Spectroscopic Classification of PSN J08250876+5416365 as a Type Ia Supernova
ATel #7071; Jujia Zhang (Yunnan Observatories), Wenxiong Li, Hanna Sai, Xiaofeng Wang (Tsinghua University), Tianmeng Zhang (National Astronomical Observatories of China)
on 15 Feb 2015; 01:44 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Tianmeng Zhang (armengjade@gmail.com)
Subjects: Optical, Supernovae, Transient
We report an optical spectrum (range 330-840 nm) of PSN J08250876+5416365 that was obtained on Feb. 14.7 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 about one week after the maximum light. 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 1991T at t = +10 days. Adopting for the host galaxy SDSS J082509.39+541634.8 a recession velocity of 29768 km/s (from 2006SDSS5), we measure a velocity of the Si II 635.5-nm absorption feature as about 10400 km/s.
