Spectroscopic Classification of SN 2016cor as a Type Ia Supernova
ATel #9103; Jujia Zhang (YNAO); Tianmeng Zhang (NAOC); Wenxiong Li, Xiaofeng Wang (Tsinghua University)
on 31 May 2016; 17:39 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Ju-Jia Zhang (jujia@ynao.ac.cn)
Subjects: Optical, Supernovae
We obtained an optical spectrum (range 380-870 nm) of SN 2016cor (AT2016cor), discovered by the Tsinghua-NAOC Transient Survey (TNTS), on UT May 31.68 2016 with the 2.4 m telescope (LJT + YFOSC) at Lijiang Observatory of Yunnan Observatories (YNAO). The spectrum is consistent with a type Ia supernova at a few days before the maximum light. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, ApJ, 666, 1024) shows that it matches with SN 2007A at t = -2.4 days from the maximum light. After correcting for a redshift of 0.049 for its host galaxy SDSS J154431.47+161814.0, an expansion velocity of about 9500 km/s can be derived from the absorption minimum of Si II 635.5 nm.
