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Nebular spectra of 111 Type Ia supernovae disfavour single-degenerate progenitors
- Source :
- Tucker, M A, Shappee, B J, Vallely, P J, Stanek, K Z, Prieto, J L, Botyanszki, J, Kochanek, C S, Anderson, J P, Brown, J, Galbany, L, Holoien, T W-S, Hsiao, E Y, Kumar, S, Kuncarayakti, H, Morrell, N, Phillips, M M, Stritzinger, M D & Thompson, T A 2020, ' Nebular spectra of 111 Type Ia supernovae disfavour single-degenerate progenitors ', Monthly Notices of the Royal Astronomical Society, vol. 493, no. 1, pp. 1044-1062 . https://doi.org/10.1093/mnras/stz3390, Monthly Notices of the Royal Astronomical Society
- Publication Year :
- 2019
- Publisher :
- Oxford University Press (OUP), 2019.
-
Abstract
- We place statistical constraints on Type Ia supernova (SN Ia) progenitors using 227 nebular phase spectra of 111 SNe Ia. We find no evidence of stripped companion emission in any of the nebular phase spectra. Upper limits are placed on the amount of mass that could go undetected in each spectrum using recent hydrodynamic simulations. With these null detections, we place an observational $3\sigma$ upper limit on the fraction of SNe Ia that are produced through the classical H-rich non-degenerate companion scenario of < 5.5%. Additionally, we set a tentative $3\sigma$ upper limit on He star progenitor scenarios of < 6.4%, although further theoretical modelling is required. These limits refer to our most representative sample including normal, 91bg-like, 91T-like, and "Super Chandrasekhar" \sne but excluding SNe Iax and SNe Ia-CSM. As part of our analysis, we also derive a Nebular Phase Phillips Relation, which approximates the brightness of a SN Ia from $150-500$~days after maximum using the peak magnitude and decline rate parameter $\Delta m_{15} (B)$.<br />Comment: 18 pages, 8 figures, and 3 tables in main text, plus 3 pages of appendices with 1 figure and 7 tables. Accepted by MNRAS
- Subjects :
- Brightness
supernovae
FOS: Physical sciences
Astrophysics
Type (model theory)
01 natural sciences
Spectral line
galaxies
0103 physical sciences
distances and redshifts
010303 astronomy & astrophysics
Chandrasekhar limit
Solar and Stellar Astrophysics (astro-ph.SR)
High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
010308 nuclear & particles physics
Null (mathematics)
Astronomy and Astrophysics
Galaxy
Supernova
Astrophysics - Solar and Stellar Astrophysics
general
13. Climate action
Space and Planetary Science
Magnitude (astronomy)
Astrophysics - High Energy Astrophysical Phenomena
Subjects
Details
- ISSN :
- 13652966 and 00358711
- Volume :
- 493
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Accession number :
- edsair.doi.dedup.....1ddfa577a2e6e8e1933c5faf931f3571