The Lick Observatory Supernova Search follow-up program: photometry data release of 70 stripped-envelope supernovae
Creators: name: Zheng, WeiKang
name: Stahl, Benjamin E.
name: de Jaeger, Thomas
name: Filippenko, Alexei V.
name: Wang, Shan-Qin
name: Gan, Wen-Pei
name: Brink, Thomas G.
name: Altunin, Ivan
name: Baer-Way, Raphael
name: Bigley, Andrew
name: Blanchard, Kyle
name: Blanchard, Peter K.
name: Bradley, James
name: Cargill, Samantha K.
name: Casper, Chadwick
name: Chapman, Teagan
name: Chander, Vidhi
name: Channa, Sanyum
name: Choi, Byung Yun
name: Choksi, Nick
name: Chu, Matthew
name: Clubb, Kelsey I.
name: Cohen, Daniel P.
name: Dalba, Paul A.
name: deGraw, Asia
name: de Kouchkovsky, Maxime
name: Ellison, Michael
name: Falcon, Edward
name: Fox, Ori D.
name: Fuller, Kiera
name: Ganeshalingam, Mohan
name: Girish, Nachiket
name: Gould, Carolina
name: Halevi, Goni
name: Halle, Andrew
name: Hayakawa, Kevin T.
name: Hardy, Romain
name: Hestenes, Julia
name: Hoffman, Andrew M.
name: Hyland, Michael
name: Jeffers, Benjamin T.
name: Jennings, Connor
name: Kandrashoff, Michael T.
name: Khodanian, Anthony
name: Kim, Minkyu
name: Kim, Haejung
name: Kislak, Michelle E.
name: Krishnan, Daniel
name: Kumar, Sahana
name: Kumar, Snehaa Ganesh
name: Leja, Joel
name: Leonard, Erin J.
name: Li, Gary Z.
name: Li, Weidong
name: Lian, Ji-Shun
name: Liu, Evelyn
name: Lowe, Thomas B.
name: Lu, Philip
name: Ma, Emily
name: Mason, Michelle N.
name: May, Michael
name: McAllister, Kyle
name: McGinness, Emma
name: Modak, Shaunak
name: Molloy, Jeffrey
name: Murakami, Yukei S.
name: Nayak, Omnarayani
name: Perera, Derek
name: Pina, Kenia
name: Punjabi, Druv
name: Rikhter, Andrew
name: Ross, Timothy W.
name: Sipple, Jackson
name: Soler, Costas
name: Stegman, Samantha
name: Stephens, Haynes
name: Sunseri, James
name: Tang, Kevin
name: Taylor, Stephen
name: Thrasher, Patrick
name: Van Dyk, Schuyler D.
name: Wang, Xiang-Gao
name: Wayland, Jeremy
name: Wilkins, Andrew
name: Yagubyan, Abel
name: Yuk, Heechan
name: Yunus, Sameen
name: Zhang, Keto D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: 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 (LOSS) follow-up program. Our SESN sample consists of 19 spectroscopically normal SNe~Ib, two peculiar SNe Ib, six SN Ibn, 14 normal SNe Ic, one peculiar SN Ic, ten SNe Ic-BL, 15 SNe IIb, one ambiguous SN IIb/Ib/c, and two 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 3.6d (median of 1.2d). 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 modeling 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 $^{56}$Ni masses.
description: Accepted by MNRAS