THE CARNEGIE SUPERNOVA PROJECT: FIRST PHOTOMETRY DATA RELEASE OF LOW-REDSHIFT TYPE Ia SUPERNOVAE Academic Article uri icon

abstract

  • 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 (SNe Ia) in a well-defined photometric system. Here we present the first release of photometric data that contains the optical light curves of 35 SNe Ia, and near-infrared light curves for a subset of 25 events. The data comprise 5559 optical (ugriBV) and 1043 near-infrared (Y JHKs ) data points in the natural system of the Swope telescope. Twenty-eight SNe 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 data sets of low-redshift SNe Ia published to date. When completed, the CSP data set will constitute a fundamental reference for precise determinations of cosmological parameters, and serve as a rich resource for comparison with models of SNe Ia. © 2010. The American Astronomical Society. All rights reserved..

published proceedings

  • The Astronomical Journal

author list (cited authors)

  • Contreras, C., Hamuy, M., Phillips, M. M., Folatelli, G., Suntzeff, N. B., Persson, S. E., ... Filippenko, A. V

citation count

  • 244

complete list of authors

  • Contreras, Carlos||Hamuy, Mario||Phillips, MM||Folatelli, Gastón||Suntzeff, Nicholas B||Persson, SE||Stritzinger, Maximilian||Boldt, Luis||González, Sergio||Krzeminski, Wojtek||Morrell, Nidia||Roth, Miguel||Salgado, Francisco||Maureira, María José||Burns, Christopher R||Freedman, WL||Madore, Barry F||Murphy, David||Wyatt, Pamela||Li, Weidong||Filippenko, Alexei V

publication date

  • February 2010