A Lopsided Outer Solar System
arXiv:2106.09739 · doi:10.3847/1538-3881/ac2def
Abstract
Axisymmetric disks of eccentric orbits in near-Keplerian potentials are unstable to an out-of-plane buckling. Recently, Zderic et al. (2020) showed that an idealized disk saturates to a lopsided mode. Here we show that this apsidal clustering also occurs in a primordial scattered disk in the outer solar system which includes the orbit-averaged gravitational influence of the giant planets. We explain the dynamics using Lynden-Bell (1979)'s mechanism for bar formation in galaxies. We also show surface density and line of sight velocity plots at different times during the instability, highlighting the formation of concentric circles and spiral arms in velocity space.
arXiv comment17 pages, 13 figures
References in corpus (28)
- REBOUND: An open-source multi-purpose N-body code for collisional dynamics
- IAS15: A fast, adaptive, high-order integrator for gravitational dynamics, accurate to machine precision over a billion orbits
- Evidence for a Distant Giant Planet in the Solar System
- Dynamical Evolution of the Early Solar System
- REBOUNDx: A Library for Adding Conservative and Dissipative Forces to Otherwise Symplectic N-body Integrations
- Discovery of a candidate inner Oort cloud planetoid
- The Planet Nine Hypothesis
- Dynamical Chaos in the Wisdom-Holman Integrator: Origins and Solutions
- Resonant relaxation near a massive black hole: the dependence on eccentricity
- Discovery of A New Retrograde Trans-Neptunian Object: Hint of A Common Orbital Plane for Low Semi-Major Axis, High Inclination TNOs and Centaurs
- A new inclination instability reshapes Keplerian disks into cones: application to the outer Solar System
- Dynamical Properties of Eccentric Nuclear Disks: Stability, Longevity, and Implications for Tidal Disruption Rates in Post-Merger Galaxies
- Discovery and Dynamical Analysis of an Extreme Trans-Neptunian Object with a High Orbital Inclination
- ALMA Detection of Extended Millimeter Halos in the HD 32297 and HD 61005 Debris Disks
- Observational bias and the clustering of distant eccentric Kuiper belt objects
- Outline of the Unified Theory of Spiral and Bar-like Structures in Galaxies
- Consequences of a Distant Massive Planet on the Large Semi-major Axis Trans-Neptunian Objects
- Orbital clustering in the distant solar system
- Observational Signatures of a Massive Distant Planet on the Scattering Disk
- OSSOS XV: Probing the Distant Solar System with Observed Scattering TNOs
- Using gas clouds to probe the accretion flow around SgrA*: G2's delayed pericenter passage
- On the Dynamics of the Inclination Instability
- Secular Dynamics around a Supermassive Black Hole via Multipole Expansion
- Outer Solar System Perihelion Gap Formation Through Interactions with a Hypothetical Distant Giant Planet
- Giant Planet Influence on the Collective Gravity of a Primordial Scattered Disk
- Apsidal Clustering following the Inclination Instability
- The Lynden-Bell bar formation mechanism in simple and realistic galactic models
- Interactions Among Non-Interacting Particles in Planet Formation Simulations