2012CBET.2984....2D

M. R. Drout, D. Milisavljevic, E. Berger, N. Sanders, and A. M. Soderberg, Harvard University, report on low-dispersion spectra (range 330-850 nm) taken on Jan. 19 UT with the 6.5-m MMT (+ Blue Channel). PSN J05201494-2518563 = SN 2012H is a type-Ia supernova near maximum light. Comparison with a library of supernova spectra using the "Supernova Identification" tool (SNID; Blondin and Tonry 2007, Ap.J., 666, 1024) provides a good match with supernova 1994D at three days after maximum. Using the host galaxy (IC 411) redshift of z = 0.03185 (da Costa et al. 1991, Ap.J. Suppl. 75, 935), the velocity of the Si II 635.5-nm feature is estimated to be approximately 11000 km/s.