Chemical abundance in the SN 1987A ejecta

Details Chemical abundance in the SN 1987A ejecta Chemical abundance in the SN 1987A ejecta

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.240..179d&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 240, Sept. 1, 1989, p. 179-188.

Astronomy and Astrophysics

Astronomy

3

Abundance, Metallicity, Stellar Envelopes, Stellar Spectra, Supernova Remnants, Supernova 1987A, Absorption Spectra, Forbidden Transitions, Heavy Elements, Line Spectra, Oxygen Spectra, Stellar Mass

Scientific paper

A simple model has been considered for the region where the absorption features are formed in the spectrum of SN 1987A. Taking into account the proposed identifications for those features, the heavy-element abundances in the reversing layer have been estimated. The abundances are consistent with the actual LMC metallicity. From the forbidden oxygen lines, an ejected hydrogen-mass has been estimated at around 9 solar masses and a total envelope mass of around 14-15 solar masses if helium is enriched by 40 percent with respect to the normal value.

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