Outward Migration of Super-Jupiters
arXiv:2105.05277 · doi:10.3847/2041-8213/ac22af
Abstract
Recent simulations show that giant planets of about one Jupiter mass migrate inward at a rate that differs from the Type II prediction. Here we show that at higher masses, planets migrate outward. Our result differs from previous ones because of our longer simulation times, lower viscosity, and our boundary conditions that allow the disk to reach viscous steady state. We show that, for planets on circular orbits, the transition from inward to outward migration coincides with the known transition from circular to eccentric disks that occurs for planets more massive than a few Jupiters. In an eccentric disk, the torque on the outer disk weakens due to two effects: the planet launches weaker waves, and those waves travel further before damping. As a result, the torque on the inner disk dominates, and the planet pushes itself outward. Our results suggest that the many super-Jupiters observed by direct-imaging at large distances from the star may have gotten there by outward migration.
arXiv comment11 pages, 5 figures. ApJL accepted
References in corpus (44)
- Planet-disk interaction and orbital evolution
- On the width and shape of gaps in protoplanetary disks
- The Gemini Planet Imager Exoplanet Survey: Giant Planet and Brown Dwarf Demographics From 10-100 AU
- Disk Accretion Onto High-Mass Planets
- Runaway migration and the formation of hot Jupiters
- Planetary Torques as the Viscosity of Protoplanetary Disks
- The evolution of a supermassive binary caused by an accretion disc
- FARGO3D: A new GPU-oriented MHD code
- Disk eccentricity and embedded planets
- Radial migration of gap-opening planets in protoplanetary disks. I. The case of a single planet
- Hydrodynamics of circumbinary accretion: Angular momentum transfer and binary orbital evolution
- How Empty are Disk Gaps Opened by Giant Planets?
- Satellites in Discs: Regulating the Accretion Luminosity
- Planet migration and gap formation by tidally-induced shocks
- Gap Opening by Extremely Low Mass Planets in a Viscous Disk
- The Migration of Gap-Opening Planets is not Locked to Viscous Disk Evolution
- Migration of massive planets in accreting disks
- Evolution of Giant Planets in Eccentric Disks
- Formation of a disc gap induced by a planet: Effect of the deviation from Keplerian disc rotation
- Mass constraint for a planet in a protoplanetary disk from the gap width
- Hydrodynamic Torques in Circumbinary Accretion Disks
- Circumbinary Accretion from Finite and Infinite Disks
- Orbital Evolution of Equal-mass Eccentric Binaries due to a Gas Disk: Eccentric Inspirals and Circular Outspirals
- Long range outward migration of giant planets, with application to Fomalhaut b
- Growth of eccentric modes in disc-planet interactions
- Toward a new paradigm for Type II migration
- Modeling of deep gaps created by giant planets in protoplanetary discs
- Circumplanetary Disk Dynamics in the Isothermal and Adiabatic Limits
- Planet-disk interaction in disks with cooling: basic theory
- On the Mass Function, Multiplicity, and Origins of Wide-Orbit Giant Planets
- Long-Lived Eccentric Modes in Circumbinary Disks
- Secular evolution of eccentricity in protoplanetary discs with gap-opening planets
- Discovery of a directly imaged planet to the young solar analog YSES 2
- Pileups and Migration Rates for Planets in Low Mass Disks
- Inner Boundary Condition in Quasi-Lagrangian Simulations of Accretion Disks
- Retention of Long-Period Gas Giant Planets: Type II Migration Revisited
- Detectability of giant planets in protoplanetary disks by CO emission lines
- Occurrence Rates from Direct Imaging Surveys
- Deep and wide gaps by super Earths in low-viscosity discs
- Outward migration of a giant planet with a gravitationally unstable gap edge
- Type II migration strikes back -- An old paradigm for planet migration in discs
- Long-Lived Eccentricities in Accretion Disks
- Orbital migration of giant planets induced by gravitationally unstable gaps: the effect of planet mass
- Comments on "Type II migration strikes back -- An old paradigm for planet migration in discs" by Scardoni et al
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- Contracting and Expanding Binary Black Holes in 3D Low-Mass AGN Disks: The Importance of Separation
- Limits on the Mass and Initial Entropy of 51 Eri b from Gaia EDR3 Astrometry
- Eccentric gap induced by a super-Jupiter mass planet
- Inward and outward migration of massive planets: moving towards a stalling radius
- Turbulent Disk Viscosity and the Bifurcation of Planet Formation Histories