Winds of Late Type Stars

  • H.-P. Gail
Conference paper
Part of the Reviews in Modern Astronomy book series (MOD.ASTRONOMY, volume 3)

Abstract

Cool stars on the asymptotic giant branch (AGB) form a late stage of stellar evolution shortly before loosing their outer layers and moving into the state where a planetary nebula is excited. These stars show severe mass-loss rates between 10−8 M yr−1 at the lower AGB, increasing to some l0−4 M yr−1 as the star evolves to the top of the AGB while becoming slightly cooler and considerably more luminous. In the outflowing matter dust condenses from the gas phase and forms optically thin dust shells on the lower part of the AGB and massive dust shells at the top of the AGB where the stars are completely obscured by their dust shells.

Keywords

Dust Graphite Convection Carbide Silicate 

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • H.-P. Gail
    • 1
  1. 1.Institut für Theoretische AstrophysikHeidelbergFed. Rep. of Germany

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