Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2011-08-27
Int.J.Nonlinear Mech.46:23-34,2011
Nonlinear Sciences
Chaotic Dynamics
25 pages, 35 figures
Scientific paper
To investigate non-linear dynamical systems, like for instance artificial satellites, Solar System, exoplanets or galactic models, it is necessary to have at hand several tools, such as a reliable dynamical indicator. The aim of the present work is to test a relatively new fast indicator, the Mean Exponential Growth factor of Nearby Orbits (MEGNO), since it is becoming a widespread technique for the study of Hamiltonian systems, particularly in the field of dynamical astronomy and astrodynamics, as well as molecular dynamics. In order to perform this test we make a detailed numerical and statistical study of a sample of orbits in a triaxial galactic system, whose dynamics was investigated by means of the computation of the Finite Time Lyapunov Characteristic Numbers (FT-LCNs) by other authors.
Cincotta Pablo
Giordano Claudia
Maffione Nicolas
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