Chaos in Barred Galaxy Models

Details Chaos in Barred Galaxy Models Chaos in Barred Galaxy Models

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ap%26ss.259...45c&link_type=abstract

Astrophysics and Space Science, v. 259, Issue 1, p. 45-56 (1998).

Astronomy and Astrophysics

Astrophysics

9

Scientific paper

We investigate the regular and chaotic motion in a model potential found using the recent developments of the Inverse Problem of Dynamics. The potential describes the motion in the central parts of a barred galaxy. In the absence of rotation chaotic motion is observed when the perturbation strength is near the escape perturbation for a fixed value of the energy. In the rotating cases one observes that the area of chaotic motion on the surface of section decreases as the angular velocity Ω increases and finally all orbits become regular. The character of motion is also checked by computing the Liapunov characteristic exponents in all cases.

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