Terrestrial planet and asteroid belt formation by Jupiter-Saturn chaotic excitation

Abstract

The terrestrial planets formed by accretion of asteroid-like objects within the inner solar system's protoplanetary disk. Previous works have found that forming a small-mass Mars requires the disk to contain little mass beyond ~1.5 au (i.e., the disk mass was concentrated within this boundary). The asteroid belt also holds crucial information about the origin of such a narrow disk. Several scenarios may produce a narrow disk. However, simultaneously replicating the four terrestrial planets and the inner solar system properties remains elusive. Here, we found that chaotic excitation of disk objects generated by a near-resonant configuration of Jupiter-Saturn can create a narrow disk, allowing the formation of the terrestrial planets and the asteroid belt. Our simulations showed that this mechanism could typically deplete a massive disk beyond ~1.5 au on a 5-10 Myr timescale. The resulting terrestrial systems reproduced the current orbits and masses of Venus, Earth and Mars. Adding an inner region disk component within ~0.8-0.9 au allowed several terrestrial systems to simultaneously form analogues of the four terrestrial planets. Our terrestrial systems also frequently satisfied additional constraints: Moon-forming giant impacts occurring after a median ~30-55 Myr, late impactors represented by disk objects formed within 2 au, and effective water delivery during the first 10-20 Myr of Earth's formation. Finally, our model asteroid belt explained the asteroid belt's orbital structure, small mass and taxonomy (S-, C- and D/P-types).

arXiv commentAccepted for publication in Scientific Reports. 71 pages, 12 figures, and 5 tables

References in corpus (63)

• A low mass for Mars from Jupiter's early gas-driven migration
• Solar System evolution from compositional mapping of the asteroid belt
• Building Terrestrial Planets
• Solar System Objects Observed in the SDSS Commissioning Data
• Building the Terrestrial Planets: Constrained Accretion in the Inner Solar System
• The taxonomic distribution of asteroids from multi-filter all-sky photometric surveys
• Statistical Study of the Early Solar System's Instability with 4, 5 and 6 Giant Planets
• The Evolution of the Water Distribution in a Viscous Protoplanetary Disk
• Dynamics of the giant planets of the solar system in the gaseous proto-planetary disk and relationship to the current orbital architecture
• Formation of the Terrestrial Planets from a Narrow Annulus
• Dynamical Evolution of the Early Solar System
• Origin of water in the inner Solar System: Planetesimals scattered inward during Jupiter and Saturn's rapid gas accretion
• The timeline of the Lunar bombardment - revisited
• On the Location of the Snow Line in a Protoplanetary Disk
• Close-in planetesimal formation by pile-up of drifting pebbles
• Bifurcation of planetary building blocks during Solar System formation
• Growing the terrestrial planets from the gradual accumulation of sub-meter sized objects
• Mars' Growth Stunted by an Early Giant Planet Instability
• Planetesimal formation by the streaming instability in a photoevaporating disk
• Formation of Terrestrial Planets from Protoplanets under a Realistic Accretion Condition
• Planetesimal rings as the cause of the Solar System's planetary architecture
• Terrestrial Planet Formation in Disks with Varying Surface Density Profiles
• On the Migration of Jupiter and Saturn: Constraints from Linear Models of Secular Resonant Coupling with the Terrestrial Planets
• Analytical Treatment of Planetary Resonances
• The early instability scenario: terrestrial planet formation during the giant planet instability, and the effect of collisional fragmentation
• Dynamical evidence for an early giant planet instability
• Terrestrial Planet Formation Constrained by Mars and the Structure of the Asteroid Belt
• The Fragility of the Terrestrial Planets During a Giant Planet Instability
• Accretion of Uranus and Neptune from inward-migrating planetary embryos blocked by Jupiter and Saturn
• Outward migration of Jupiter and Saturn in 3:2 or 2:1 resonance in radiative disks: implications for the Grand Tack and Nice models
• Early Solar System instability triggered by dispersal of the gaseous disk
• Formation and accretion history of terrestrial planets from runaway growth through to late time: implications for orbital eccentricity
• The evolution of asteroids in the jumping-Jupiter migration model
• Planetesimals to Terrestrial Planets: collisional evolution amidst a dissipating gas disk
• Two phase, inward-then-outward migration of Jupiter and Saturn in the gaseous Solar Nebula
• The Role of Early Giant Planet Instability in the Terrestrial Planet Formation
• Terrestrial Planet Formation from an Annulus
• Constraining the primordial orbits of the Terrestrial Planets
• The excitation of a primordial cold asteroid belt as an outcome of the planetary instability
• Excitation and depletion of the asteroid belt in the early instability scenario
• Is the Grand Tack model compatible with the orbital distribution of main belt asteroids?
• The Asteroid Belt as a Relic From a Chaotic Early Solar System
• Late Accretion and the Late Veneer
• Formation of Venus, Earth and Mars: Constrained by isotopes
• On the orbital evolution of a giant planet pair embedded in a gaseous disk. II. A Saturn-Jupiter configuration
• Born eccentric: constraints on Jupiter and Saturn's pre-instability orbits
• Evolution of the Water Snow Line in Magnetically Accreting Protoplanetary Disks
• Terrestrial planet formation by torque-driven convergent migration of planetary embryos
• Formation of the terrestrial planets in the solar system around 1 au via radial concentration of planetesimals
• The effect of a strong pressure bump in the Sun's natal disk: Terrestrial planet formation via planetesimal accretion rather than pebble accretion
• Instabilities in the Early Solar System due to a Self-gravitating Disk
• Dynamical Constraints on Mercury's Collisional Origin
• Constraining the Formation of the Four Terrestrial Planets in the Solar System
• The terrestrial planet formation paradox inferred from high-resolution N-body simulations
• Proximity of exoplanets to first-order mean-motion resonances
• Born extra-eccentric: A broad spectrum of primordial configurations of the gas giants that match their present-day orbits
• The early instability scenario: Mars' mass explained by Jupiter's orbit
• Dynamical avenues for Mercury's origin II: in-situ formation in the inner terrestrial disk
• Can a jumping-Jupiter trigger the Moon's formation impact?
• Rethinking the role of the giant planet instability in terrestrial planet formation models
• Departure from the Exact Location of Mean Motion Resonances Induced by the Gas Disk in the Systems Observed by Kepler
• Onset of oligarchic growth and implication for accretion histories of dwarf planets
• Can narrow disks in the inner solar system explain the four terrestrial planets?

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• A race against the clock: Constraining the timing of cometary bombardment relative to Earth's growth
• Crash Chronicles: relative contribution from comets and carbonaceous asteroids to Earth's volatile budget in the context of an Early Instability
• An estimate of resident time of the Oort Cloud new comets in planetary region
• Formation of the four terrestrial planets in the Jupiter-Saturn chaotic excitation scenario: fundamental properties and water delivery
• Magnitude of stable iron isotope fractionation limited by multiple stages of terrestrial core formation