Spectroscopic Detection of Type Ia Supernovae in the Sloan Digital Sky Survey | Zendy

Darren S. Madgwick | Zendy; P. C. Hewett | Zendy; D. Mortlock | Zendy; Lifan Wang | Zendy

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Spectroscopic Detection of Type Ia Supernovae in the Sloan Digital Sky Survey

Author(s) -

Darren S. Madgwick,

P. C. Hewett,

D. Mortlock,

Lifan Wang

Publication year - 2003

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/381081

Subject(s) - sky , supernova , galaxy , astrophysics , physics , type (biology) , astronomy , geology , paleontology

We present the results of a novel new search of the first data-release fromthe Sloan Digital Sky Survey (SDSS-DR1) for the spectra of supernovae. The useof large spectroscopic galaxy surveys offers the prospect of obtaining improvedestimates of the local supernova rate, with the added benefit of a verydifferent selection function to that of conventional photometric surveys. Inthis Letter we present an overview of our search methodology and the details of19 Type Ia supernovae found in SDSS--DR1. The supernovae sample is used to makea preliminary estimate, Gamma_Ia = 0.4 +/- 0.2 h^2 SNu, of the cosmological SNerate.

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