The photospheric spectra of SN 1994I.

Details The photospheric spectra of SN 1994I. The photospheric spectra of SN 1994I.

Apr 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995acaps..15..187z&link_type=abstract

Acta Astrophys. Sin., Vol. 15, No. 2, p. 187 - 190

Astronomy and Astrophysics

Astrophysics

Supernovae: Spectra

Scientific paper

The authors present the photospheric optical spectra of SN 1994I obtained with the 2.16 m reflector of Beijing Astronomical Observatory. The spectra show features of type Ic supernovae as those of SN 1987M did. A Monte Carlo spectrum synthesis code is employed to fit the April 10 spectrum. With the abundances of Nomoto et al. and an altered W7 density structure, the authors get a reasonable fit. For April 10, they find a photospheric velocity of ≡10000 km s-1, and a blackbody temperature of ≡8000K. The mass outside the photosphere at the epoch is 0.365 Msun. The modeling may provide evidence for C+O stars as progenitors of type Ic supernovae.

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