Spectroscopic Classification of Two Supernova Candidates with the Lick 3-m Shane Telescope

ATel #12202; Subhash Bose, Subo Dong, Ping Chen (KIAA-PKU), T. G. Brink, Thomas de Jaeger, A. V. Filippenko, and W. Zheng (UCB)
on 11 Nov 2018; 05:21 UT
Credential Certification: Subhash Bose (bose@pku.edu.cn)

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We report optical spectroscopic observations of supernova candidates ASASSN-18zk (ATel #12194) and ZTF18acbvgqw using the Kast spectrograph mounted on the 3-m Shane telescope at Lick Observatory. The targets were discovered by the All-Sky Automated Survey for Supernovae (ASAS-SN; Shappee et al. 2014) and the Zwicky Transient Facility (ZTF; ATel #11266). We used SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) to identify the supernova types and phases from the spectra.

 
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 Survey Name  | IAU Name   | UT Obs. Date  | Spec. Type | Phase (peak brightness)   | Redshift      
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 ASASSN-18zk  | SN 2018hzg | 2018-11-09.55 |   Ia       | a week before maximum     | 0.02169 (NED) 
 ZTF18acbvgqw | SN 2018htt | 2018-11-09.30 |   Ia       | a few days before maximum | 0.00867 (NED) 
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Note: The SNID estimated redshifts of these supernovae are consistent with those of their host galaxies.