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Spectroscopic classification of ASASSN-18da as a type Ia supernova

ATel #11346; Subo Dong (KIAA-PKU), J. L. Prieto (UDP), D. A. H. Buckley (SAAO), M. Gromadzki (Warsaw)
on 24 Feb 2018; 00:48 UT
Credential Certification: Subo Dong (dongsubo@pku.edu.cn)

Subjects: Optical, Supernovae

We report the optical spectroscopic observation of the supernova candidate ASASSN-18da (2018vw) using SALT/RSS (350.0-920.0 nm) on UT 2018-02-22 18:42:48 taken under the SALT Large Science Program on transients. The target was discovered by All-Sky Automated Survey for Supernovae (ASAS-SN, Shappee et al. 2014) as reported in Atel #11343. We used SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) to identify the type, phase, and redshift of the SN spectra. The spectra matches with 91T-like SNe Ia a few days before peak at an approximate redshift of z=0.02.