2011/02/08 by A. Beate C. Patzer, A. B. C. Patzer, Matthias Wendt +6
Physics and Astronomy · #Astro and Planetary Science #Astrophysics and Star Formation Studies #FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR) #Stellar, planetary, and galactic studies #astro-ph.SR
paper · pdf · doi:10.48550/arxiv.1102.1663
arxiv created 2011/02/08 · openalex publication_date 2011/02/08 · arxiv updated 2011/02/09 · openalex created_date 2022/08/29 · openalex updated_date 2026/07/28
Many studies of especially dust nucleation in winds of carbon-rich AGB stars consider primarily carbon as dust forming material. But dust grains formed in such circumstellar envelopes are rather a mixture of several chemical elements such as titanium or silicon in addition to the main component carbon as verified by many investigations of pre-solar grains enclosed in meteorites, for example. In this contribution we focus on the study of the nucleation of titanium carbide particles from the gas phase. Therefore, the necessary properties of molecular titanium carbide clusters have been estimated within density functional approaches and first implications on the homogeneous nucleation of TiC are studied for conditions being representative for circumstellar dust shells around carbon-rich AGB stars.