Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2010-11-03
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
5 pages, 10 figures, contributed talk at conference "Why Galaxies Care About AGB Stars II", August 16-20, 2010, Vienna (Austri
Scientific paper
The dust formed in extended circumstellar envelopes of long-period variables and Miras has a strong influence on the envelope dynamics. A radiatively driven instability caused by the formation of dust leads to the development of an autonomous dynamics characterised by a set of distinct frequencies. We study the interplay between the envelope's internal dynamics and an external excitation by a pulsating star.
Dreyer Claudia
Hegmann Michael
Sedlmayr Erwin
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