Radial orbit instability as a dissipation-induced phenomenon

Abstract

This paper is devoted to Radial Orbit Instability in the context of self-gravitating dynamical systems. We present this instability in the new frame of Dissipation-Induced Instability theory. This allows us to obtain a rather simple proof based on energetics arguments and to clarify the associated physical mechanism.

15 pages. Published in Monthly Notices of the RAS by the Royal Astronomical Society and Blackwell Publishing. Corrected for page style, typos, and added references

References in corpus (8)

• How universal are the density profiles of dark halos?
• On Universal Halos and the Radial Orbit Instability
• Stability of spherical stellar systems I : Analytical results
• The Radial Orbit Instability in Collisionless N-Body Simulations
• Dissipationless collapse of a set of N massive particles
• Partial suppression of the radial orbit instability in stellar systems
• Stability of spherically symmetric steady states in galactic dynamics against general perturbations
• Stability of spherical stellar systems II : Numerical results

Cited by in corpus (7)

• Anatomy of Eddington-like inversion methods in the context of dark matter searches
• Spherical symmetry breaking in cold gravitational collapse of isolated systems
• Radial orbit instability: review and perspectives
• Discreteness effects, $N-$body chaos and the onset of radial-orbit instability
• Radially anisotropic systems with $r^{-\alpha }$ forces. II: radial-orbit instability
• Radial orbit instability in systems of highly eccentric orbits: Antonov problem reviewed
• A Birman-Schwinger principle in galactic dynamics