LJT Spectroscopic Classification of ATLAS19lex (AT2019fpq) as a 91T-like SN Ia around maximum
ATel #12799; Jujia Zhang, Xiaoguang Yu (YNAO); Xiaofeng Wang (THU)
on 23 May 2019; 13:31 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 350-880 nm) of ATLAS19lex (AT2019fpq), discovered by ATLAS, on UT 2019 May 22.7 with the Li-Jiang 2.4 m telescope (LJT+YFOSC) at the Li-Jiang Observatory of Yunnan Observatories. The spectrum is matched to the 91T-like events around the maximum. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J., 666, 1024) shows that it matches with 2005hj at t = +2 days. Given a redshift of 0.07 for the host galaxy (via SNID fitting), an expansion velocity of about 10500 km/s can be deduced from absorption minimum of the Si II 6355.
