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    • Keywords


      Galaxies: orbits; regular and chaotic motion maps: averaged Hamiltonian; stability

    • Abstract


      We obtain thex - pxPoincare phase plane for a two dimensional, resonant, galactic type Hamiltonian using conventional numerical integration, a second order symplectic integrator and a map based on the averaged Hamiltonian. It is found that all three methods give good results, for small values of the perturbation parameter, while the symplectic integrator does a better job than the mapping, for large perturbations. The dynamical spectra are used to distinguish between regular and chaotic motion.

    • Author Affiliations


      N. D. Caranicolas1 N. J. Papadopoulos1

      1. Department of Physics, Section of Astrophysics, Astronomy and Mechanics, University of Thessaloniki, Thessaloniki - 540 06, Greece
    • Dates

  • Journal of Astrophysics and Astronomy | News

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