Noise, friction and the radial-orbit instability in anisotropic stellar systems: stochastic N–body simulations
Open Access
- 1 October 2019
- journal article
- research article
- Published by Cambridge University Press (CUP) in Proceedings of the International Astronomical Union
- Vol. 15 (S364), 152-157
- https://doi.org/10.1017/s1743921321001484
Abstract
By means of numerical simulations we study the radial-orbit instability in anisotropic self-gravitating N–body systems under the effect of noise. We find that the presence of additive or multiplicative noise has a different effect on the onset of the instability, depending on the initial value of the orbital anisotropy.Keywords
This publication has 15 references indexed in Scilit:
- Radially anisotropic systems with r−α forces – II: radial-orbit instabilityMonthly Notices of the Royal Astronomical Society, 2017
- On the nature of the radial orbit instability in spherically symmetric collisionless stellar systemsMonthly Notices of the Royal Astronomical Society, 2015
- Partial Suppression of the Radial Orbit Instability in Stellar SystemsThe Astrophysical Journal, 2006
- Quasisymplectic integrators for stochastic differential equationsPhysical Review E, 2004
- Noise‐enhanced Parametric Resonance in Perturbed GalaxiesThe Astrophysical Journal, 2004
- Noise-induced phase space transport in two-dimensional Hamiltonian systemsPhysical Review E, 1999
- Stochastic gravitational fluctuations in a self-consistent mean field theoryPhysics Reports, 1980
- Brownian Motion, Dynamical Friction, and Stellar DynamicsReviews of Modern Physics, 1949
- Dynamical Friction. I. General Considerations: the Coefficient of Dynamical Friction.The Astrophysical Journal, 1943
- The Kinetic Energy of a Star ClustersMonthly Notices of the Royal Astronomical Society, 1916