Spectroscopic Classification of PSN J08351668+4819011 as a Young Type Ia Supernova
ATel #6852; Jujia Zhang(Yunnan Observatories), Xiaofeng Wang, Wenxiong Li, Jun Mo, Juncheng Chen (Tsinghua University), and Tianmeng Zhang (NAOC)
on 28 Dec 2014; 00:14 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 spectrogram (range 340-870 nm) of PSN J08351668+4819011 that was obtained on 2014 Dec.27.7 UT with the 2.4-m telescope (+YFOSC) at LiJiang Gaomeigu Station of Yunnan Observatories. The spectrum is similar to that of a type Ia supernovae in very early phase. Cross-correlation with a library of supernova spectra using the comparison tool SNID (Blondin and Tonry 2007, ApJ, 666, 1024) shows that it matches with SN 2002cd at t = -9.0 days. Given a redshift of 0.043 for the host galaxy, an expansion velocity of above 17000 km/s can be deduced from the Si II 635.5 absorption minimum. Follow up observations are encouraged.
