| Issue |
A&A
Volume 455, Number 2, August IV 2006
|
|
|---|---|---|
| Page(s) | 499 - 507 | |
| Section | Galactic structure, stellar clusters, and populations | |
| DOI | https://doi.org/10.1051/0004-6361:20054721 | |
| Published online | 04 August 2006 | |
Global dynamics in galactic triaxial systems. I
1
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Paseo del Bosque S/N, La Plata (1900), Argentina e-mail: jperez@fcaglp.unlp.edu.ar
2
Instituto de Astrofísica de La Plata (IALP), Consejo Nacional de Investigaciones Cientícas y Técnicas de la República Argentina
Received:
19
December
2005
Accepted:
18
April
2006
We present a theoretical analysis of the global dynamics in a triaxial galactic system using a 3D integrable Hamiltonian as a simple representation. We include a thorough discussion on the effect of adding a generic non-integrable perturbation to the global dynamics of the system. We adopt the triaxial Stäckel Hamiltonian as the integrable model and compute its resonance structure in order to understand its global dynamics when a perturbation is introduced. We provide a theoretical discussion about diffusive processes taking place in phase space.
Key words: methods: numerical / galaxies: structure / chaos / diffusion / galaxies: kinematics and dynamics
© ESO, 2006
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