Carnegie Supernova Project-II: Extending the Near-infrared Hubble Diagram for Type Ia Supernovae to z ∼ 0.1

The Carnegie Supernova Project-II (CSP-II) was an NSF-funded, four-year program to obtain optical and near-infrared observations of a “Cosmology” sample of ∼ 100 Type Ia supernovae located in the smooth Hubble flow (0.03 . z . 0.10). Light curves were also obtained of a “Physics” sample composed of...

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Detalles Bibliográficos
Autores principales: Phillips, M. M., Contreras, Carlos, Hsiao, E. Y., Morrell, Nidia Irene, Burns, Christopher R., Stritzinger, Maximilian, Ashall, C., Freedman, Wendy L., Hoeflich, P., Persson, S. E., Piro, Anthony L., Suntzeff, Nicholas B., Uddin, Syed A., Anais, Jorge, Baron, E., Busta, Luis, Campillay, Abdo, Castellón, Sergio, Corco, Carlos, Diamond, T., Gall, Christa, Gonzalez, Consuelo, Holmbo, Simon, Krisciunas, Kevin, Roth, Miguel, Serón, Jacqueline, Taddia, F., Torres, Simón, AndersonJ. P., Baltay, C., Folatelli, Gastón, Galbany, L., Goobar, A., Hadjiyska, Ellie, Hamuy, Mario, Kasliwal, Mansi, Lidman, C., Nugent, Peter E., Perlmutter, S., Rabinowitz, David, Ryder, Stuart D., Schmidt, Brian P., Shappee, B. J., Walker, Emma S.
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Ciencias Astronómicas
cosmology: observations
galaxies: distances and redshifts
supernovae: general
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124798
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:The Carnegie Supernova Project-II (CSP-II) was an NSF-funded, four-year program to obtain optical and near-infrared observations of a “Cosmology” sample of ∼ 100 Type Ia supernovae located in the smooth Hubble flow (0.03 . z . 0.10). Light curves were also obtained of a “Physics” sample composed of 90 nearby Type Ia supernovae at z ≤ 0.04 selected for near-infrared spectroscopic time-series observations. The primary emphasis of the CSP-II is to use the combination of optical and near-infrared photometry to achieve a distance precision of better than 5%. In this paper, details of the supernova sample, the observational strategy, and the characteristics of the photometric data are provided. In a companion paper, the near-infrared spectroscopy component of the project is presented.

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