The formation and habitability of terrestrial planets in the presence of hot jupiters

Abstract

`Hot jupiters,' giant planets with orbits very close to their parent stars, are thought to form farther away and migrate inward via interactions with a massive gas disk. If a giant planet forms and migrates quickly, the planetesimal population has time to re-generate in the lifetime of the disk and terrestrial planets may form (Armitage 2003). We present results of simulations of terrestrial planet formation in the presence of hot jupiters, broadly defined as having orbital radii <= 0.5 AU. We show that terrestrial planets similar to those in the Solar System can form around stars with hot jupiters, and can have water contents equal to or higher than the Earth's. For small orbital radii of hot jupiters (e.g. 0.15, 0.25 AU) potentially habitable planets can form, but for semi-major axes of 0.5 AU or greater their formation is suppressed. We show that the presence of an outer giant planet such as Jupiter does not enhance the water content of the terrestrial planets, but rather decreases their formation and water delivery timescales. We speculate that asteroid belts may exist interior to the terrestrial planets in systems with hot jupiters.

5 pages, 2 color figures in emulate ApJ style submitted to Icarus

References in corpus (21)

• Making other Earths: Dynamical Simulations of Terrestrial Planet Formation and Water Delivery
• The Galactic Habitable Zone and the Age Distribution of Complex Life in the Milky Way
• Detection of a NEPTUNE-mass planet in the ${\rho }^1$ Cancri system using the Hobby-Eberly Telescope
• Formation of giant planets by fragmentation of protoplanetary disks
• Orbital Migration and Mass Accretion of Protoplanets in 3D Global Computations with Nested Grids
• The Galactic Habitable Zone I. Galactic Chemical Evolution
• Migration and giant planet formation
• An Estimate of the Age Distribution of Terrestrial Planets in the Universe: Quantifying Metallicity as a Selection Effect
• A Planet at 5 AU Around 55 Cancri
• On the Planet and the Disk of CoKuTau/4
• Parent Stars of Extrasolar Planets VII: New Abundance Analyses of 30 Systems
• Stopping inward planetary migration by a toroidal magnetic field
• Mid-Infrared Spectroscopy of Disks around Classical T Tauri Stars
• Substellar companions and isolated planetary mass objects from protostellar disc fragmentation
• On the formation time scale and core masses of gas giant planets
• A reduced efficiency of terrestrial planet formation following giant planet migration
• Predicting Planets in Known Extra-Solar Planetary Systems III: Forming Terrestrial Planets
• Survival of Terrestrial Planets in the Presence of Giant Planet Migration
• Halting Planet Migration in the Evacuated Centers of Protoplanetary Disks
• Halting planet migration by photoevaporation from the central source
• Simulations of Gaseous Disc-Embedded Planet Interaction

Cited by in corpus (34)

• Internal Structure of Massive Terrestrial Planets
• High-resolution simulations of the final assembly of Earth-like planets 1: terrestrial accretion and dynamics
• The Compositional Diversity of Extrasolar Terrestrial Planets: I. In-Situ Simulations
• Exotic Earths: Forming Habitable Worlds with Giant Planet Migration
• A decreased probability of habitable planet formation around low-mass stars
• High-resolution simulations of the final assembly of Earth-like planets 2: water delivery and planetary habitability
• Formation of Earth-like Planets During and After Giant Planet Migration
• Collisional Stripping and Disruption of Super-Earths
• Terrestrial Planet Formation in Disks with Varying Surface Density Profiles
• The Frequency of Giant impacts on Earth-like Worlds
• Terrestrial Planet Formation Surrounding Close Binary Stars
• Origin and Ubiquity of Short-Period Earth-like Planets: Evidence for the Sequential-Accretion Theory of Planet Formation
• On the formation of terrestrial planets in hot-Jupiter systems
• A Compound model for the origin of Earth's water
• Predicting Planets in Known Extra-Solar Planetary Systems III: Forming Terrestrial Planets
• The Search for other Earths: limits on the giant planet orbits that allow habitable terrestrial planets to form
• Habitable Planet Formation in Binary-Planetary Systems
• Evaluating Galactic Habitability Using High Resolution Cosmological Simulations of Galaxy Formation
• 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
• Application of the Titius-Bode Rule to the 55 Cancri System: Tentative Prediction of a Possibly Habitable Planet
• Lightning climatology of exoplanets and brown dwarfs guided by Solar System data
• The Effect of Planets Beyond the Ice Line on the Accretion of Volatiles by Habitable-Zone Rocky Planets
• The Formation and Dynamics of Super-Earth Planets
• Formation of Terrestrial Planets in Disks with Different Surface Density Profiles
• Dynamics and habitability in circumstellar planetary systems of known binary stars
• Stochasticity & Predictability in Terrestrial Planet Formation
• Planetary Dynamics and Habitable Planet Formation In Binary Star Systems
• Jupiter and Super-Earth embedded in a gaseous disc
• Orbital Dynamics and the Evolution of Planetary Habitability in the AU Mic System
• Building Terrestrial Planets: Why results of perfect-merging simulations are not quantitatively reliable approximations to accurate modeling of terrestrial planet formation
• Terrestrial Planet Formation in Extra-Solar Planetary Systems
• Do we expect to find the Super-Earths close to the gas giants?
• The Diversity of Extrasolar Terrestrial Planets