Interstellar silicon sulfide

Details Interstellar silicon sulfide Interstellar silicon sulfide

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...247..112d&link_type=abstract

Astrophysical Journal, Part 1, vol. 247, July 1, 1981, p. 112-115.

Astronomy and Astrophysics

Astronomy

15

Abundance, Interstellar Chemistry, Interstellar Matter, Molecular Clouds, Silicon Compounds, Sulfides, Late Stars, Line Spectra, Radio Sources (Astronomy), Silicon Oxides

Scientific paper

Silicon sulfide has been observed in Sgr B2 at 108.92 GHz and 90.77 GHz and in Orion A at 108.92 GHz. The column density is 1-2 x 10 to the 13th/sq cm in both sources. SiS was not seen in two other molecular clouds where SiO has been detected; nor was it seen in a variety of late-type stars with varying C/O ratios. It appears that SiS is significantly less abundant than SiO in the interstellar medium and probably at least somewhat less abundant in oxygen-rich late-type variable stars.

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