J/MNRAS/517/L132ivo://CDS.VizieR/J/MNRAS/517/L132doi:10.26093/cds/vizier.75179132CDSKarapetyan A.G.2024-08-22T20:16:33Z2022-12-08T12:26:27ZCDS support team

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

cds-question@unistra.frsupernovaegalaxiesstellar-distancevisible-astronomyWe present an analysis of the distribution of 77 supernovae (SNe) Ia relative to spiral arms of their Sab-Scd host galaxies, using our original measurements of the SN distances from the nearby arms, and study their light-curve decline rates ({Delta}m_15_). For the galaxies with prominent spiral arms, we show that the {Delta}m_15_ values of SNe Ia, which are located on the arms, are typically smaller (slower declining) than those of interarm SNe Ia (faster declining). We demonstrate that the SN Ia distances from the spiral arms and their galactocentric radii are correlated: before and after the average corotation radius, SNe Ia are located near the inner and outer edges (shock fronts) of spiral arms, respectively. For the first time, we find a significant correlation between the {Delta}m_15_ values and SN distances from the shock fronts of the arms (progenitor birthplace), which is explained in the frameworks of sub-Chandrasekhar-mass white dwarf explosion models and density wave theory, where, respectively, the {Delta}m_15_ parameter and SN distance from the shock front are appropriate progenitor population age (lifetime) indicators.2022MNRAS.517L.132Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/517/L132CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/499/1424 : Properties of 407 SNe and their 394 hosts (Hakobyan+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/517/L132https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/517/L132http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/517/L132https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/517/L132https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/517/L132http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/517/L132GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/517/L132/tablea3 (Properties of 77 SNe Ia)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/517/L132/tablea3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/517/L132/tablea3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/517/L132/tablea3?GETtext/xml+votable180.050000true171.995916729.50594440.0055555555555555566/626 697 2142 2251 2391 2641 3393 4583 4719 5004 5006 5192 5639 5975 6101 6549 7659 7783 8064 9794 10232 10789 10817 10858 11064 11434 11939 12497 13399 13529 13545 15954-15955 16690 17410 18206 18296 19283 19581 20090 20140 20237 20279 20370 20601 21584 21857 23077 23157 24152 25078-25079 25491 25769 25889 26392 27512 27761 27918 28035 28167 28353 28579 31293 31881 32129 32307 32569 36131 40337 44359 44896 45041 48665https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/517/L132?format=asciiOpticaldefaultJ/MNRAS/517/L132/tablea3Properties of 77 SNe IaSNSupernova (SN) namemeta.id;meta.maincharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIntArArm and interarm SN definitionobs.fieldchardtildSN distance from the peak of the spiral arm, normalized to the corresponding semiwidth of the armpos.distancefloatDtildSN distance from the shock front of the arm, normalized to the width of the armpos.distancefloatrtildDeprojected and R_25_-normalized galactocentric distance of SNpos.distancefloat_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.main