CARTER-BOND, Jade C.; O'BRIEN, David P.; RAYMOND, Sean N.

doi:10.1017/S174392131301288X

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CARTER-BOND, Jade C.

O'BRIEN, David P.

RAYMOND, Sean N.
SSE 2014

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Communication dans un congrès

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Proceedings of the International Astronomical Union, Formation, Detection, and Characterization of Extrasolar Habitable Planets, Proceedings of the International Astronomical Union, IAU Symposium, held in China, August 27, 2012, - Volume 293, pp. 229-234- 2014, Formation, Detection, and Characterization of Extrasolar Habitable Planets, Proceedings of the International Astronomical Union, IAU Symposium, held in China, August 27, 2012, - Volume 293, pp. 229-234- 2014, 2012, beijing. 2014-04, vol. 293, p. 229-234

Cambridge University Press (CUP)

Resumen en inglés

A diverse range of terrestrial planet compositions is believed to exist within known extrasolar planetary systems, ranging from those that are relatively Earth-like to those that are highly unusual, dominated by species such as refractory elements (Al and Ca) or C (as pure C, TiC and SiC)(Bond et al. 2010b). However, all prior simulations have ignored the impact that giant planet migration during planetary accretion may have on the final terrestrial planetary composition. Here, we combined chemical equilibrium models of the disk around five known planetary host stars (Solar, HD4203, HD19994, HD213240 and Gl777) with dynamical models of terrestrial planet formation incorporating various degrees of giant planet migration. Giant planet migration is found to drastically impact terrestrial planet composition by 1) increasing the amount of Mg-silicate species present in the final body; and 2) dramatically increasing the efficiency and amount of water delivered to the terrestrial bodies during their formation process.< Leer menos

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planetary systems

planets and satellites: formation

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Migration & Extra-solar Terrestrial Planets: Watering the Planets

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