Search Results for author: David M. Hernandez

Found 4 papers, 2 papers with code

Are long-term $N$-body simulations reliable?

no code implementations19 Oct 2019 David M. Hernandez, Sam Hadden, Junichiro Makino

$N$-body integrations are used to model a wide range of astrophysical dynamics, but they suffer from errors which make their orbits diverge exponentially in time from the correct orbits.

Earth and Planetary Astrophysics Astrophysics of Galaxies Instrumentation and Methods for Astrophysics

REBOUNDx: A Library for Adding Conservative and Dissipative Forces to Otherwise Symplectic N-body Integrations

1 code implementation15 Aug 2019 Daniel Tamayo, Hanno Rein, Pengshuai Shi, David M. Hernandez

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

Hybrid Symplectic Integrators for Planetary Dynamics

no code implementations12 Mar 2019 Hanno Rein, David M. Hernandez, Daniel Tamayo, Garett Brown, Emily Eckels, Emma Holmes, Michelle Lau, Rejean Leblanc, Ari Silburt

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

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