A1 Refereed original research article in a scientific journal
The delay time distribution of supernovae from integral-field spectroscopy of nearby galaxies
Authors: Castrillo Asier, Ascasibar Yago, Galbany Lluís, Sanchez Sebastián F, Badenes Carles, Anderson Joseph P, Kuncarayakti Hanindyo, Lyman Joseph D, Díaz Angeles I
Publisher: OXFORD UNIV PRESS
Publication year: 2021
Journal: Monthly Notices of the Royal Astronomical Society
Journal name in source: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Journal acronym: MON NOT R ASTRON SOC
Volume: 501
Issue: 3
First page : 3122
Last page: 3136
Number of pages: 15
ISSN: 0035-8711
eISSN: 1365-2966
DOI: https://doi.org/10.1093/mnras/staa3876
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/53416302
Constraining the delay time distribution (DTD) of different supernova (SN) types can shed light on the time-scales of galaxy chemical enrichment and feedback processes affecting galaxy dynamics, and SN progenitor properties. Here, we present an approach to recover SN DTDs based on integral-field spectroscopy (IFS) of their host galaxies. Using a statistical analysis of a sample of 116 SNe in 102 galaxies, we evaluate different DTD models for SN types Ia (73), II (28), and Ib/c (15). We find the best SN Ia DTD fit to be a power law with an exponent α = -1.1 +/- 0.3 (50 per cent confidence interval (C.I.)), and a time delay (between star formation and the first SNe) Δ = 50-35+100 Myr (50 per cent C.I.). For core collapse (CC) SNe, both of the Zapartas et al. DTD models for single and binary stellar evolution are consistent with our results. For SNe II and Ib/c, we find a correlation with a Gaussian DTD model with σ = 82-23+129 Myr and σ = 56-9+141 Myr (50 per cent C.I.), respectively. This analysis demonstrates that IFS opens a new way of studying SN DTD models in the local Universe.
Downloadable publication This is an electronic reprint of the original article. |  |
