Lick Observatory Supernova Search Follow-Up Program: Photometry Data Release of 93 Type Ia Supernovae
Abstract
We present BVRI and unfiltered light curves of 93 Type Ia supernovae (SNe Ia) from the Lick Observatory Supernova Search (LOSS) follow-up program conducted between 2005 and 2018. Our sample consists of 78 spectroscopically normal SNe Ia, with the remainder divided between distinct subclasses (three SN 1991bg-like, three SN 1991T-like, four SNe Iax, two peculiar, and three super-Chandrasekhar events), and has a median redshift of 0.0192. The SNe in our sample have a median coverage of 16 photometric epochs at a cadence of 5.4 days, and the median first observed epoch is ~4.6 days before maximum B-band light. We describe how the SNe in our sample are discovered, observed, and processed, and we compare the results from our newly developed automated photometry pipeline to those from the previous processing pipeline used by LOSS. After investigating potential biases, we derive a final systematic uncertainty of 0.03 mag in BVRI for our dataset. We perform an analysis of our light curves with particular focus on using template fitting to measure the parameters that are useful in standardising SNe Ia as distance indicators. All of the data are available to the community, and we encourage future studies to incorporate our light curves in their analyses.
Keywords
Cite
@article{arxiv.1909.11140,
title = {Lick Observatory Supernova Search Follow-Up Program: Photometry Data Release of 93 Type Ia Supernovae},
author = {Benjamin E. Stahl and WeiKang Zheng and Thomas de Jaeger and Alexei V. Filippenko and Andrew Bigley and Kyle Blanchard and Peter K. Blanchard and Thomas G. Brink and Samantha K. Cargill and Chadwick Casper and Sanyum Channa and Byung Yun Choi and Nick Choksi and Jason Chu and Kelsey I. Clubb and Daniel P. Cohen and Michael Ellison and Edward Falcon and Pegah Fazeli and Kiera Fuller and Mohan Ganeshalingam and Elinor L. Gates and Carolina Gould and Goni Halevi and Kevin T. Hayakawa and Julia Hestenes and Benjamin T. Jeffers and Niels Joubert and Michael T. Kandrashoff and Minkyu Kim and Haejung Kim and Michelle E. Kislak and Io Kleiser and Jason J. Kong and Maxime de Kouchkovsky and Daniel Krishnan and Sahana Kumar and Joel Leja and Erin J. Leonard and Gary Z. Li and Weidong Li and Philip Lu and Michelle N. Mason and Jeffrey Molloy and Kenia Pina and Jacob Rex and Timothy W. Ross and Samantha Stegman and Kevin Tang and Patrick Thrasher and Xianggao Wang and Andrew Wilkins and Heechan Yuk and Sameen Yunus and Keto Zhang},
journal= {arXiv preprint arXiv:1909.11140},
year = {2019}
}
Comments
29 pages, 13 figures, accepted for publication in MNRAS