English

Radial orbit instability: review and perspectives

Astrophysics of Galaxies 2016-08-03 v2

Abstract

This paper presents elements about the radial orbit instability, which occurs in spherical self-gravitating systems with a strong anisotropy in the radial velocity direction. It contains an overview on the history of radial orbit instability. We also present the symplectic method we use to explore stability of equilibrium states, directly related to the dissipation induced instability mechanism well known in theoretical mechanics and plasma physics.

Keywords

Cite

@article{arxiv.0910.5177,
  title  = {Radial orbit instability: review and perspectives},
  author = {Lionel Maréchal and Jérôme Perez},
  journal= {arXiv preprint arXiv:0910.5177},
  year   = {2016}
}

Comments

10 pages, submitted to Transport Theory and Statistical Physics, proceedings of Vlasovia 2009 International Conference. Corrected for typos, redaction, and references added

R2 v1 2026-06-21T14:03:56.893Z