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

Journal Article · Mon Feb 15 04:00:00 EST 2010 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/139/2/519; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21301355

Contreras, Carlos; Phillips, M M; Folatelli, Gaston; Stritzinger, Maximilian; Boldt, Luis; Gonzalez, Sergio; Krzeminski, Wojtek; Morrell, Nidia; Roth, Miguel; Salgado, Francisco ^[1]; Hamuy, Mario; Maureira, MarIa Jose ^[2]; Suntzeff, Nicholas B ^[3]; Persson, S E; Burns, Christopher R; Freedman, W L; Madore, Barry F; Murphy, David ^[4]; Wyatt, Pamela ^[5]; Weidong, Li ^[6]

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1. Las Campanas Observatory, Carnegie Observatories, Casilla 601, La Serena (Chile)
2. Departamento de Astronomia, Universidad de Chile, Casilla 36-D, Santiago (Chile)
3. Physics Department, Texas A and M University, College Station, TX 77843-4242 (United States)
4. Observatories of the Carnegie Institution of Washington, 813 Santa Barbara St., Pasadena, CA 91101 (United States)
5. Infrared Processing and Analysis Center, Caltech/Jet Propulsion Laboratory, Pasadena, CA 91125 (United States)
6. Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States)

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 {approx}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 JHK{sub s} ) 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.

• OSTI ID: 21301355
• Journal Information: Astronomical Journal (New York, N.Y. Online), Journal Name: Astronomical Journal (New York, N.Y. Online) Journal Issue: 2 Vol. 139; ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
GALAXIES
PHOTOMETRY
RED SHIFT
SUPERNOVAE
TELESCOPES