SO2 and SO in circumstellar envelopes

Details SO2 and SO in circumstellar envelopes SO2 and SO in circumstellar envelopes

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...165l...1g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 165, no. 1-2, Sept. 1986, p. L1-L4.

Astronomy and Astrophysics

Astronomy

27

Stellar Composition, Stellar Envelopes, Sulfur Dioxides, Sulfur Oxides, Astronomical Spectroscopy, Radio Astronomy, Stellar Spectra, Stellar Structure

Scientific paper

After its first detection in circumstellar envelopes (Lucas et al. 1986) SO2 has been systematically searched for with the IRAM 30-m telescope. It has been found in 3 new stars, with very strong lines in OH 231.8+4.2 (TA* ≈ 0.7 - 1.4K, Trot ≈ 25K, Δv ≈ 80 km s-1, TA*(SO2) > TA*(CO) ) and relatively strong ones in OH 26.5+0.6. SO has been detected for the first time in a circumstellar shell, in OH 231.8+4.2. H13CN has been observed in the same star, suggesting a very large abundance of 13C.

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