SIMBAD references

S. Blondin, M. Modjaz, R. Kirshner, and P. Challis, Harvard-Smithsonian Center for Astrophysics, report that a spectrum (range 350-740 nm) of 2006cs (cf. CBET 536), obtained on June 5.29 UT by P. Berlind with the F. L. Whipple Observatory 1.5-m telescope (+ FAST), shows it to be a type-Ia supernova around maximum light. Cross-correlation with a library of type-Ia-supernova spectra indicates that 2006cs is most similar to the subluminous supernova 1999by (see Garnavich et al. 2004, Ap.J., 613, 1120) at -3 days. Adopting a recession velocity of 7026 km/s for the host galaxy (from "The Updated Zwicky Catalog", http://tdc-www.harvard.edu/uzc/), the maximum absorption in the Si II line (rest 635.5 nm) is blueshifted by roughly 10500 km/s.