Hydrogen sulfide in a circumstellar envelope

Details Hydrogen sulfide in a circumstellar envelope Hydrogen sulfide in a circumstellar envelope

May 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...121...15u&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 121, no. 1, May 1983, p. 15-18. NASA-supported research.

Astronomy and Astrophysics

Astrophysics

23

Hydrogen Sulfide, Interstellar Matter, Molecular Clouds, Stellar Envelopes, Flow Velocity, Hydroxyl Radicals, Line Spectra, Nebulae, Radial Velocity, Stellar Mass Ejection, Stellar Temperature

Scientific paper

A search for hydrogen sulfide in the cool circumstellar envelopes of 25 stars was made using the l10-l01 rotational line at 1.8 mm. It was detected in the bipolar nebula/OH maser OH231.8+4.2, an object having a high rate of mass loss. An approximate analysis indicates that 1/60 of the sulfur in this outflowing envelope is in the form of H2S, a fraction which may be similar to that in the atmosphere of the central star. In addition, the shape of the observed line profile is discussed in terms of a possible variation of the outflow velocity with latitude above the system's equatorial plane.

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