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Dust formation in M-stars

Published online by Cambridge University Press:  04 August 2017

H.-P. Gail
H.-P. Gail*
Affiliation:
Institut für Theoretische Astrophysik Universität Heidelberg Im Neuenheimer Feld 561 D-6900 Heidelberg

Abstract

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A mechanism is proposed for the initiation of dust formation in stellar winds of M-type giants and supergiants. If Mg and Fe are ionized (M0…M4) dust formation is initiated by homogeneous nucleation of SiO, otherwise (later ≍ M2) by homogeneous nucleation of MgS. The condensation temperatures for these mechanisms agree well with observations.

Type
Circumstellar Dust and Chemistry
Information
Symposium - International Astronomical Union , Volume 122: Circumstellar Matter , 1987 , pp. 533 - 534
Copyright
Copyright © Reidel 1987 

References

Clegg, , van Ijsendorn, , Allamandola, : 1983, Month. Not. 203, 125.Google Scholar
Gail, , Sedlmayr, : 1986, Astronomy Astr., in press.Google Scholar
Rowan-Robinson, , Harris, : 1982, Month. Not. 200, 197, 1983, Month. Not. 202, 767.Google Scholar