CSP spectroscopic classification of J11405890-442957
ATel #6082; N. Morrell, E. Y. Hsiao, M. Phillips, F. di Mille, D. Osip, P. Palunas, and Y. Beletsky (LCO)
on 21 Apr 2014; 02:17 UT
Credential Certification: Nidia Morrell (firstname.lastname@example.org)
Subjects: Optical, Supernovae
The Carnegie Supernova Project reports the spectroscopic classification of PSN J11405890-442957 (discovered by G. Bock from the BOSS collaboration) based on an optical sepctrum (range 370-950 nm) obtained at Las Campanas Observatory with the 6.5-m Magellan Baade telescope (+IMACS) on April 19, UT. The classification was made using the Supernova Identification code (SNID, Blondin & Tonry 2007, Ap. J. 666, 1024) and it shows J11405890-442957 is a normal type Ic supernova a few days before maximum light, similar to 2005aw at 2 days before maximum brightness.
Strong emission lines from a surrounding H II region at the redshift of the host galaxy ESO 266-G015 (zc = 3171 km/s, HI Parkes All Sky Survey Final Catalog, via NED) are observed on the supernova spectrum.