A1 Refereed original research article in a scientific journal

Examining the Properties of Low-luminosity Hosts of Type Ia Supernovae from ASAS-SN




AuthorsHoloien Thomas WS, Berger Vera L, Hinkle Jason T, Galbany L, Strom Allison L, Vallely Patrick J, Anderson Joseph P, Boutsia Konstantina, French KD, Kochanek Christopher S, Kuncarayakti Hanindyo, Lyman Joseph D, Morrell Nidia, Prieto Jose L, Sanchez Sebastian F, Stanek KZ, Walth Gregory L

PublisherIOP Publishing Ltd

Publication year2023

JournalAstrophysical Journal

Journal name in sourceASTROPHYSICAL JOURNAL

Journal acronymASTROPHYS J

Article number 108

Volume950

Issue2

Number of pages11

ISSN0004-637X

DOIhttps://doi.org/10.3847/1538-4357/acce35

Web address https://doi.org/10.3847/1538-4357/acce35

Self-archived copy’s web addresshttps://research.utu.fi/converis/portal/detail/Publication/180774125


Abstract

We present a spectroscopic analysis of 44 low-luminosity host galaxies of Type Ia supernovae (SNe Ia) detected by the All-Sky Automated Survey for Supernovae (ASAS-SN), using hydrogen, oxygen, and sulfur emission lines to measure metallicities and star formation rates. We find no statistically significant evidence that the star formation activity and metallicities of the galaxies in our sample are inconsistent with galaxies of similar luminosities and masses. We identify two 3 σ outlier galaxies that have high metallicities for their stellar masses, but find that their other properties are consistent with general galaxies. The overall consistency between our sample and general galaxy samples further strengthens the evidence from more luminous SN Ia host galaxy samples that SN Ia host galaxies are typical.


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Last updated on 2024-26-11 at 18:38