Analysis of the Optical Emission Lines of SN 1987A

Details Analysis of the Optical Emission Lines of SN 1987A Analysis of the Optical Emission Lines of SN 1987A

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj.....99..664d&link_type=abstract

Astronomical Journal v.99, p.664

Astronomy and Astrophysics

Astronomy

5

Stars: Supernovae

Scientific paper

A chemical analysis of the ejecta from SN 1987A based on a study of the emission lines is presented. Our main conclusions are: (1) the FWHM of the emission lines in the optical and near infrared are comparable with those observed in γ-ray lines and in the far infrared; (2) the Ca/fe and Mg/Fe elemental ratios are consistent with the solar values; (3) the iron mass estimated from the optical lines agrees with the value derived from the far-infrared data; (4) the O/Fe ratio is higher by a factor of 3 than the solar value, suggesting a contribution to the oxygen enrichment of the LMC.

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