Carnegie Supernova Project: First Photometry Data Release of Type Ia Supernovae

Details Carnegie Supernova Project: First Photometry Data Release of Type Ia Supernovae Carnegie Supernova Project: First Photometry Data Release of Type Ia Supernovae

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21442704c&link_type=abstract

American Astronomical Society, AAS Meeting #214, #427.04; Bulletin of the American Astronomical Society, Vol. 41, p.696

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The Carnegie Supernova Project is a five year survey being carried out at the Las Campanas Observatory to obtain high-quality light curves of 100 low-redshift Type Ia supernovae in a well-defined photometric system. In this paper, we present the first release of photometric data that contains the optical (ugriBV) light curves of 35 Type Ia supernovae, and near-infrared (YJHKs) light curves for a subset of 25 events. Twenty-eight supernovae have pre-maximum data, and for 15 of these, the observations begin at least 5 days before B maximum. This is one of the most accurate datasets of low-z Type Ia supernovae published to date. When completed, the CSP dataset will constitute a fundamental reference for precise determinations of cosmological parameters, and serve as a rich resource for comparison with models of Type Ia supernovae.

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