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

abstract

  • © 2018. The Astronomical Society of the Pacific. All rights reserved. Printed in the U.S.A. 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 timeseries 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.

altmetric score

  • 9.58

author list (cited authors)

  • Phillips, M. M., Contreras, C., Hsiao, E. Y., Morrell, N., Burns, C. R., Stritzinger, M., ... Walker, E. S.

citation count

  • 25

complete list of authors

  • Phillips, MM||Contreras, Carlos||Hsiao, EY||Morrell, Nidia||Burns, Christopher R||Stritzinger, Maximilian||Ashall, C||Freedman, Wendy L||Hoeflich, P||Persson, SE||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||Anderson, JP||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, BJ||Walker, Emma S

publication date

  • November 2018