%0 Generic %1 izidoro2014terrestrial %A Izidoro, André %A Morbidelli, Alessandro %A Raymond, Sean N. %D 2014 %K 2014 Morbidelli Raymond %T Terrestrial Planet Formation in the Presence of Migrating Super-earths %U http://arxiv.org/abs/1408.1215 %X Super-Earths with orbital periods less than 100 days are extremely abundant around Sun-like stars. It is unlikely that these planets formed at their current locations. Rather, they likely formed at large distances from the star and subsequently migrated inward. Here we use N-body simulations to study the effect of super-Earths on the accretion of rocky planets. In our simulations, one or more super-Earths migrates inward through a disk of planetary embryos and planetesimals embedded in a gaseous disk. We tested a wide range of migration speeds and configurations. Fast-migrating super-Earths ($\tau_mig \sim$0.01-0.1 Myr) only have a modest effect on the protoplanetary embryos and planetesimals. Sufficient material survives to form rocky, Earth-like planets on orbits exterior to the super-Earths'. In contrast, slowly-migrating super-Earths shepherd rocky material interior to their orbits and strongly deplete the terrestrial planet-forming zone. In this situation any Earth-sized planets in the habitable zone are extremely volatile-rich and are therefore probably not Earth-like.

@misc{izidoro2014terrestrial, abstract = {Super-Earths with orbital periods less than 100 days are extremely abundant around Sun-like stars. It is unlikely that these planets formed at their current locations. Rather, they likely formed at large distances from the star and subsequently migrated inward. Here we use N-body simulations to study the effect of super-Earths on the accretion of rocky planets. In our simulations, one or more super-Earths migrates inward through a disk of planetary embryos and planetesimals embedded in a gaseous disk. We tested a wide range of migration speeds and configurations. Fast-migrating super-Earths ($\tau_{mig} \sim$0.01-0.1 Myr) only have a modest effect on the protoplanetary embryos and planetesimals. Sufficient material survives to form rocky, Earth-like planets on orbits exterior to the super-Earths'. In contrast, slowly-migrating super-Earths shepherd rocky material interior to their orbits and strongly deplete the terrestrial planet-forming zone. In this situation any Earth-sized planets in the habitable zone are extremely volatile-rich and are therefore probably not Earth-like.}, added-at = {2014-08-07T08:44:45.000+0200}, author = {Izidoro, André and Morbidelli, Alessandro and Raymond, Sean N.}, biburl = {https://www.bibsonomy.org/bibtex/285b1bc81810906046920ec8df4e20d6d/danielcarrera}, description = {Terrestrial Planet Formation in the Presence of Migrating Super-earths}, interhash = {6ffcd0c9b5eb31d47ba3d8d8be67fe81}, intrahash = {85b1bc81810906046920ec8df4e20d6d}, keywords = {2014 Morbidelli Raymond}, note = {cite arxiv:1408.1215Comment: Accepted for publication in The Astrophysical Journal}, timestamp = {2014-08-26T22:30:04.000+0200}, title = {Terrestrial Planet Formation in the Presence of Migrating Super-earths}, url = {http://arxiv.org/abs/1408.1215}, year = 2014 }