The chemistry of dust formation in red supergiants

2013/03/12 by Isabelle Cherchneff · 1 citation
Physics and Astronomy · #astro-ph.SR

paper · pdf · doi:10.1051/eas/1360020

10 pages, 3 figures, Betelgeuse workshop, November 2012, Paris. To be published in the European Astronomical Society Publications Series, editors: Pierre Kervella, Thibaut Le Bertre & Guy Perrin

arxiv created 2013/03/12 · arxiv updated 2015/06/15

Abstract

Massive stars in their late stages of evolution as Red Supergiants experience mass loss. The resulting winds show various degrees of dynamical and chemical complexity and produce molecules and dust grains. This review summarises our knowledge of the molecular and dust components of the wind of Red Supergiants, including VY CMa and Betelgeuse. We discuss the synthesis of dust as a non-equilibrium process in stellar winds, and present the current knowledge of the chemistry involved in the formation of oxygen-rich dust such as silicates and metal oxides.

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