curves of 91 SNe Ia from the literature. We show that the phases and luminosities of the first maximum in the NIR light curves are extremely uniform for our sample. The phase of the second maximum, the late-phase NIR luminosity and the optical light-curve shape are found to be strongly correlated, in particular more luminous SNe Ia reach the second maximum in the NIR filters at a later phase compared to fainter objects. We also find a strong correlation between the phase of the second maximum and the epoch at which the SN enters the Lira law phase in its optical colour curve (epochs ~15 to 30d after B-band maximum). The decline rate after the second maximum is very uniform in all NIR filters. We suggest that these observational parameters are linked to the nickel and iron mass in the explosion, providing evidence that the amount of nickel synthesized in the explosion is the dominating factor shaping the optical and NIR appearance of SNe Ia.2015MNRAS.448.1345Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/448/1345CatalogResearchIsServedByTAP 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/MNRAS/448/1345https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/448/1345http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/448/1345https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/448/1345https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/448/1345http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/448/1345GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/448/1345/table1 (SN sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/448/1345/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/448/1345/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/448/1345/table1?GETtext/xml+votable180.050000true50.7458333-37.21333330.0055555555555555566/248 732 4114 4447 4577 4684 7606 8341 9533 10218 10921 10984 11434 12455 12585 15955 16690 17152 17239 17340 17662 17692 17736 17818 17840 18011 18016-18017 19051 19102 19187 19227 19581 19624 19777 19991-19992 20140 20291 21041 21138 21857 23013 23179 23193 23219 23294 23828 23916 24131 24716 24920 24969 25333 25513 25615 25769 25960 26271 26575 27348 27426 27491 27512 27910 28035 28353 31628 32509 34361 34493 34534 36045 36287 36662 36805 36919 37299 37668 39627 39836 40145 40379 43262 43713 43877 44359 45418 45744 46882 47170https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/448/1345?format=asciiInfrareddefaultJ/MNRAS/448/1345/table1SN samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN name (SNYYYYaa or PTFYYaaa)meta.id;meta.maincharbPhaseLower value of phase rangedtime.phasefloatBPhaseUpper value of phase rangedtime.phasefloatNi? Number of observations in i bandmeta.numberintnullableNY? Number of observations in Y bandmeta.numberintnullableNJ? Number of observations in J bandmeta.numberintnullableNH? Number of observations in H bandmeta.numberintnullableNK? Number of observations in K bandmeta.numberintnullableRefReference (1)meta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/448/1345/tablea1Y filter apparent magnitude and phase of the two maxima and the minimum for the complete samplet0? Phase of first minimum (1)dtime.phasefloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN name (SNYYYYaa)meta.id;meta.mainchart1? Phase of first maximum (1)dtime.phasefloatnullablee_t1? rms uncertainty on t1dstat.errorfloatnullablem1? Magnitude of first maximummagphot.magfloatnullablee_m1? rms uncertainty on m1magstat.errorfloatnullablee_t0? rms uncertainty on t0dstat.errorfloatnullablem0? Magnitude of first minimummagphot.magfloatnullablee_m0? rms uncertainty on m0magstat.errorfloatnullablet2? Phase of second maximum (1)dtime.phasefloatnullablee_t2? rms uncertainty on t2dstat.errorfloatnullablem2? Magnitude of second maximummagphot.magfloatnullablee_m2? rms uncertainty on m2magstat.errorfloatnullableJ/MNRAS/448/1345/tablea2J filter apparent magnitude and phase of the two maxima and the minimum for the complete samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN name (SNYYYYaa)meta.id;meta.mainchart1? Phase of first maximum (1)dtime.phasefloatnullablee_t1? rms uncertainty on t1dstat.errorfloatnullablem1? Magnitude of first maximummagphot.magfloatnullablee_m1? rms uncertainty on m1magstat.errorfloatnullablet0? Phase of first minimum (1)dtime.phasefloatnullablee_t0? rms uncertainty on t0dstat.errorfloatnullablem0? Magnitude of first minimummagphot.magfloatnullablee_m0? rms uncertainty on m0magstat.errorfloatnullablet2? Phase of second maximum (1)dtime.phasefloatnullablee_t2? rms uncertainty on t2dstat.errorfloatnullablem2? Magnitude of second maximummagphot.magfloatnullablee_m2? rms uncertainty on m2magstat.errorfloatnullableJ/MNRAS/448/1345/tablea3H filter apparent magnitude and phase of the two maxima and the minimum for the complete samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSN name (SNYYYYaa)meta.id;meta.mainchart1? Phase of first maximum (1)dtime.phasefloatnullablee_t1? rms uncertainty on t1dstat.errorfloatnullablem1? Magnitude of first maximummagphot.magfloatnullablee_m1? rms uncertainty on m1magstat.errorfloatnullablet0? Phase of first minimum (1)dtime.phasefloatnullablee_t0? rms uncertainty on t0dstat.errorfloatnullablem0? Magnitude of first minimummagphot.magfloatnullablee_m0? rms uncertainty on m0magstat.errorfloatnullablet2? Phase of second maximum (1)dtime.phasefloatnullablee_t2? rms uncertainty on t2dstat.errorfloatnullablem2? Magnitude of second maximummagphot.magfloatnullablee_m2? rms uncertainty on m2magstat.errorfloatnullableJ/MNRAS/448/1345/tablea4Late time decline rate and luminosity at +55days in YJHrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFilt[YJH] Filtermeta.id;instr.filtercharSNSN name (SNYYYYaa)meta.id;meta.maincharslopeSlopemag/dspect.indexfloate_sloperms uncertainty on slopemag/dstat.errorfloatM55Absolute magnitude at +55days after explosionmagphys.magAbsfloate_M55rms uncertainty on M55magstat.errorfloatJ/MNRAS/448/1345/tablea5t2 and epoch at which SN enters Lira lawrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintFilt[YJH] Filtermeta.id;instr.filtercharSNSN name (SNYYYYaa)meta.id;meta.mainchart2Epoch of second maximumdtime.epochfloate_t2rms uncertainty on t2dstat.errorfloattLEpoch at which SN enters Lira lawdtime.epochfloate_tLrms uncertainty on tLdstat.errorfloat