Spectroscopic Classification of ASAS15ae as a Type Ia Supernova
ATel #6897; Wenxiong Li, Xiaofeng Wang (Tsinghua University), Tianmeng Zhang (National Astronomical Observatories of China)
on 11 Jan 2015; 04:08 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 #: 6899
We report an optical spectrogram (range 370-850 nm) of ASAS15ae (ATel 6870) that was obtained on 2015 Jan.08.93 UT with the 2.16-m telescope (+BFOSC) at Xinglong Station of NAOC. The spectrum is similar to that of a type Ia supernovae around the maximum. 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 = -1.0 days. Given a redshift of 0.031 for the host galaxy, an expansion velocity of about 11900 km/s can be deduced from the Si II 635.5 absorption minimum.
