2012CBET.3087....2M

N. Morrell, Las Campanas Observatory; P. Lopez and P. Lira, Universidad de Chile; G. Pignata and F. Bufano, Universidad Andres Bello, report that an optical spectrogram (range 370-910 nm) of PSN J18081305-6223542 = SN 2012bt, obtained on Mar. 29.37 UT with the du Pont 2.5-m telescope (+ WFCCD) at Las Campanas Observatory, shows it to be a type-Ic supernova. Using a recession velocity of 4314 km/s for IC 4674 (Mathewson et al. 1992, Ap.J. Suppl. 81, 413; via NED), GELATO (Harutyunyan et al. 2008, A.Ap. 488, 383; publicly available at https://gelato.tng.iac.es) indicates that the best matches for this spectrum are with spectra of the type-Ic supernova 2004aw (Taubenberger et al. 2006, MNRAS 371, 1459) at one month after the maximum light.