Modeling the April 15 spectrum of supernova 1993J.

Details Modeling the April 15 spectrum of supernova 1993J. Modeling the April 15 spectrum of supernova 1993J.

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995acaps..15..228z&link_type=abstract

Acta Astrophys. Sin., Vol. 15, No. 3, p. 228 - 232

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Supernovae: Spectra, Supernovae: Line Formation

Scientific paper

The authors present the modeling of the ultraviolet and optical spectra obtained simultaneously on 1993 April 15 with the HST and at Lick Observatory. A Monte Carlo code is employed in the modeling and a comparison is made between models reported by different groups. The observed spectral lines are well reproduced by a power law density structure of index around 20 except the strong Hα and He I λ5876 lines which have peculiar absorption profiles. The photospheric velocity is found to be 9500 km/s and the blackbody temperature of the spectrum is 7990K. For Hα and He I λ5876, the authors suggest a two-component density structure which has a smoother layer located immediately outside the steeply decreasing inner envelope.

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