Data on 197 SNe Ia and their 196 hosts Virtual Observatory Resource

Authors
  1. Barkhudaryan L.V.
  2. Published by
    CDS
Abstract

In this Letter, using classified 197 supernovae (SNe) Ia, we perform an analysis of their height distributions from the disc in edge-on spirals and investigate their light-curve (LC) decline rates ({Delta}m_15_). We demonstrate, for the first time, that 91T- and 91bg-like subclasses of SNe Ia are distributed differently toward the plane of their host disc. The average height from the disc and its comparison with scales of thin/thick disc components gives a possibility to roughly estimate the SNe Ia progenitor ages: 91T-like events, being at the smallest heights, originate from relatively younger progenitors with ages of about several 100 Myr, 91bg-like SNe, having the highest distribution, arise from progenitors with significantly older ages ~10 Gyr, and normal SNe Ia, which distributed between those of the two others, are from progenitors of about one up to ~10 Gyr. We find a correlation between LC decline rates and SN Ia heights, which is explained by the vertical age gradient of the stellar population in discs and a sub-Chandrasekhar mass white dwarf explosion models, where the {Delta}m_15_ parameter is a progenitor age indicator.

Keywords
  1. supernovae
  2. galaxies
  3. stellar-distance
  4. visible-astronomy
Bibliographic source Bibcode
2023MNRAS.520L..21B
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/520/L21
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/520/L21
Document Object Identifer DOI
doi:10.26093/cds/vizier.75209021

Access

IVOA Table Access TAP
https://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/520/L21/tablea5?
https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/520/L21/tablea5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/520/L21/tablea5?

History

2023-01-30T14:56:58Z
Resource record created
2023-01-30T14:56:58Z
Created
2024-10-18T15:21:54Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr