2008CBET.1503....1S

J. M. Silverman, M. Modjaz, M. R. George, and A. V. Filippenko, University of California, Berkeley, report that inspection of CCD spectra (range 330-1050 nm), obtained on Sept. 7 and 8 UT with the 3-m Shane reflector (+ Kast) at Lick Observatory, shows that 2008fe (CBET 1485) is a type-IIP supernova, about one month after explosion. After removing the host-galaxy recession velocity (9280 km/s; de Vaucouleurs et al. 1991, Third Reference Catalogue of Bright Galaxies), the minimum of the H-alpha absorption is found to be blueshifted by about 5700 km/s. SN 2008fg (CBET 1489) is of type Ia, roughly 3 months after maximum brightness. SNe 2008fi (CBET 1493) and 2008fk (CBET 1494) are of types IIb (shortly after maximum) and Ia (a few days before maximum), respectively – in agreement with the results reported on CBET 1499. After removal of the 2008fk's host-galaxy redshift of 0.07, determined from narrow emission lines, the absorption minimum of the Si II 635.5-nm feature is found to be blueshifted by about 11000 km/s. The above spectral types and ages were obtained through cross-correlation with a library of supernova spectra using the "SuperNova IDentification" code (Blondin and Tonry 2007, Ap.J. 666, 1024).