Evolution of a disc-planet system with a binary companion on an inclined orbit

Abstract

We study orbital inclination changes associated with the precession of a disc-planet system that occurs through gravitational interaction with a binary companion on an inclined orbit. We investigate whether this scenario can account for giant planets on close orbits highly inclined to the stellar equatorial plane. We obtain conditions for maintaining approximate coplanarity and test them with SPH-simulations. For parameters of interest, the system undergoes approximate rigid body precession with modest warping while the planets migrate inwards. Because of pressure forces, disc self-gravity is not needed to maintain the configuration. We consider a disc and single planet for different initial inclinations of the binary orbit to the midplane of the combined system and a system of three planets for which migration leads to dynamical instability that reorders the planets. As the interaction is dominated by the time averaged quadrupole component of the binary's perturbing potential, results for a circular orbit can be scaled to apply to eccentric orbits. The system responded adiabatically when changes to binary orbital parameters occurred on time scales exceeding the orbital period. Accordingly inclination changes are maintained under its slow removal. Thus the scenario for generating high inclination planetary orbits studied here, is promising.

16 pages, 13 figures, accepted for publication by MNRAS

References in corpus (7)

• Formation of Hot Planets by a combination of planet scattering, tidal circularization, and Kozai mechanism
• A comparative study of disc-planet interaction
• Hot Jupiters in binary star systems
• On the evolution of eccentric and inclined protoplanets embedded in protoplanetary disks
• Influence of an inner disc on the orbital evolution of massive planets migrating in resonance
• Interaction between massive planets on inclined orbits and circumstellar discs
• Numerical simulations of the type III migration:I. Disc model and convergence tests

Cited by in corpus (16)

• Tidal Dissipation and Obliquity Evolution in Hot Jupiter Systems
• Magnetic Origins of the Stellar Mass-Obliquity Correlation in Planetary Systems
• Generation of highly inclined protoplanetary discs through single stellar flybys
• Solar Obliquity Induced by Planet Nine
• Dynamics of Planetary Systems Within Star Clusters: Aspects of the Solar System's Early Evolution
• The Kozai-Lidov Mechanism in Hydrodynamical Disks. III. Effects of Disk Mass and Self-Gravity
• The Evolution of Planet-Disk Systems That Are Mildly Inclined to the Orbit of a Binary Companion
• The gravitational interaction between planets on inclined orbits and protoplanetary disks as the origin of primordial spin--orbit misalignments
• Decoupling of a giant planet from its disk in an inclined binary system
• Schrödinger Evolution of Self-Gravitating Disks
• Spirals, shadows & precession in HD 100453 -- II. The hidden companion
• Orbital alignment of circumbinary planets that form in misaligned circumbinary discs: the case of Kepler-413b
• Resonance capture and long-term evolution of planets in binary star systems
• Generation of inclined protoplanetary discs and misaligned planets through mass accretion I: Coplanar secondary discs
• Planetary migration in precessing disks for S-type wide binaries
• Evolution of a migrating giant planet in the presence of an inclined binary companion