Hamiltonian Normal Forms and Galactic Potentials
Astrophysics
2015-05-13 v1 Chaotic Dynamics
Abstract
The study of self-gravitating stellar systems has provided important hints to develop tools of analytical mechanics. In the present contribution we review how to exploit detuned resonant normal forms to extract information on several aspects of the dynamics in systems with self-similar elliptical equipotentials. In particular, using energy and ellipticity as parameters, we compute the instability thresholds of axial orbits, bifurcation values of low-order boxlets and phase-space fractions pertaining to the families around them. We also show how to infer something about the singular limit of the potential.
Cite
@article{arxiv.0806.3916,
title = {Hamiltonian Normal Forms and Galactic Potentials},
author = {Giuseppe Pucacco},
journal= {arXiv preprint arXiv:0806.3916},
year = {2015}
}
Comments
To be published in "Chaos in Astronomy", G. Contopoulos, P.A. Patsis (eds.), Springer