The Carnegie Supernova Project: First Photometry Data Release of Low-Redshift Type Ia Supernovae

Understand

The Carnegie Supernova Project (CSP) 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.

• Here we present the first release of photometric data that contains the optical light curves of 35 Type Ia supernovae, and near-infrared light curves for a subset of 25 events.
• The data comprise 5559 optical (ugriBV) and 1043 near-infrared (YJHKs) data points in the natural system of the Swope telescope.
• Twenty-eight supernovae have pre-maximum data, and for 15 of these, the observations begin at least 5 days before B maximum.