2004IAUC.8456....4G

Ganeshalingam, Swift, F. J. D. Serduke, and Filippenko add that inspection of CCD spectra obtained on Dec. 17 UT reveals that SN 2004gv (IAUC 8454) is probably of type Ib/Ic, not far from maximum brightness. The O I 777.4-nm line is weak, perhaps suggesting that the supernova is of type Ib rather than Ic (Matheson et al. 2001, A.J. 121, 1648). SN 2004gv appears to be associated with young stars in the outskirts of the type-S0 host galaxy, as evidenced by narrow emission lines typical of H II regions.