Spectroscopic Classification of PSN J10292799+2200468 as a Type Ia Supernova
ATel #6748; Jujia Zhang(Yunnan Observatories) and Xiaofeng Wang (Tsinghua University)
on 25 Nov 2014; 09:58 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Xiaofeng Wang (wang_xf@mail.tsinghua.edu.cn)
Subjects: Optical, Supernovae, Transient
Referred to by ATel #: 6764
We report an optical spectrogram (range 330-860 nm) of PSN J10292799+2200468 that was obtained on 2014 Nov.24.9 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 around the maximum light. Cross-correlation with a library of supernova spectra using the comparison tool Gelato (Harutyunyan et al. 2008, A&A, 488, 383) shows that it matches with SN 1981B at t = +3 days. Given a redshift of 0.05445 for the host galaxy UGC 5691 (Sloan Digital Sky Survey Data Release 6), an expansion velocity of about 12000 km/s can be deduced from the Si II 635.5 absorption minimum.
