Rates and properties of type Ia supernovae as a function of mass and star-formation in their host galaxies
M. Sullivan
,
D. Le Borgne
(1)
,
C. J. Pritchet
,
A. Hodsman
,
J. D. Neill
,
D. A Howell
,
R. G Carlberg
,
P. Astier
(2)
,
E. Aubourg
(1, 3)
,
D. Balam
,
S. Basa
(4)
,
A. Conley
,
S. Fabbro
,
D. Fouchez
(5)
,
J. Guy
(2)
,
I. Hook
,
R. Pain
(2)
,
N. Palanque-Delabrouille
(1)
,
K. Perrett
,
N. Regnault
(2)
,
J. Rich
(1)
,
Richard Taillet
(2)
,
S. Baumont
(2)
,
J. Bronder
,
R. S. Ellis
,
M. Filiol
(4)
,
V. Lusset
(1)
,
S. Perlmutter
,
P. Ripoche
(5)
,
C. Tao
(5)
1
DAPNIA -
Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
2 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
3 APC (UMR_7164) - AstroParticule et Cosmologie
4 LAM - Laboratoire d'Astrophysique de Marseille
5 CPPM - Centre de Physique des Particules de Marseille
2 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
3 APC (UMR_7164) - AstroParticule et Cosmologie
4 LAM - Laboratoire d'Astrophysique de Marseille
5 CPPM - Centre de Physique des Particules de Marseille
M. Sullivan
- Function : Author
D. Le Borgne
- Function : Author
- PersonId : 746607
- IdHAL : damien-le-borgne
- ORCID : 0000-0002-3145-6268
- IdRef : 078744423
C. J. Pritchet
- Function : Author
A. Hodsman
- Function : Author
J. D. Neill
- Function : Author
D. A Howell
- Function : Author
R. G Carlberg
- Function : Author
E. Aubourg
- Function : Author
- PersonId : 14010
- IdHAL : eric-aubourg
- ORCID : 0000-0002-5592-023X
- IdRef : 078069823
D. Balam
- Function : Author
A. Conley
- Function : Author
S. Fabbro
- Function : Author
D. Fouchez
- Function : Author
- PersonId : 742181
- IdHAL : dominique-fouchez
- ORCID : 0000-0002-7496-3796
- IdRef : 085682160
I. Hook
- Function : Author
R. Pain
- Function : Author
- PersonId : 742459
- IdHAL : reynald-pain
- ORCID : 0000-0003-4016-6067
- IdRef : 033075735
K. Perrett
- Function : Author
Richard Taillet
- Function : Author
- PersonId : 1317955
- IdHAL : richard-taillet
- ORCID : 0000-0003-0107-2746
S. Baumont
- Function : Author
- PersonId : 845364
- IdRef : 120465957
J. Bronder
- Function : Author
R. S. Ellis
- Function : Author
S. Perlmutter
- Function : Author
Abstract
(ABRIDGED) We show that Type Ia supernovae (SNe Ia) are formed within both very young and old stellar populations, with observed rates that depend on the stellar mass and mean star-formation rates (SFRs) of their host galaxies. Models where the SN Ia rate depends solely on host galaxy stellar mass are ruled out with 99% confidence. Our analysis is based on 100 spectroscopically-confirmed SNe Ia, plus 24 photometrically-classified events, all from the Supernova Legacy Survey (SNLS) and distributed over 0.2