1. The Lick Observatory Supernova Search follow-up program: photometry data release of 70 SESNe
- Author
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WeiKang Zheng, Benjamin E Stahl, Thomas de Jaeger, Alexei V Filippenko, Shan-Qin Wang, Wen-Pei Gan, Thomas G Brink, Ivan Altunin, Raphael Baer-Way, Andrew Bigley, Kyle Blanchard, Peter K Blanchard, James Bradley, Samantha K Cargill, Chadwick Casper, Teagan Chapman, Vidhi Chander, Sanyum Channa, Byung Yun Choi, Nick Choksi, Matthew Chu, Kelsey I Clubb, Daniel P Cohen, Paul A Dalba, Asia deGraw, Maxime de Kouchkovsky, Michael Ellison, Edward Falcon, Ori D Fox, Kiera Fuller, Mohan Ganeshalingam, Nachiket Girish, Carolina Gould, Goni Halevi, Andrew Halle, Kevin T Hayakawa, Romain Hardy, Julia Hestenes, Andrew M Hoffman, Michael Hyland, Benjamin T Jeffers, Connor Jennings, Michael T Kandrashoff, Anthony Khodanian, Minkyu Kim, Haejung Kim, Michelle E Kislak, Daniel Krishnan, Sahana Kumar, Snehaa Ganesh Kumar, Joel Leja, Erin J Leonard, Gary Z Li, Weidong Li, Ji-Shun Lian, Evelyn Liu, Thomas B Lowe, Philip Lu, Emily Ma, Michelle N Mason, Michael May, Kyle McAllister, Emma McGinness, Shaunak Modak, Jeffrey Molloy, Yukei S Murakami, Omnarayani Nayak, Derek Perera, Kenia Pina, Druv Punjabi, Andrew Rikhter, Timothy W Ross, Jackson Sipple, Costas Soler, Samantha Stegman, Haynes Stephens, James Sunseri, Kevin Tang, Stephen Taylor, Patrick Thrasher, Schuyler D Van Dyk, Xiang-Gao Wang, Jeremy Wayland, Andrew Wilkins, Abel Yagubyan, Heechan Yuk, Sameen Yunus, and Keto D Zhang
- Subjects
Space and Planetary Science ,distances and redshifts [galaxies] ,Astronomy and Astrophysics ,Astronomy & Astrophysics ,general [supernovae] ,Astronomical and Space Sciences - Abstract
We present BVRI and unfiltered (Clear) light curves of 70 stripped-envelope supernovae (SESNe), observed between 2003 and 2020, from the Lick Observatory Supernova Search follow-up program. Our SESN sample consists of 19 spectroscopically normal SNe Ib, 2 peculiar SNe Ib, six SNe Ibn, 14 normal SNe Ic, 1 peculiar SN Ic, 10 SNe Ic-BL, 15 SNe IIb, 1 ambiguous SN IIb/Ib/c, and 2 superluminous SNe. Our follow-up photometry has (on a per-SN basis) a mean coverage of 81 photometric points (median of 58 points) and a mean cadence of 3.6 d (median of 1.2 d). From our full sample, a subset of 38 SNe have pre-maximum coverage in at least one passband, allowing for the peak brightness of each SN in this subset to be quantitatively determined. We describe our data collection and processing techniques, with emphasis toward our automated photometry pipeline, from which we derive publicly available data products to enable and encourage further study by the community. Using these data products, we derive host-galaxy extinction values through the empirical colour evolution relationship and, for the first time, produce accurate rise-time measurements for a large sample of SESNe in both optical and infrared passbands. By modelling multiband light curves, we find that SNe Ic tend to have lower ejecta masses and lower ejecta velocities than SNe Ib and IIb, but higher 56Ni masses.
- Published
- 2022