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- Title
PLANETARY MIGRATION IN RESONANCE : THE QUESTION OF THE ECCENTRICITIES.
- Authors
Crida, A.; Sándor, Z.; Kley, W.
- Abstract
The formation of resonant planets pairs in exoplanetary systems involves planetary migration inside the protoplanetary disc: an inwards migrating outer planet captures in Mean Motion Resonance an inner planet. During the migration of the resonant pair of planets, the eccentricities are expected to rise excessively, if no damping mechanism is applied on the inner planet. We express the required damping action to match the observations, and we show that the inner disk can play this role. This result applies for instance to the system GJ 876: we reproduce the observed orbital elements through a fully hydrodynamical simulation of the evolution of the resonant planets.
- Subjects
ORIGIN of planets; EXTRASOLAR planetary orbits; PROTOPLANETARY disks; ACCRETION (Astrophysics); INNER planets
- Publication
EAS Publications Series, 2010, Vol 41, p387
- ISSN
1633-4760
- Publication type
Article
- DOI
10.1051/eas/1041029