Late-type stars at far-infrared and sub-millimeter wavelengths

Details Late-type stars at far-infrared and sub-millimeter wavelengths Late-type stars at far-infrared and sub-millimeter wavelengths

Dec 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990liaco..29..153d&link_type=abstract

In ESA, From Ground-Based to Space-Borne Sub-mm Astronomy p 153 (SEE N91-21986 13-89)

Astronomy and Astrophysics

Astronomy

3

Asymptotic Giant Branch Stars, Far Infrared Radiation, Stellar Envelopes, Stellar Evolution, Submillimeter Waves, Abundance, Carbon Stars, Infrared Astronomy, Infrared Sources (Astronomy), Stellar Mass Ejection

Scientific paper

The evolution of Asymptotic Giant Branch (AGB) stars is analyzed through analysis of far infrared submillimeter radiation. The AGB phase occurs at the end of the life of an intermediate mass (1 to 8 solar masses) star just before it turns into a planetary nebula. AGB stars generate energy in hydrogen and helium burning shells in the stellar envelope just outside a degenerate carbon-oxygen core of about 0.6 solar masses. Measurements of the spectral lines of various molecules and of the continuing radiation of dust are used to provide more information on the chemical composition, the molecular abundances and the formation of dust particles in circumstellar shells.

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