Spectroscopic classification of ZTF transients

ATel #15652; Stephanie Figuereo (UCSC), Stefan Kimura (Willamette University), Monika Soraisam (NOIRLab), Rafael Nunez (SFSU), Kevin McKinnon, Puragra Guhathakurta (UCSC)
on 9 Oct 2022; 23:56 UT
Credential Certification: Monika Soraisam (monika.soraisam@noirlab.edu)

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We report the spectroscopic observations of the following transients from the SALVATION project (ATel #13952). They were flagged from the ZTF public alert stream by the ANTARES alert-broker. The spectra were obtained on 2022 October 01 UT for ZTF22abgolxc and ZTF22abfxmpc and 2022 October 02 UT for ZTF22abfvxfg with the Kast double spectrograph on the Shane 3-m telescope at Lick Observatory.

 
Name              | IAU Name         | RA (J2000)       | Dec (J2000)       | z       | Type       | Phase 
ZTF22abgolxc      | AT2022vjk        | 03h50m51.98s     | +40d59m52.4s      | --      | SN         | -- 
ZTF22abfvxfg      | AT2022usa        | 20h50m54.61s     | -03d20m02.9s      | 0.102   | Ia         | -10 to 10 days 
ZTF22abfxmpc      | AT2022ubf        | 00h42m30.05s     | +41d56m12.6s      | 0.0     | He/N nova  | after peak  

Note: Classification for ZTF22abgolxc and ZTF22abfvxfg were performed with DASH (Muthukrishna et al. 2019, arXiv:1903.02557). We could not, however, obtain a clear classification of the SN type for ZTF22abgolxc. Light curves can be accessed at https://antares.noirlab.edu/loci/ANT20227m4dksfhvw8q (ZTF22abgolxc), https://antares.noirlab.edu/loci/ANT2022vs3vhzg7gesw (ZTF22abfvxfg) and https://antares.noirlab.edu/loci/ANT2022t5gbg5l1t1aa (ZTF22abfxmpc).