Multi-color Optical and Near-infrared Light Curves of 64 Stripped-envelope Core-Collapse Supernovae
Abstract
We present a densely sampled, homogeneous set of light curves of 64 low-redshift (z <~ 0.05) stripped-envelope supernovae (SNe of Type IIb, Ib, Ic, and Ic-BL). These data were obtained between 2001 and 2009 at the Fred L. Whipple Observatory (FLWO) on Mount Hopkins in Arizona, with the optical FLWO 1.2 m and the near-infrared (NIR) Peters Automated Infrared 1.3 m telescopes. Our data set consists of 4543 optical photometric measurements on 61 SNe, including a combination of {U\!BV\!RI}, {U\!BV\!r^{\prime }i^{\prime }}, and {u^{\prime }\!BV\!r^{\prime }i^{\prime }}, and 1919 JHKs NIR measurements on 25 SNe. This sample constitutes the most extensive multi-color data set of stripped-envelope SNe to date. Our photometry is based on template-subtracted images to eliminate any potential host-galaxy light contamination. This work presents these photometric data, compares them with data in the literature, and estimates basic statistical quantities: date of maximum, color, and photometric properties. We identify promising color trends that may permit the identification of stripped-envelope SN subtypes from their photometry alone. Many of these SNe were observed spectroscopically by the Harvard-Smithsonian Center for Astrophysics (CfA) SN group, and the spectra are presented in a companion paper. A thorough exploration that combines the CfA photometry and spectroscopy of stripped-envelope core-collapse SNe will be presented in a follow-up paper.
- Publication:
-
The Astrophysical Journal Supplement Series
- Pub Date:
- August 2014
- DOI:
- 10.1088/0067-0049/213/2/19
- arXiv:
- arXiv:1405.1428
- Bibcode:
- 2014ApJS..213...19B
- Keywords:
-
- supernovae: general;
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 26 pages, 17 figures, 8 tables. Revised version resubmitted to ApJ Supplements after referee report. Additional online material is available through http://cosmo.nyu.edu/SNYU/