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- W2001066902 abstract "view Abstract Citations (150) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS MgS grain component in circumstellar shells. Goebel, J. H. ; Moseley, S. H. Abstract In this letter, far-infrared spectrophotometry (30-55 microns) and photometry (53-200 microns) are presented which define, for the first time, the long wavelength limit of the previously unidentified 30 micron emission feature found in certain extreme carbon star spectra. The spectral similarities are sufficiently similar to those of solid MgS that MgS is proposed to be the band carrier. This is interpreted as the first direct evidence that chemical surface reactions occur on dust grains in circumstellar environments. The presence of MgS indicates that either the oxygen abundance is relatively low and/or the sulfur abundance is high in extreme carbon stars. Publication: The Astrophysical Journal Pub Date: March 1985 DOI: 10.1086/184437 Bibcode: 1985ApJ...290L..35G Keywords: Carbon Stars; Inorganic Sulfides; Interstellar Matter; Magnesium Compounds; Stellar Composition; Stellar Envelopes; Astronomical Photometry; Far Infrared Radiation; Stellar Spectrophotometry; Astrophysics full text sources ADS | data products SIMBAD (21)" @default.
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- W2001066902 title "MgS grain component in circumstellar shells" @default.
- W2001066902 doi "https://doi.org/10.1086/184437" @default.
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