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arXiv · 1907.09202

Orbital and escape dynamics in barred galaxies -- IV. Heteroclinic connections

Euaggelos E. Zotos·Christof Jung
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Abstract

Continuing the series of papers on a new model for a barred galaxy, we investigate the heteroclinic connections between the two normally hyperbolic invariant manifolds sitting over the two index-1 saddle points of the effective potential. The heteroclinic trajectories and the nearby periodic orbits of similar shape populate the bar region of the galaxy and a neighbourhood of its nucleus. Thereby we see a direct relation between the important structures of the interior region of the galaxy and the projection of the heteroclinic tangle into the position space. As a side result, we obtain a detailed picture of the primary heteroclinic intersection surface in the phase space.

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Euaggelos E. Zotos, Christof Jung. 2019-07-22. Orbital and escape dynamics in barred galaxies -- IV. Heteroclinic connections. https://doi.org/10.1093/mnras/stz1311

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