Dynamical evolution of a self-gravitating planetesimal disk in the distant trans-Neptunian region
arXiv:2205.12297 · doi:10.1051/0004-6361/202243324
Abstract
Aims. We study the dynamical evolution of a system consisting of the giant planets and a massive planetesimal disk over the age of the Solar System. The main question addressed in this study is whether distant trans-Neptunian objects could have come about as a result of the combined action of planetary perturbations and the self-gravity of the disk. Methods. We carried out a series of full N-body numerical simulations of gravitational interactions between the giant planets and a massive outer disk of planetesimals. Results. Our simulations show that the collective gravity of the giant planets and massive planetesimals produces distant trans-Neptunian objects across a wide range of the initial disk mass. The majority of objects that survive up through the age of the Solar System have perihelion distances of q > 40 au. In this region, there is a tendency toward a slow decrease in eccentricities and an increase in perihelion distances for objects with semimajor axes a > 150 au. Secular resonances between distant planetesimals play a major role in increasing their perihelion distances. This explains the origin of Sedna-type objects. In our integrations for the age of the Solar System, we registered times with both high and low clustering of longitudes of perihelion and arguments of perihelion for objects with q > 40 au, a > 150 au. The resulting distribution of inclinations in our model and the observed distribution of inclinations for distant trans-Neptunian objects have similar average values of around 20 degrees. Conclusions. Distant trans-Neptunian objects are a natural consequence in the models that include migrating giant planets and a self-gravitating planetesimal disk.
References in corpus (34)
- Evidence for a Distant Giant Planet in the Solar System
- Statistical Study of the Early Solar System's Instability with 4, 5 and 6 Giant Planets
- Dynamics of the giant planets of the solar system in the gaseous proto-planetary disk and relationship to the current orbital architecture
- Retention of a Primordial Cold Classical Kuiper Belt in an Instability-Driven Model of Solar System Formation
- Neptune's Orbital Migration Was Grainy, Not Smooth
- Early Dynamical Evolution of the Solar System: Pinning Down the Initial Condition of the Nice Model
- Dynamical evidence for an early giant planet instability
- OSSOS VI. Striking Biases in the detection of large semimajor axis Trans-Neptunian Objects
- Tracking Neptune's Migration History through High-Perihelion Resonant Trans-Neptunian Objects
- A New High Perihelion Inner Oort Cloud Object: 2015 TG387
- A new inclination instability reshapes Keplerian disks into cones: application to the outer Solar System
- The orbital distribution of trans-Neptunian objects beyond 50 au
- Observational bias and the clustering of distant eccentric Kuiper belt objects
- Testing the isotropy of the Dark Energy Survey's extreme trans-Neptunian objects
- Long-term orbital dynamics of trans-Neptunian objects
- Orbital clustering in the distant solar system
- Observational Signatures of a Massive Distant Planet on the Scattering Disk
- Instabilities in the Early Solar System due to a Self-gravitating Disk
- Shepherding in a Self-Gravitating Disk of Trans-Neptunian Objects
- Study and application of the resonant secular dynamics beyond Neptune
- Chaos in the inert Oort cloud
- Born extra-eccentric: A broad spectrum of primordial configurations of the gas giants that match their present-day orbits
- Injection of Inner Oort Cloud Objects Into the Distant Kuiper Belt by Planet Nine
- On the Dynamics of the Inclination Instability
- Orbital precession in the distant solar system; further constraining the Planet Nine hypothesis with numerical simulations
- Simulations of the Solar System's Early Dynamical Evolution with a Self-Gravitating Planetesimal Disk
- Stability of Neptune's distant resonances in the presence of Planet Nine
- Giant Planet Influence on the Collective Gravity of a Primordial Scattered Disk
- Stability of the Outer Planets in Multiresonant Configurations with a Self-gravitating Planetesimal Disk
- Apsidal Clustering following the Inclination Instability
- Collisional Growth Within the Solar System's Primordial Planetesimal Disk and the Timing of the Giant Planet Instability
- A Lopsided Outer Solar System
- Secular Eccentricity Oscillations in Axisymmetric Disks of Eccentric Orbits
- The orbit of Planet Nine