The ejecta of η Carinae

Details The ejecta of η Carinae The ejecta of η Carinae

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007hia....14..204g&link_type=abstract

Highlights of Astronomy, Volume 14, p. 204-204

Astronomy and Astrophysics

Astronomy

Stars: Individual (Η Car), Winds, Mass Loss, Abundances, Binaries

Scientific paper

High-dispersion spectroscopic observations of the neutral Homunculus and the ionized Little Homunculus, ejecta of η Car, are being analyzed to determine the relative abundances of metals. Thousands of lines of neutral and singly-ionized metals and molecules seen in the Homunculus suggest that this oxygen-, carbon-poor, nitrogen-, helium-rich gas contains very different dust grains likely devoid of metal oxides. The gas to dust ratio is likely much larger than the canonical 100:1 implying that the 12 M estimate of the ejecta is a lower limit.

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