The remarkable spectrum of some material ejected by Eta Carinae

Details The remarkable spectrum of some material ejected by Eta Carinae The remarkable spectrum of some material ejected by Eta Carinae

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...254l..47d&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 254, Mar. 15, 1982, p. L47-L51.

Astronomy and Astrophysics

Astrophysics

96

Stellar Envelopes, Stellar Mass Ejection, Stellar Spectra, Stellar Winds, Supergiant Stars, Carbon, Ejecta, Iue, Line Spectra, Nitrogen Ions, Oxygen, Spectrograms

Scientific paper

Some of the outer condensations of the very massive star Eta Carinae have emission-line spectra which convey clues to the nature of the star from which they were ejected. Ground-based spectrograms as well as ultraviolet IUE data on the brightest such condensation is described. Excess nitrogen presumably resulting from the C/N/O cycle implies that the star is at least moderately evolved. The facts seem consistent with recent suggestions that turbulent mixing, combined with mass loss, causes a very massive star like Eta Carinae to evolve quasi-homogeneously.

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