SIMBAD references

M. Hamuy, M. Phillips, and J. Thomas-Osip, Carnegie Observatories, write: "An optical spectrum of SN 2003bg, obtained on Mar. 4 with the Las Campanas Observatory 2.5-m telescope, indicates the presence of strong, broad H_alpha emission with a P- Cyg absorption component with an expansion velocity of -17110 km/s at its minimum. P-Cyg absorption minima apparently corresponding to H_beta and H_gamma are also present at expansion velocities of -14600 and -13650 km/s. Although the overall appearance of the spectrum of SN 2003bg is similar to that of other broad-lined type-Ic events, the presence of strong hydrogen features distinguishes it."