EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 455/2 Article
Free access article

Issue A&A
Volume 455, Number 2, August IV 2006
Page(s) 499 - 507
Section Galactic structure, stellar clusters, and populations
DOI http://dx.doi.org/10.1051/0004-6361:20054721



A&A 455, 499-507 (2006)
DOI: 10.1051/0004-6361:20054721

Global dynamics in galactic triaxial systems. I

P. M. Cincotta, C. M. Giordano1, 2, 1, 2 and M. J. Pérez1, 2

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)

Abstract
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


What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.