- Abstract:
-
We analyze the mean rest-frame ultraviolet (UV) spectrum of Type Ia Supernovae (SNe) and its dispersion using high signal-to-noise ratio Keck-I/LRIS-B spectroscopy for a sample of 36 events at intermediate redshift (z̄ = 0.5) discovered by the Canada-France-Hawaii Telescope Supernova Legacy Survey (SNLS). We introduce a new method for removing host galaxy contamination in our spectra, exploiting the comprehensive photometric coverage of the SNLS SNe and their host galaxies, thereby providing ...
Expand abstract - Publisher copy:
- 10.1086/524981
-
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- Publisher:
- Institute of Physics Publishing
- Journal:
- Astrophysical Journal
- Volume:
- 674
- Issue:
- 1
- Pages:
- 51-69
- Publication date:
- 2008-02-10
- DOI:
- EISSN:
-
1538-4357
- ISSN:
-
0004-637X
- URN:
-
uuid:68b23c2c-b9fe-438e-ae4e-f64a4eea1170
- Source identifiers:
-
160722
- Local pid:
- pubs:160722
- Language:
- English
- Keywords:
- Copyright date:
- 2008
Journal article
Verifying the cosmological utility of type Ia supernovae: Implications of a dispersion in the ultraviolet spectra
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