Mathematics – Logic
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009dps....41.0501b&link_type=abstract
American Astronomical Society, DPS meeting #41, #5.01
Mathematics
Logic
Scientific paper
The details of the formation of the terrestrial planets are long-standing questions in the geological, planetary and astronomical sciences, with the discovery of extrasolar planetary systems placing even greater emphasis on these questions. To date, very little has been done on combining detailed chemical abundance and distribution models with specific planetary formation simulations. Here we present simulations of the bulk compositions of the terrestrial planets and planetesimals in known extrasolar planetary systems. Many of these systems are determined to contain multiple terrestrial planets, allowing us to also consider the variation in composition from planet and to gain a better understanding of the distribution of material in such systems.
We find that the terrestrial planets produced vary from resembling the planetary composition of the Solar System to being enriched in Ca and Al, Fe or highly unusal planet building species such as C and other carbide phases. These enrichments can be taken to the extreme to produce planets unlike anything previously observed. This work will provide us with a greater understanding of the formation and evolution of both these systems as a whole and the planetary bodies produced within them.
Bond Jade
Lauretta Dante
O'Brien Darren
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