Rates and delay times of Type Ia supernovae in the Dark Energy Survey

DES Collaboration, P. Wiseman*, M. Sullivan, M. Smith, C. Frohmaier, M. Vincenzi, O. Graur, B. Popovic, P. Armstrong, D. Brout, T. M. Davis, L. Galbany, S. R. Hinton, L. Kelsey, R. Kessler, C. Lidman, A. Möller, R. C. Nichol, B. Rose, D. ScolnicM. Toy, Z. Zontou, J. Asorey, D. Carollo, K. Glazebrook, G. F. Lewis, B. E. Tucker, T. M. C. Abbott, M. Aguena, S. Allam, F. Andrade-Oliveira, J. Annis, D. Bacon, E. Bertin, D. Brooks, E. Buckley-Geer, D. L. Burke, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, M. Costanzi, L. N. Da Costa, M. E. S. Pereira, S. Desai, H. T. Diehl, P. Doel, S. Everett, I. Ferrero, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, E. Gaztanaga, T. Giannantonio, D. Gruen, R. A. Gruendl, J. Gschwend, G. Gutierrez, D. L. Hollowood, K. Honscheid, B. Hoyle, D. J. James, E. Krause, K. Kuehn, N. Kuropatkin, M. A. G. Maia, J. L. Marshall, P. Martini, F. Menanteau, R. Miquel, R. Morgan, R. L. C. Ogando, A. Palmese, F. Paz-Chinchón, D. Petravick, A. Pieres, A. A.Plazas Malagón, A. K. Romer, E. Sanchez, V. Scarpine, M. Schubnell, S. Serrano, I. Sevilla-Noarbe, M. Soares-Santos, E. Suchyta, M. E. C. Swanson, G. Tarle, D. Thomas, C. To, T. N. Varga, A. R. Walker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)
10 Downloads (Pure)

Abstract

We use a sample of 809 photometrically classified Type Ia supernovae (SNe Ia) discovered by the Dark Energy Survey (DES) along with 40 415 field galaxies to calculate the rate of SNe Ia per galaxy in the redshift range 0.2 < z < 0.6. We recover the known correlation between SN Ia rate and galaxy stellar mass across a broad range of scales 8.5 ≤ log (M/M) ≤ 11.25. We find that the SN Ia rate increases with stellar mass as a power law with index 0.63 ± 0.02, which is consistent with the previous work. We use an empirical model of stellar mass assembly to estimate the average star formation histories (SFHs) of galaxies across the stellar mass range of our measurement. Combining the modelled SFHs with the SN Ia rates to estimate constraints on the SN Ia delay time distribution (DTD), we find that the data are fit well by a power-law DTD with slope index β = -1.13 ± 0.05 and normalization A = 2.11 ± 0.05 × 10-13 SNe M-1 yr-1, which corresponds to an overall SN Ia production efficiency NIa/M = 0.9-0.7+4.0 × 10-3 SNe M-1. Upon splitting the SN sample by properties of the light curves, we find a strong dependence on DTD slope with the SN decline rate, with slower-declining SNe exhibiting a steeper DTD slope. We interpret this as a result of a relationship between intrinsic luminosity and progenitor age, and explore the implications of the result in the context of SN Ia progenitors.

Original languageEnglish
Pages (from-to)3330-3348
Number of pages19
JournalMonthly Notices of the Royal Astronomical Society
Volume506
Issue number3
DOIs
Publication statusPublished - 1 Sept 2021

Bibliographical note

Copyright © 2021 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • galaxies: evolution
  • supernovae: general
  • white dwarfs

Fingerprint

Dive into the research topics of 'Rates and delay times of Type Ia supernovae in the Dark Energy Survey'. Together they form a unique fingerprint.

Cite this