ZTF SN Ia DR2: Properties of the low-mass host galaxies of Type Ia supernovae in a volume-limited sample
Year: 2025
Type: article
Abstract: In this study, we explore the characteristics of ‘low-mass’ (log( M ⋆ / M ⊙ ) ≤ 8) and ‘intermediate-mass’ (8 < log( M ⋆ / M ⊙ ) ≤ 10) host galaxies of Type Ia supernovae (SNe Ia) from the second data release (DR2) of the Zwicky Transient Facility survey. We investigated their correlations with different sub-types of SNe Ia. We used the photospheric velocities measured from the Si II λ 6355 feature, SALT2 light-curve stretch ( x 1 ), and host-galaxy properties of SNe Ia to re-investigate the existing relationship between host galaxy mass and Si II λ 6355 velocities. We also investigated sub-type preferences for host populations. We show that the more energetic and brighter 91T-like SNe Ia tend to reside among the younger host populations, while 91bg-like SNe Ia are found among the older populations. Our findings suggest that high-velocity SNe Ia (HV SNe Ia) do indeed come from older populations, but they can also come from young populations as well. Therefore, while our findings can partly provide support for HV SNe Ia in the context of single degenerate progenitor models, they indicate that HV SNe Ia (rather than comprising a different population) might be a continued distribution with different explosion mechanisms. Lastly, we investigate the specific rate of SNe Ia in the volume-limited SN Ia sample of DR2 and compare our results with other surveys.
Source: Astronomy and Astrophysics
Authors: U. Burgaz, K. Maguire, G. Dimitriadis, M. Smith, J. Sollerman, L. Galbany, M. Rigault, A. Goobar, J. Johansson, Y.-L. Kim, A. Alburai, M. Amenouche, M. Deckers, M. Ginolin, L. Harvey, T. E. Muller-Bravo, J. Nordin, K. Phan, P. Rosnet, P. E. Nugent, J. H. Terwel, M. Graham, D. Hale, M. M. Kasliwal, R. R. Laher, J. D. Neill, J. Purdum, B. Rusholme
Institutions: Trinity College Dublin, Lancaster University, Stockholm University, Institute of Space Sciences, Institut d'Estudis Espacials de Catalunya, Lyon 1 Université, Centre National de la Recherche Scientifique, Institut National de Physique Nucléaire et de Physique des Particules, Institut de Physique des 2 Infinis de Lyon, Herzberg Institute of Astrophysics, National Research Council Canada, Humboldt-Universität zu Berlin, Université Clermont Auvergne, Laboratoire de Physique de Clermont Auvergne, Lawrence Berkeley National Laboratory, University of California, Berkeley, Nordic Optical Telescope, California Institute of Technology, Infrared Processing and Analysis Center
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,865
Funders: National Science Foundation, Gordon and Betty Moore Foundation, California Institute of Technology, Northwestern University, University of Washington, University of Warwick, European Commission, Trinity College Dublin, Weizmann Institute of Science, Irish Research Council, Knut och Alice Wallenbergs Stiftelse, Vetenskapsrådet, Ministerio de Ciencia e Innovación, Stockholms Universitet, Horizon 2020 Framework Programme, Science and Technology Facilities Council, Deutsches Elektronen-Synchrotron, Agència de Gestió d'Ajuts Universitaris i de Recerca, Agencia Estatal de Investigación, Institut National de Physique Nucléaire et de Physique des Particules, H2020 European Research Council
Awards: G1175115578, Charting new physics with time-domain astronomy, G1530525900, G1855990336, The SED Machine: an Efficient Transient Classifier, G1938211519, G2018370741, G2262748287, G2309174360, G2601397997, Exploring & Exploiting the Dynamic Optical Sky, G2849891921, G288263039, G2998051782, G300979063, G3439265645, G3459355364, G3480869486, ZWICKY TRANSIENT FACILITY, G3518538256, G3681454997, G4019291869, G4042783231, G4201897825, G425668148, G430777504, G434337789, G4655338613, Type Ia supernovae: from explosions to cosmology, G4881091899, G4937468798, G5077476177, G5080475149, G5195188938, G5421974903, Understanding Type Ia SuperNovae for Accurate Cosmology, G5783601166, G5805502524, Lancaster University Observational Astrophysics 2021-2024, G5852091828, G617610489, PIRE: GROWTH: Global Relay of Observatories Watching Transients Happen, G683931746, G6853635150, G7001747737, G7099350353, G7137047011, G7169023097, G7297159037, G7441047379, G7476612352, G7510076775, G7944295140, G8324017279, G8775481269, G8924351487, G917015191, A new wave of transients: supernova cosmology with the Rubin Observatory, 4MOST and Euclid, G99296377
OpenAlex ID: W4406267199