2005CBET..159....1S

V. Stanishev and A. Goobar, Physics Department, Stockholm University, report that a spectrum (range 350-900 nm) of SN 2005ce (cf. CBET 158), obtained on May 29.2 UT by T. Augusteijn with the Nordic Optical Telescope (+ ALFOSC), shows it to be most likely a type-Ib/c supernova a few days after maximum. The spectrum is blue and, after correcting for the host-galaxy recession velocity (7375 km/s as given by Haynes and Giovanelli 1984, A.J. 89, 758; via NED), is similar to the de-reddened and de-redshifted spectrum of SN 1999ex at 5 days after maximum (Hamuy et al. 2000, A.J. 124, 417). The absorption features at 415 and 630 nm are stronger than in SN 1999ex, and two weak absorptions at 470 and 585 nm, which are not seen in SN 1999ex, are also present.