Dynamical spectra of barred galaxies.
Abstract
We apply the method of dynamical spectra in the case of a barred galaxy potential. We show its efficiency in detecting tiny ordered domains embedded in big chaotic seas. We can separate ordered from chaotic domains in the corotation region by integrating a number of orbits only for 10-20 orbital periods each. The method is more efficient than the use of the Poincare section, while other methods require a much longer time. Our method of separation between ordered and chaotic orbits is useful when attacking the self-consistency problem in the corotation region of galaxies. Then we describe the differences between the dynamical spectra of orbits in a transition region from ordered to chaotic.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 1997
- Bibcode:
- 1997A&A...326..493P
- Keywords:
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- GALAXIES: KINEMATICS AND DYNAMICS