Lick observatory supernova search follow-up program: Photometry data release of 93 type Ia supernovae

Benjamin E. Stahl, Wei Kang Zheng, Thomas de Jaeger, Alexei V. Filippenko, Andrew Bigley, Kyle Blanchard, Peter K. Blanchard, Thomas G. Brink, Samantha K. Cargill, Chadwick Casper, Sanyum Channa, Byung Yun Choi, Nick Choksi, Jason Chu, Kelsey I. Clubb, Daniel P. Cohen, Michael Ellison, Edward Falcon, Pegah Fazeli, Kiera FullerMohan Ganeshalingam, Elinor L. Gates, Carolina Gould, Goni Halevi, Kevin T. Hayakawa, Julia Hestenes, Benjamin T. Jeffers, Niels Joubert, Michael T. Kandrashoff, Minkyu Kim, Haejung Kim, Michelle E. Kislak, Io Kleiser, Jason J. Kong, Maxime de Kouchkovsky, Daniel Krishnan, Sahana Kumar, Joel Leja, Erin J. Leonard, Gary Z. Li, Weidong Li, Philip Lu, Michelle N. Mason, Jeffrey Molloy, Kenia Pina, Jacob Rex, Timothy W. Ross, Samantha Stegman, Kevin Tang, Patrick Thrasher, Xianggao Wang, Andrew Wilkins, Heechan Yuk, Sameen Yunus, Keto Zhang

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


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 (3 SN 1991bg-like, 3 SN 1991T-like, 4 SNe Iax, 2 peculiar, and 3 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 d, and the median first observed epoch is ∼4.6 d 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 data set. We perform an analysis of our light curves with particular focus on using template fitting to measure the parameters that are useful in standardizing 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.

Original languageEnglish (US)
Pages (from-to)3882-3907
Number of pages26
JournalMonthly Notices of the Royal Astronomical Society
Issue number3
StatePublished - Dec 1 2019

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


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