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Spectra of high-redshift type Ia supernovae and a comparison with their low-redshift counterparts

Abstract:

We present spectra for 14 high-redshift (0.17 < z < 0.83) supernovae, which were discovered by the Supernova Cosmology Project as part of a campaign to measure cosmological parameters. The spectra are used to determine the redshift and classify the supernova type, essential information if the supernova are to be used for cosmological studies. Redshifts were derived either from the spectrum of the host galaxy or from the spectrum of the supernova itself. We present evidence that these su...

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Publisher copy:
10.1086/497635

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Howell, DA More by this author
Aldering, G More by this author
Amanullah, R More by this author
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Journal:
Astronomical Journal
Volume:
130
Issue:
6
Pages:
2788-2803
Publication date:
2005-12-05
DOI:
ISSN:
0004-6256
URN:
uuid:3a061181-e758-4c70-8629-195303d505c6
Source identifiers:
148104
Local pid:
pubs:148104

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