Type determination for SN 2004gw and SN 2005D

Astronomy and Astrophysics – Astronomy

Scientific paper

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Optical, Nova, Supernova

Scientific paper

Avishay Gal-Yam reports for the Caltech Core-Collapse Program (CCCP): We have observed the unidentified supernovae SN 1994gw (Puckett & Ireland et al., IAUC #8459), and SN 2005D (Burket & Li, IAUC #8464) with the DBSP spectrograph mounted on the 200" Hale Telescope at Palomar observatory. Preliminary analysis shows that SN 1994gw is of type I. Numerous features redward of 600 nm, as well as the overall red continuum, suggest it is a type Ic, but final reduction of the spectra is required for a secure ID.

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