2012CBET.3263....3T

K. Takaki, R. Itoh, I. Ueno, T. Urano, Y. Moritani, H. Akitaya, and K. S. Kawabata, Hiroshima University; and M. Yamanaka, Kyoto University, obtained a low-resolution optical spectrogram (range 460-900 nm) of PSN J10433405+2453290 = SN 2012fh on Oct 20.7 UT with the 1.5-m Kanata telescope (+ HOWPol) at Higashi-Hiroshima Observatory. The spectrum is characterized by broad emission lines including [O I] (630.0 and 636.3 nm) and the Ca II infrared triplet. A comparison with a library of supernova spectra using GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383) suggests that 2012fh is a type-Ib/c supernovae at more than a hundred days after maximum light. The best-fit is to the type-Ic supernova 2007I at 155 days. This is consistent with the detection in Spitzer mid-infrared pre-discovery images taken on July 9 and 14 (Prieto 2012, at website URL http://www.astronomerstelegram.org/?read=4502).