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Found 13 papers, 10 papers with code
A Bayesian neural network predicts the dissolution of compact planetary systems
Our model, trained directly from short N-body time series of raw orbital elements, is more than two orders of magnitude more accurate at predicting instability times than analytical estimators, while also reducing the bias of existing machine learning algorithms by nearly a factor of three.
A repository of vanilla long term integrations of the Solar System
We share the source code and a 121 GB dataset of 96 long-term N-body simulations of the Solar System.
Earth and Planetary Astrophysics
Predicting the long-term stability of compact multiplanet systems
Our Stability of Planetary Orbital Configurations Klassifier (SPOCK) predicts stability using physically motivated summary statistics measured in integrations of the first $10^4$ orbits, thus achieving speed-ups of up to $10^5$ over full simulations.
Earth and Planetary Astrophysics
REBOUNDx: A Library for Adding Conservative and Dissipative Forces to Otherwise Symplectic N-body Integrations
We release REBOUNDx, an open-source C library for incorporating additional effects into REBOUND N-body integrations, together with a convenient Python wrapper.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
High order symplectic integrators for planetary dynamics and their implementation in REBOUND
Since some of these methods are harder to implement and not as readily available to astronomers compared to the standard WH method, they are not used as often.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Computational Physics
Hybrid Symplectic Integrators for Planetary Dynamics
A hybrid integrator achieves high accuracy during close encounters by using a high order integration scheme for the duration of the encounter while otherwise using a standard 2nd order Wisdom-Holman scheme, thereby optimizing both speed and accuracy.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Dynamical Systems
JANUS: A bit-wise reversible integrator for N-body dynamics
We discuss the implementation ofJANUS and present tests of its accuracy and speed by performing and analyzing long-term integrations of the Solar System.
Instrumentation and Methods for Astrophysics Cosmology and Nongalactic Astrophysics Earth and Planetary Astrophysics
A new paradigm for reproducing and analyzing N-body simulations of planetary systems
The reproducibility of experiments is one of the main principles of the scientific method.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics
Second-order variational equations for N-body simulations
First-order variational equations are widely used in N-body simulations to study how nearby trajectories diverge from one another.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Classical Analysis and ODEs Dynamical Systems
WHFast: A fast and unbiased implementation of a symplectic Wisdom-Holman integrator for long term gravitational simulations
We implement symplectic correctors up to order eleven that significantly reduce the energy error.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Numerical Analysis Chaotic Dynamics Computational Physics
IAS15: A fast, adaptive, high-order integrator for gravitational dynamics, accurate to machine precision over a billion orbits
The algorithm can handle close encounters and high-eccentricity orbits.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Solar and Stellar Astrophysics Numerical Analysis
A proposal for community driven and decentralized astronomical databases and the Open Exoplanet Catalogue
It is the only catalogue that can correctly represent the orbital structure of planets in arbitrary binary, triple and quadruple star systems, as well as orphan planets.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Computational Physics Data Analysis, Statistics and Probability
REBOUND: An open-source multi-purpose N-body code for collisional dynamics
The performance of the plane-sweep algorithm is superior to a tree code for simulations in which one dimension is much longer than the other two and in simulations which are quasi-two dimensional with less than one million particles.
Earth and Planetary Astrophysics Instrumentation and Methods for Astrophysics Dynamical Systems Computational Physics
