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Spectroscopic Classification of ASASSN-15uy as a Type IIb Supernova

ATel #8525; Liming Rui, Xiaofeng Wang, Fang Huang (Tsinghua University), Tiameng Zhang, Meng Zhai (NAOC)
on 10 Jan 2016; 00:21 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 380-850 nm) of ASASSN-15uy (ATEL 8491) that was obtained on UT Jan. 08.9 2015 with the 2.16-m telescope (+BFOSC) at Xinglong Station of National Astronomical Observatories of China. Cross-correlation with a library of supernova spectra using the spectral comparison tool Gelato (Harutyunyan et al., 2008, A&A, 488, 383) shows that the spectrum matches with a few type IIb supernovae within 1-2 weeks from the maximum light.