Formation of silicate crystals and/or glasses in the circumstellar environment

Details Formation of silicate crystals and/or glasses in the circumstellar environment Formation of silicate crystals and/or glasses in the circumstellar environment

May 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985baicz..36..172s&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 36, May 1985, p. 172-174.

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Grain Size, Silica Glass, Stellar Envelopes, Stellar Temperature, T Tauri Stars, Variable Stars, Computational Chemistry, Interstellar Chemistry, Mira Variables, Quantitative Analysis

Scientific paper

The formation of alkali-silicate glasses in oxygen-rich stars is studied theoretically. The possibility of Na2SiO2 grains forming in mass-loose oxygen-rich T Tauri and Mira-like variable stars is evaluated within the framework of Turnbull's (1969) theory of glass nucleation in extreme environments. It is shown that the formation of glassy silicate grains of Na2SiO2 is much more likely than the formation of crystalline silicates in oxygen-rich stars.

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