Towards a time-dependent chemistry of the inner envelope of carbon-rich AGB stars

Details Towards a time-dependent chemistry of the inner envelope of carbon-rich AGB stars Towards a time-dependent chemistry of the inner envelope of carbon-rich AGB stars

Jan 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.577..457p&link_type=abstract

In: Proceedings of the dusty and molecular universe: a prelude to Herschel and ALMA, 27-29 October 2004, Paris, France. Ed. by A

Computer Science

1

Agb Stars, Circumstellar Envelopes

Scientific paper

We present a new approach to modelling of chemical evolution of the inner circumstellar envelope of carbon-rich AGB stars. We consider the effect of pulsation-driven shocks on the molecular content of the gas starting from the stellar photosphere, where the chemical composition is assumed to be at local thermal equilibrium. The chemical kinetic scheme is based on the silicon and sulphur chemistry network of Willacy and Cherchneff (1998).

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