SIMBAD references

Further to IAUC 8091, T. Matheson et al. write that a spectrum of SN 2003cg, obtained by L. Macri on Mar. 25.23 UT, shows it to be a highly reddened, possibly subluminous type-Ia supernova near maximum. Adopting the NED recession velocity (1238 km/s) for the host galaxy, the supernova expansion velocity is 11500 km/s for Si II (rest 635.5 nm). Several titanium absorption features appear stronger than usual, with the entire spectrum resembling that of the subluminous SN 1999by just before maximum (see Garnavich et al. 2003, Ap.J., in press; http://xxx.lanl.gov/abs/astro-ph/?0105490). The spectrum shows a strong narrow Na I D absorption at the velocity of the host galaxy with an equivalent width of 0.55 nm. There are several other narrow absorptions in the spectrum that appear to coincide with known diffuse interstellar bands (e.g., 544.9, 578.0, 628.3 nm, etc.) at the host velocity. In addition, the overall shape of the spectrum declines toward the blue, implying that the supernova is heavily extinguished by dust. The Schlegel et al. (1998, Ap.J. 500, 525) dust maps indicate a low value for Galactic reddening of E(B-V) = 0.031.