2010/04/06 by Jade C. Bond, David P. O'Brien, Dante S. Lauretta · 2 citations
Physics and Astronomy · #Astro and Planetary Science #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph.EP
paper · pdf · doi:10.1088/0004-637x/715/2/1050
127 pages, 12 tables (11 in paper, 1 online only), 19 figures (16 in paper, 3 online only). Accepted to ApJ.
arxiv created 2010/04/06 · openalex publication_date 2010/05/06 · arxiv updated 2012/01/11 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Extrasolar planet host stars have been found to be enriched in key planet-building elements. These enrichments have the potential to drastically alter the composition of material available for terrestrial planet formation. Here, we report on the combination of dynamical models of late-stage terrestrial planet formation within known extrasolar planetary systems with chemical equilibrium models of the composition of solid material within the disk. This allows us to determine the bulk elemental composition of simulated extrasolar terrestrial planets. A wide variety of resulting planetary compositions are found, ranging from those that are essentially "Earth like," containing metallic Fe and Mg silicates, to those that are dominated by graphite and SiC. This shows that a diverse range of terrestrial planets may exist within extrasolar planetary systems.