Spectroscopic Classification of ASASSN-16fj/AT2016cmn as a Type Ia SN
ATel #9075; D. M. Terndrup, G. Calhoun, R. Cannata, J. Schulze (OSU), S. Dong (KIAA-PKU), J. L. Prieto (UDP; MAS)
on 23 May 2016; 14:44 UT
Credential Certification: Jose L. Prieto (jose.prietok@mail.udp.cl)
Subjects: Optical, Supernovae, Transient
We obtained an optical spectrum (range 397-686nm) of ASASSN-16fj/AT2016cmn (ATel #9073) on UT 2016 May. 21.4 with OSMOS mounted on the MDM 2.4-m telescope. The spectrum of ASASSN-16fj/AT2016cmn is that of a normal Type Ia SN before maximum light. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin & Tonry 2007, ApJ, 666, 1024) shows that the best match is the normal Type Ia SN1994D at -4 days. After correcting the spectrum for the redshift of the host galaxy, we measure a Si II 635.5nm expansion velocity of 11000 km/s.
