Ergodic Concepts in Stellar Dynamics

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The study of chaotic motions in stellar systems is just beginning to reach the "true" astronomers. This is an exceedingly valuable survey of this striking scientific development which will be important reading for students.


Structural and dynamical forms of elliptical and dwarf galaxies.- Some clues about the dynamics of globular clusters from high-resolution observation.- Diffusion of stellar orbits in the galactic disk.- Ergodic methods in stellar dynamics.- On a notion of weak stability and its relevance for celestial mechanics and molecular dynamics.- Recent developments in the dynamics of nonlinear Hamiltonian systems with many degrees of freedom.- Numerical exploration of the circular billiard with gravity.- Ergodicity and mixing in gravitating systems.- Chaotic itineracy and clustered motion in globally coupled symplectic map system.- Lyapunov analysis of stable chaos in self-gravitating many body systems.- Stability of the modified Konishi-Kaneko system.- Mixing transformations of N particles conserving almost all classical integrals.- Symplectic integration without roundoff error.- Discreteness noise versus force errors in N-body simulations.- Core motions and global chaotic oscillations.- N-body systems: Computer image and reality.- The approach to integrability in N-body systems with a central point mass.- On the non-trivial concept of relaxation in N-body systems.- Gravothermal oscillations.- Recent results on the stability of anisotropic stellar systems.- The stability of the solar system.- The one-dimensional three-body problem: Numerical simulations.- Order and chaos in "collisionless" numerical simulations.- On the permissible percentage of chaotic orbits in various morphological types of galaxies.- Minimum energy states of a self-gravitating system.- Effective collision term induced by coarse-graining.- Theoretical and numerical investigation of the stability of flattened galaxies.- The evolution of orbits in the stellar disk as a purely discontinuous random process.- Interacting spherical stellar systems.- How faithful are n-body simulations of disc galaxies? - artificial suppression of stellar dynamical instabilities.- SPH simulations of the gas flow in normal spiral galaxies.- Regular orbits and cantori in the potential of the barred galaxy NGC 936.- The role of stochastic motion in a central field with a bar-like perturbation.- A hierarchical model of patchy-structured galaxies and evolutionary processes.- Evolution of clusters of galaxies.- Smoothing of the cosmic background radiation by multiple gravitational scattering.- Angular momentum of galaxies within the local supercluster.- 10 problems the solutions of which can seriously influence stellar dynamics.- Comments on "10 key problems".

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Ergodic Concepts in Stellar Dynamics
Proceedings of an International Workshop Held at Geneva Observatory University of Geneva, Switzerland, 1-3 March 1993
Kartonierter Einband
Springer, Berlin
Physik & Astronomie
Anzahl Seiten
H17mm x B236mm x T155mm
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