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Title:
The Carnegie Supernova Project: The Low-Redshift Survey
Authors:
Hamuy, Mario; Folatelli, Gastón; Morrell, Nidia I.; Phillips, Mark M.; Suntzeff, Nicholas B.; Persson, S. E.; Roth, Miguel; Gonzalez, Sergio; Krzeminski, Wojtek; Contreras, Carlos; Freedman, Wendy L.; Murphy, D. C.; Madore, Barry F.; Wyatt, P.; Maza, José; Filippenko, Alexei V.; Li, Weidong; Pinto, P. A.
Affiliation:
AA(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile; Current address: Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile; .), AB(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AC(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AD(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AE(Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, Casilla 603, La Serena, Chile), AF(Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101), AG(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AH(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AI(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AJ(Carnegie Institution of Washington, Las Campanas Observatory, Colina El Pino s/n, Casilla 601, La Serena, Chile), AK(Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101), AL(Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101), AM(Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101), AN(Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101), AO(Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile), AP(Department of Astronomy, University of California, 601 Campbell Hall 3411, Berkeley, CA 94720-3411), AQ(Department of Astronomy, University of California, 601 Campbell Hall 3411, Berkeley, CA 94720-3411), AR(Steward Observatory, University of Arizona, Tucson, AZ 85721)
Publication:
The Publications of the Astronomical Society of the Pacific, Volume 118, Issue 839, pp. 2-20. (PASP Homepage)
Publication Date:
01/2006
Origin:
UCP
PASP Keywords:
Stars: Supernovae: General, Techniques: Miscellaneous, Cosmology: Observations
Abstract Copyright:
(c) 2006: The Astronomical Society of the Pacific
DOI:
10.1086/500228
Bibliographic Code:
2006PASP..118....2H

Abstract

Supernovae are essential to understanding the chemical evolution of the universe. Type Ia supernovae also provide the most powerful observational tool currently available for studying the expansion history of the universe and the nature of dark energy. Our basic knowledge of supernovae comes from the study of their photometric and spectroscopic properties. However, the presently available data sets of optical and near-infrared light curves of supernovae are rather small and/or heterogeneous, and employ photometric systems that are poorly characterized. Similarly, there are relatively few supernovae whose spectral evolution has been well sampled, both in wavelength and phase, with precise spectrophotometric observations. The low-redshift portion of the Carnegie Supernova Project (CSP) seeks to remedy this situation by providing photometry and spectrophotometry of a large sample of supernovae taken on telescope/filter/detector systems that are well understood and well characterized. During a 5 year program that began in 2004 September, we expect to obtain high-precision u'g'r'i'BVYJHKs light curves and optical spectrophotometry for about 250 supernovae of all types. In this paper we provide a detailed description of the CSP survey observing and data reduction methodology. In addition, we present preliminary photometry and spectra obtained for a few representative supernovae during the first observing campaign.
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