2008CBET.1580....2S

F. Salgado, N. Morrell, and M. Stritzinger, on behalf of the Carnegie Supernova Project, report that on Nov. 23.1 UT they obtained spectra (range 380-923 nm) of 2008hh (cf. CBET 1575) and 2008hi (cf. CBET 1578) with the 2.5-m du Pont telescope (+ WFCCD) at Las Campanas Observatory. Comparison with a library of supernovae spectra (Blondin and Tonry 2007, Ap.J. 666, 1024) indicates that 2008hh is a type-Ic supernova, similar to 2004aw, near maximum light. Nebular emission lines are observed in the spectrum at a redshift of z = 0.020, coincident with that of the host galaxy (0.0194 as measured by Scneider et al. 1990, Ap.J. Suppl. 72, 245). The spectrum of 2008hi is that of a subluminous type-Ia supernova past maximum light. The spectrum contains Ti II absorption at 420 nm and Si II absorption at 615 nm. They find the spectrum of 2008hi to be similar to that of SN 2005ke around two weeks past maximum; adopting a host-galaxy recession velocity of 4037 km/s (Fisher et al. 1995, Ap.J. Suppl. 100, 69), Si II is measured to be blue-shifted by roughly 10500 km/s.