Spectroscopic Classification of PSN J07562525+2700488
ATel #5993; Chris Faesi, Allyson Bieryla, Edo Berger, Adam Atanas, Kristin Barclay, Tai Boon Ding, Sam Horan, McKenna Kardish, Tom Leith, Victor Mata, Chris Merchantz, Max Murphy, Sophie Welsh, and Ryan Chornock (Harvard University)
on 21 Mar 2014; 05:31 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: Edo Berger (eberger@cfa.harvard.edu)
Subjects: Optical, Supernovae
We obtained a low-resolution optical spectrum of PSN J07562525+2700488 on 2014 March 21.2 UT using the FAST spectrograph mounted on the F.L. Whipple Observatory 1.5-m telescope. The spectrum was
obtained during an observing trip to FLWO as part of the Harvard Astronomy 100 ("Observational Methods") undergraduate course. Cross-correlation with a library of supernova spectra using the "Supernova Identification" code (SNID; Blondin and Tonry 2007, Ap.J. 666, 1024) shows matches with normal type Ia events approximately 9 days after maximum light. The best match is with SN 2001ep at 8 days post-maximum. After correcting for the host galaxy, UGC 4105, redshift of z = 0.02182 (Ahn et al. 2013, arXiv:1307.7735), the velocity of the minimum of the Si II 635.5 nm feature is
estimated to be approximately -11000 km/s.
