Volume 379, Issue 1 pp. L21-L24

Correlation of macroscopic instability and Lyapunov times in the general three-body problem

Seppo Mikkola

Corresponding Author

Seppo Mikkola

Tuorla Observatory, University of Turku, Väisäläntie 20, Piikkiö, Finland

National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan

E-mail: [email protected] (SM); [email protected] (KT)Search for more papers by this author
Kiyotaka Tanikawa

Corresponding Author

Kiyotaka Tanikawa

National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588, Japan

E-mail: [email protected] (SM); [email protected] (KT)Search for more papers by this author
First published: 22 May 2007
Citations: 3

ABSTRACT

We conducted extensive numerical experiments of equal mass three-body systems until they became disrupted. The system lifetimes, as a bound triple, and the Lyapunov times show a correlation similar to what has been earlier obtained for small bodies in the Solar system. Numerical integrations of several sets of differently randomized initial conditions produced the same relationship of the instability time and Lyapunov time. Marginal probability densities of the various times in the three-body experiments are also discussed. Our high accuracy numerical method for three-body orbit computations and Lyapunov time determinations is concisely described.

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