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DAO spectroscopic classification of ASASSN-16fa = AT 2016cct in UGC 6434

ATel #9047; D. D. Balam (Dominion Astrophysical Observatory) and M. L. Graham ( University of Washington)
on 13 May 2016; 08:35 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: David D. Balam (cosmos@uvic.ca)

Subjects: Optical, Supernovae

A spectrum of ASASSN-16fa = 2016cct (ATEL #9045) was obtained using the 1.82-m Plaskett telescope (National Research Council of Canada) covering the range 375-710 nm (resolution 0.35 nm) on UT May 13.26 that reveals the object to be a type-Ia (normal) supernova near maximum light. Cross-correlation of the spectrum with a template library using SNID (Blondin & Tonry 2007, ApJ, 666, 1024) has yielded a good fit to the type-Ia supernova 1996X at phase T = -1 day. The apparent host galaxy is UGC 6434 with a published (Huchra, J. P. et al., 2012, ApJ Supp. 199) redshift of z = 0.034. If we assume that the redshift is correct for the supernova then we measure an expansion velocity for the Si II (rest 635.5 nm) feature of 10,400 km/s.