2006CBET..492....1M

N. Morrell, G. Folatelli, M. Roth, and S. Gonzalez, on behalf of the Carnegie Supernova Project, report that spectroscopic observations (range 380-920 nm) of SN 2006bh (cf. IAUC 8697, CBET 457) obtained on Apr. 24.40 UT and of SN 2006bn (cf. IAUC 8699, CBET 467) on Apr. 23.29 and 26.22, with the WFCCD spectrograph attached to the 2.5-m du Pont telescope at Las Campanas Observatory, reveal that both are type-Ia supernovae. A spectral-feature age (Riess et al. 1997, A.J. 114, 722) of 14 days past maximum was derived for SN 2006bh. The spectrum of SN 2006bn resembles those of SN 1999bv (Matheson et al. 2001, A.J. 121, 1648) and SN 1996X at 57 days past maximum light, as determined by means of the 'superfit' supernova-spectrum-comparison code (Howell et al. 2005, Ap.J. 634, 1190). SN 2006bn is thus classified as a type-Ia supernova, 2 or 3 months past maximum.