J/MNRAS/490/718ivo://CDS.VizieR/J/MNRAS/490/718doi:10.26093/cds/vizier.74900718CDSBarkhudaryan L.V.Hakobyan A.A.Karapetyan A.G.Mamon G.A.,Kunth D.Adibekyan V.Turatto M.2024-08-20T20:14:19Z2019-11-07T07:33:15ZCDS support team

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

cds-question@unistra.frsupernovaegalaxiesvisible-astronomycatalogsastrometrysurveysWe present an analysis of the galactocentric distributions of the 'normal' and peculiar '91bg-like' subclasses of 109 supernovae (SNe) Ia, and study the global parameters of their elliptical hosts. The galactocentric distributions of the SN subclasses are consistent with each other and with the radial light distribution of host stellar populations, when excluding bias against central SNe. Among the global parameters, only the distributions of u - r colours and ages are inconsistent significantly between the ellipticals of different SN Ia subclasses: the normal SN hosts are on average bluer/younger than those of 91bg-like SNe. In the colour-mass diagram, the tail of colour distribution of normal SN hosts stretches into the Green Valley - transitional state of galaxy evolution, while the same tail of 91bg-like SN hosts barely reaches that region. Therefore, the bluer/younger ellipticals might have more residual star formation that gives rise to younger 'prompt' progenitors, resulting in normal SNe Ia with shorter delay times. The redder and older ellipticals that already exhausted their gas for star formation may produce significantly less normal SNe with shorter delay times, outnumbered by 'delayed' 91bg-like events. The host ages (lower age limit of the delay times) of 91bg-like SNe does not extend down to the stellar ages that produce significant u-band fluxes - the 91bg-like events have no prompt progenitors. Our results favour SN Ia progenitor models such as He-ignited violent mergers that have the potential to explain the observed SN/host properties.2019MNRAS.490..718Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/490/718CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/sn : Asiago Supernova Catalogue (Barbon et al., 1999-)J/A+A/544/A81 : Supernovae and their hosts in SDSS DR8 (Hakobyan+, 2012)J/MNRAS/444/2428 : Disturbance levels of SNe host galaxies (Hakobyan+, 2014)J/MNRAS/456/2848 : Properties of 500 SNe and their 419 hosts (Hakobyan+, 2016)J/MNRAS/459/3130 : Lists of arm and interarm supernovae (Aramyan+, 2016)http://www.sdss.org : SDSS Home Pagehttps://sne.space : The Open Supernova Cataloghttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/490/718https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/490/718http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/490/718https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/490/718https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/490/718http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/490/718GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/490/718/table (Properties of 109 SNe and their 104 hosts)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/490/718/table?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/490/718/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/490/718/table?GETtext/xml+votable180.050000true190.72.69333330.0055555555555555566/19 306 425 621 635 948 1700-1701 1712 2227 2427 3075 4307 4391 4613 4771 4988 5429 5508 5701 6074 7523 8127 8271 8345 8351 8403 8511 8626 8705 8763 8794 8829 9125 9468 9535 9623 9632 9812 9939 10203 10302 10378-10380 11086 11263 11435 11568 12372 12525 12567 12771 13564 14907 17660 17670 17784 18017 18214 18830 18935 18939 19091 19303 19421 19516 19851 20021 20122 21989 21997 22361 22983 25448 25912 26046 26313 26584 27224 27470 27565 27714 27773 27831 27907 28075 28090 28249 28273 28426 28458 28490 28599 31529 31720 49109https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/490/718?format=asciiOpticaldefaultJ/MNRAS/490/718/tableProperties of 109 SNe and their 104 hostsSimbadNameSimbad column added by the CDSmeta.idcharTypeSN subclass (1)src.classcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSNSupernova (SN) designationmeta.id;meta.maincharREFSource of SN subclassmeta.bibcharoRASN offset right ascension from host galaxy nucleus, in the E/W directionarcsecpos.eq.ra;arith.difffloatn_oRA[EW] E/W direction of SN offset oRAmeta.notecharoDESN offset declination from host galaxy nucleus, in the N/S directionarcsecpos.eq.dec;arith.difffloatn_oDE[NS] N/S direction of SN offset oDEmeta.notecharFrg? SN fractional radial g-band fluxphot.flux.density;em.optfloatnullableiFrg? SN inner-truncated fractional fluxphot.flux.density;em.optfloatnullableGalSN host galaxy identification (2)meta.idcharDistHost galaxy distanceMpcpos.distancefloata/bHost galaxy axial ratiophys.angSize;arith.ratiofloatPAHost galaxy position angledegpos.posAngintReffHost galaxy effective radius in g-bandarcsecphys.angSizefloatDiamHost galaxy diameter in g-band (3)arcsecphys.angSizefloatuMagHost galaxy u-band absolute magnitudemagphot.mag;em.opt.UfloatgMagHost galaxy g-band absolute magnitudemagphys.magAbsfloatrMagHost galaxy r-band absolute magnitudemagphot.mag;em.opt.RfloatiMagHost galaxy i-band absolute magnitudemagphot.mag;em.opt.IfloatzMagHost galaxy z-band absolute magnitudemagphot.magfloatAgeHost galaxy luminosity-weighted age in MyrMyrtime.ageint_RAFrom Simbad and http://www.rochesterastronomy.org (right ascension part)degpos.eq.ra;meta.main_DEFrom Simbad and http://www.rochesterastronomy.org (declination part)degpos.eq.dec;meta.main