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Terrestrial Planet Formation Constrained by Mars and the Structure of the Asteroid Belt
André Izidoro, Sean N. Raymond, Alessandro Morbidelli +1
Reproducing the large Earth/Mars mass ratio requires a strong mass depletion in solids within the protoplanetary disk between 1 and 3 AU. The Grand Tack model invokes a specific mi…
Mercury-T: A new code to study tidally evolving multi-planet systems. Applications to Kepler-62
Emeline Bolmont, Sean N. Raymond, Jeremy Leconte +2
A large proportion of observed planetary systems contain several planets in a compact orbital configuration, and often harbor at least one close-in object. These systems are then m…
Accretion of Uranus and Neptune from inward-migrating planetary embryos blocked by Jupiter and Saturn
Andre Izidoro, Alessandro Morbidelli, Sean N. Raymond +2
Reproducing Uranus and Neptune remains a challenge for simulations of solar system formation. The ice giants' peculiar obliquities suggest that they both suffered giant collisions…
Highly Siderophile Elements in the Earth's Mantle as a Clock for the Moon-forming Impact
Seth A. Jacobson, Alessandro Morbidelli, Sean N. Raymond +3
According to the generally accepted scenario, the last giant impact on the Earth formed the Moon and initiated the final phase of core formation by melting the Earth's mantle. A ke…
A primordial origin for the composition similarity between the Earth and the Moon
Alessandra Mastrobuono-Battisti, Hagai B. Perets, Sean N. Raymond
Most of the properties of the Earth-Moon system can be explained by a collision between a planetary embryo and the growing Earth late in the accretion process. Simulations show tha…
Gas giant planets as dynamical barriers to inward-migrating super-Earths
Andre Izidoro, Sean N. Raymond, Alessandro Morbidelli +2
Planets of 1-4 times Earth's size on orbits shorter than 100 days exist around 30-50% of all Sun-like stars. In fact, the Solar System is particularly outstanding in its lack of "h…