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Spectroscopic Classification of ASASSN-16ad (= AT 2016F) as a Type Ia Supernova

ATel #8532; Liming Rui, Xiaofeng Wang, Fang Huang (Tsinghua University), Tiameng Zhang, Meng Zhai (NAOC)
on 11 Jan 2016; 13:48 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Xiaofeng Wang (wang_xf@mail.tsinghua.edu.cn)

Subjects: Optical, Supernovae, Transient

We report an optical spectrum (range 370-870 nm) of ASASSN-16ad (ATEL 8521) that was obtained on UT Jan.10.6 2016 with the 2.16-m telescope (+BFOSC) at the Xinglong Station of National Astronomical Observatories of China. The spectrum is consistent with that of a type Ia supernova at a few days before the maximum light. After correcting for a redshift of 0.016 for its host galaxy PGC 006137, an expansion velocity of about 14600 km/s can be derived from the absorption minimum of Si II 635.5 nm line.