Carbyne and cyanoacetylenes in stellar atmospheres

Details Carbyne and cyanoacetylenes in stellar atmospheres Carbyne and cyanoacetylenes in stellar atmospheres

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.191..451c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 191, May 1980, p. 451-455. Research supported by the Robert A. Welch Fo

Astronomy and Astrophysics

Astronomy

5

Acetylene, Carbon Stars, Cyano Compounds, Graphite, Stellar Atmospheres, Atmospheric Models, Chemical Equilibrium, Granular Materials

Scientific paper

The formation of carbyne, a high-temperature allotrope of graphite, in carbon stars is investigated. It is shown that the condensation temperature of carbon is too low for carbyne to form in these stars. The equilibrium formation of the cyanoacetylenes HC(2n+1)N in carbon-rich shells is investigated. The existence of these molecules around carbon stars and W Hydrae is discussed. Attention is given to laboratory work linking carbon grain formation with polyacetylene molecules.

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