Evolution of the Velocity Field in Model Potentials

Details Evolution of the Velocity Field in Model Potentials Evolution of the Velocity Field in Model Potentials

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005astl...31..494o&link_type=abstract

Astronomy Letters, vol. 31, Issue 7, p.494-499

Astronomy and Astrophysics

Astronomy

Velocity Field - Structural Evolution - Model Potential

Scientific paper

We consider the evolution of the structure of the velocity field formed by the loops of the trajectory in a generalized Hénon-Heiles model potential. Box-shaped orbits alternating with periodic trajectories are shown to dominate at low values of the energy integral. Signatures of shell-and tube-shaped structures appear as the energy increases. Tube-shaped orbits are associated with stable periodic trajectories with small resonance ratios. Zones of stochastic orbits appear at values of the energy integral close to its critical value, which corresponds to the opening of the zero-velocity contour.

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