SEST CO (J = 1 - 0) observations of carbon-rich circumstellar envelopes

Details SEST CO (J = 1 - 0) observations of carbon-rich circumstellar envelopes SEST CO (J = 1 - 0) observations of carbon-rich circumstellar envelopes

May 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...196l...1o&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 196, no. 1-2, May 1988, p. L1-L4.

Astronomy and Astrophysics

Astrophysics

66

Carbon Monoxide, Carbon Stars, Emission Spectra, Infrared Telescopes, Stellar Envelopes, Far Infrared Radiation, Line Shape, Stellar Spectra

Scientific paper

The authors have used the Swedish ESO Submillimetre Telescope (SEST) to search for circumstellar CO (J = 1-0) emission towards bright carbon stars in the southern hemisphere. A correlation between the estimated mass loss rate and a far-IR excess measure is discussed. The CO (1-0) line profiles indicate a diversity in the characteristics of the circumstellar envelopes. In particular, two stars with distinctly double-peaked line shapes have been detected. One of them, S Sct, is interpreted in terms of an extended, cold, detached shell, with no hot gas/dust close to the star.

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