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slugcomment: Submitted to ApJ Supplements Multi-color Optical and NIR Light Curves of 64 Stripped-Envelope Core-Collapse Supernovae
  • federica B bianco
federica B bianco

Corresponding Author:[email protected]

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Abstract

slugcomment: Submitted to ApJ Supplements

We present a densely-sampled, homogeneous set of light curves of \(64\) low redshift (\(z\lesssim 0.05\)) stripped-envelope supernovae (SN of type IIb, Ib, Ic and Ic-bl). These data were obtained between 2001 and 2009 at the Fred L. Whipple Observatory (FLWO) on Mt. Hopkins in Arizona, with the optical FLWO 1.2-m and the near-infrared PAIRITEL 1.3-m telescopes. Our dataset consists of \(4543\) optical photometric measurements on \(61\) SN, including a combination of \(U\!BV\!RI\), \(U\!BV\!r^{\prime}i^{\prime}\), and \(u^{\prime}\!BV\!r^{\prime}i^{\prime}\), and \(2142\) \(JHK_{s}\) near-infrared measurements on \(25\) SN.

This sample constitutes the most extensive multi-color data set of stripped-envelope SN 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 SN were observed spectroscopically by the CfA SN group, and the spectra are presented in a companion paper \citep{Modjaz14}. A thorough exploration that combines the CfA photometry and spectroscopy of stripped-envelope core-collapse SN will be presented in a follow-up paper.