A reduced efficiency of terrestrial planet formation following giant planet migration

Abstract

Substantial orbital migration of massive planets may occur in most extrasolar planetary systems. Since migration is likely to occur after a significant fraction of the dust has been locked up into planetesimals, ubiquitous migration could reduce the probability of forming terrestrial planets at radii of the order of 1 au. Using a simple time dependent model for the evolution of gas and solids in the disk, I show that replenishment of solid material in the inner disk, following the inward passage of a giant planet, is generally inefficient. Unless the timescale for diffusion of dust is much shorter than the viscous timescale, or planetesimal formation is surprisingly slow, the surface density of planetesimals at 1 au will typically be depleted by one to two orders of magnitude following giant planet migration. Conceivably, terrestrial planets may exist only in a modest fraction of systems where a single generation of massive planets formed and did not migrate significantly.

ApJL, in press

References in corpus (5)

• Models of the in situ formation of detected extrasolar giant planets
• Dynamical Habitability of Known Extrasolar Planetary Systems
• Viscous diffusion and photoevaporation of stellar disks
• Orbital migration and the frequency of giant planet formation
• Halting Planet Migration in the Evacuated Centers of Protoplanetary Disks

Cited by in corpus (39)

• Toward a Deterministic Model of Planetary Formation V. Accumulation Near the Ice Line
• The Compositional Diversity of Extrasolar Terrestrial Planets: I. In-Situ Simulations
• Exotic Earths: Forming Habitable Worlds with Giant Planet Migration
• Formation of Earth-like Planets During and After Giant Planet Migration
• The Mass Budget of Planet Forming Discs: Isolating the Epoch of Planetesimal Formation
• On the formation of terrestrial planets in hot-Jupiter systems
• Prospects for Extrasolar "Earths" in Habitable Zones
• Habitability of known exoplanetary systems based on measured stellar properties
• Oligarchic and giant impact growth of terrestrial planets in the presence of gas giant planet migration
• Predicting Planets in Known Extra-Solar Planetary Systems III: Forming Terrestrial Planets
• The formation and habitability of terrestrial planets in the presence of hot jupiters
• Effects of Dynamical Evolution of Giant Planets on Survival of Terrestrial Planets
• The Compositional Diversity of Extrasolar Terrestrial Planets: II. Migration Simulations
• Habitable Zones in the Universe
• Survival of Terrestrial Planets in the Presence of Giant Planet Migration
• The effect of type I migration on the formation of terrestrial planets in hot-Jupiter systems
• Predictions for the correlation between giant and terrestrial extrasolar planets in dynamically evolved systems
• The Diversity of Planetary Systems Architectures: Contrasting Theory with Observations
• On the formation and evolution of asteroid belts and their potential significance for life
• Habitability of exoplanetary systems with planets observed in transit
• The Galactic habitable zone around M and FGK stars with chemical evolution models with dust
• Application of the Titius-Bode Rule to the 55 Cancri System: Tentative Prediction of a Possibly Habitable Planet
• Terrestrial planet formation in low eccentricity warm-Jupiter systems
• Rocky Planet Formation: Quick and Neat
• Pumping of a Planetesimal Disc by a Rapidly Migrating Planet
• Properties of the single Jovian planet population and the pursuit of Solar system analogues
• Effects of Dynamical Evolution of Giant Planets on the Delivery of Atmophile Elements During Terrestrial Planet Formation
• Stable habitable zones of single Jovian planet systems
• The Microlensing Planet Finder: Completing the Census of Extrasolar Planets in the Milky Way
• Jupiter and Super-Earth embedded in a gaseous disc
• Migrating Jupiter up to the habitable zone: Earth-like planet formation and water delivery
• K2-30b and K2-34b: two inflated hot-Jupiters around Solar-type stars
• Terrestrial Planet Formation in Extra-Solar Planetary Systems
• Shaping Galactic Habitability: the impact of stellar migration and gas giants
• The GAPS Programme at TNG -- XXIII. HD 164922 d: a close-in super-Earth discovered with HARPS-N in a system with a long-period Saturn mass companion
• Fundamental stellar parameters for selected T-Tauri stars in the Chamaeleon and Rho Ophiuchus star-forming regions
• A Possible Stellar Metallic Enhancement in Post-T Tauri Stars by a Planetesimal Bombardment
• Do we expect to find the Super-Earths close to the gas giants?
• The Diversity of Extrasolar Terrestrial Planets