2003IAUC.8225....2M

T. Matheson, P. Challis, and R. Kirshner, Harvard-Smithsonian Center for Astrophysics, write that a spectrum (range 370-750 nm) of SN 2003io (IAUC 8214), obtained by P. Berlind on Oct. 16.49 UT with the Mt. Hoplins 1.5-m telescope (+ FAST), shows it to be a type-II supernova with well-developed hydrogen P-Cyg lines; adopting the NED recession velocity of 4010 km/s for UGC 1761, the expansion velocity derived from the minimum of the H_beta line is 7300 km/s. A spectrum of SN 2003iq (IAUC 8219), taken on Oct. 16.47, shows it to be also a type-II supernova with a very blue continuum with P-Cyg lines of hydrogen and helium; adopting the NED recession velocity of 2458 km/s for NGC 772, the expansion velocity derived from the minimum of the H_beta line is 10500 km/s. A spectrum of SN 2003is (IAUC 8224), taken on Oct. 16.18, shows it to be a type-Ic supernova, probably before maximum; the spectrum is similar to that of SN 1994I, five days before maximum (Filippenko et al. 1995, Ap.J. 450, L11).