Spectroscopic Classification of PSN J16025128+4713292 as a Type Ia Supernova
ATel #7544; Jujia Zhang (Yunnan Observatories), Xiaofeng Wang (Tsinghua University)
on 21 May 2015; 02:57 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 340-890 nm) of PSN J16025128+4713292 that was obtained on May 20.7 2015 UT with the 2.4-m telescope (+YFOSC) at LiJiang Gaomeigu Station of YNAO. The spectrum is consistent with a type Ia supernova at a relatively young phase. 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 SN 2007le at t = -7 days. Adopting a recession velocity of 6072 km/s for its host galaxy UGC 10156, an expansion velocity of about 15200 km/s can be derived from the absorption minimum of Si II 635.5 nm.
