Mass loss characteristics of dust forming long-period variable stars

J.M. Winters, T. Le Bertre

Post-AGB objects (proto-planetary nebulae) as a phase of stellar evolution, eds. R. Szczerba and S.K. Gorny, p.93-100, Kluwer (2001)"

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Abstract:

We present results obtained from a grid of model calculations for dust forming circumstellar shells around carbon-rich long-period variable stars. These models consistently treat the time-dependent hydrodynamics, chemistry, dust formation and the radiative transfer problem. We show that variations of the mass loss rates observed on different time scales are well reproduced by our models.

Keywords:

Hydrodynamics -- Stars: circumstellar matter -- Stars: carbon -- Stars: mass--loss -- Stars: AGB and post-AGB -- Stars: winds, outflows