| DOI | Resolve DOI: https://doi.org/10.1088/0004-6256/139/2/594 |
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| Author | Search for: Graham, M.L.; Search for: Prichet, C.J.; Search for: Sullivan, M.; Search for: Howell, D.A.; Search for: Gwyn, S.D.J.1; Search for: Astier, P.; Search for: Balland, C.; Search for: Basa, S.; Search for: Carlberg, R.G.; Search for: Conley, A.; Search for: Fouchez, D.; Search for: Guy, J.; Search for: Hardin, D.; Search for: Hook, I.M.; Search for: Pain, R.; Search for: Perrett, K.; Search for: Regnault, N.; Search for: Rich, J.; Search for: Balam, D.; Search for: Fabbro, S.; Search for: Hsiao, E.Y.; Search for: Mourao, A.; Search for: Palanque-Delabrouille, N.; Search for: Perlmutter, S.; Search for: Ruhlman-Kleider, V.; Search for: Suzuki, N.; Search for: Fakhouri, H.K.; Search for: Walker, E.S. |
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| Affiliation | - National Research Council of Canada. NRC Herzberg Institute of Astrophysics
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| Format | Text, Article |
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| Subject | supernovae; Canada-France-Hawaii telescope |
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| Abstract | We have combined the large SN Ia database of the Canada-France-Hawaii Telescope Supernova Legacy Survey and catalogs of galaxies with photometric redshifts, Very Large Array 1.4 GHz radio sources, and Spitzer infrared sources. We present eight SNe Ia in early-type host galaxies which have counterparts in the radio and infrared source catalogs. We find the SN Ia rate in subsets of radio and infrared early-type galaxies is ~1-5 times the rate in all early-type galaxies, and that any enhancement is always lsim2σ. Rates in these subsets are consistent with predictions of the two-component "A+B" SN Ia rate model. Since infrared properties of radio SN Ia hosts indicate dust-obscured star formation, we incorporate infrared star formation rates into the "A+B" model. We also show the properties of SNe Ia in radio and infrared galaxies suggest the hosts contain dust and support a continuum of delay time distributions (DTDs) for SNe Ia, although other DTDs cannot be ruled out based on our data. |
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| Publication date | 2010 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21275863 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 076d0029-0556-4c9c-a870-be107d007eb2 |
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| Record created | 2015-07-16 |
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| Record modified | 2020-04-17 |
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