SIMBAD references

A. V. Filippenko and R. J. Foley, University of California, Berkeley, report that inspection of CCD spectra (range 320-940 nm), obtained on Dec. 12 UT with the Keck I 10-m telescope (+ LRIS), shows that SN 2004gq is probably of type Ic, roughly 4 days before maximum brightness. Its spectrum generally resembles the pre- maximum spectrum of SN 1994I (Filippenko et al. 1995, Ap.J. 450, L11), but there is an additional, weak absorption line at rest wavelength 635 nm that could be attributed H_alpha. The equivalent width of the narrow interstellar Na I D absorption line at 589 nm is about 0.1 nm. Spectra of SN 2004gr show that it is of type II, probably the II-P variety and roughly a month past explosion, given the well-developed P-Cyg profiles of hydrogen Balmer, Fe II, and other lines.