SIMBAD references

M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian Center for Astrophysics, report that a spectrum (range 350-740 nm) of SN 2005cf (cf. CBET 158), obtained on May 31.22 UT by P. Berlind with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a type-Ia supernova, around ten (or more) days before maximum light. The supernova expansion velocity, derived from the minimum of Si II (rest 635.5 nm), and adopting the NED recession velocity of 1937 km/s for the host galaxy (de Vaucouleurs et al. 1991, Third Reference Catalogue of Bright Galaxies, ver. 3.9), is about 15000 km/s.