PSN J02455988-0734270 in NGC 1084 is a young type II-P SN
ATel #4306; M. Childress, R. Scalzo, F. Yuan, B. Schmidt (Australian National University)
on 13 Aug 2012; 03:14 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Michael Childress (mjc@mso.anu.edu.au)
Subjects: Optical, Supernovae, Transient
We report the spectroscopic classification of the optical transient PSN J02455988-0734270 in NGC 1084 (disc. 2012-08-11.039 by B. Monard) based on an optical spectrum taken with the Wide Field Spectrograph (WiFeS - Dopita et al., 2007, ApSS, 310, 255) on the ANU 2.3m telescope at Siding Spring Observatory, NSW Australia, using the B3000/R3000 gratings (3600-10000, 1A resolution). The transient spectrum was compared to supernova spectral templates using SNID (Blondin & Tonry, 2007, ApJ, 666, 1024) indicating it to be a supernova of type II-P at a very young age, perhaps only a few days after explosion. The spectrum exhibits high velocities in the Balmer series, and an unusually strong He I 5876 P-Cygni Profile.
