Results 231 to 240 of about 3,956 (262)

Stellar Dynamics and Molecular Dynamics: Possible Analogies

Lecture Notes in Physics, 2003
In stellar dynamics one is accostumed to deal with the Lynden-Bell distribution, which presents two peculiar characteristics: a) it resembles the quantum Fermi-Dirac distribution, and b) describes a state of metaequilibrium, that is expected to evolve on much longer time scales to a standard Maxwell-Boltzmann equilibrium.
Andrea Carati, Luigi Galgani, Galgani Luigi   +2 more
exaly   +3 more sources

Stellar dynamics

2023
The stellar dynamics of virialised systems is analysed within the search of undamped oscillations. In the case of a time-dependent Hamiltonian qualified after a generic Terzic'-Kandrup potential, the Emrakov-Lewis-Leach invariant is specified; as a result, an infinite set of conservation laws defining constants of motion is demonstrated to be obtained.
Orchidea Maria Lecian, Brunello Tirozzi
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The Dynamics of Stellar Jets

Astrophysics and Space Science, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Raga, A. C., Cantó, J., D'Alessio, P.
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Dynamical Evolution of Stellar Systems

EAS Publications Series, 2016
Dynamical simulations have become a powerful tool to study the evolution of star clusters due to hardware and software progresses in recent years. Here, I review the state of the art of N-body and other simulation techniques and show what we have learned from these simulations about the dynamical evolution of star clusters.
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Statistical Hypotheses in Stellar Dynamics

Physical Review, 1946
This paper starts with a short review of the usual methods of stellar dynamics and analyzes the underlying hypotheses. The most successful approach to stellar dynamics has been the one which neglects interactions between nearby stars (because they are weak) and takes into consideration the motion of stars in a smooth field of force only, produced by ...
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Applications to stellar and galactic dynamics

Celestial Mechanics, 1988
Computation and a wealth of new observational techniques have reinvigorated dynamical studies of galaxies and star clusters. These objects are examples of the gravitational n-body problem with n in the range from a few hundred to 1011. Relaxation effects dominate at the low end and are completely negligible at the high end.
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Regularization in stellar dynamics

Bulletin astronomique, 1968
On présente les traitements numériques et analytiques des rencontres (ainsi que des collisions doubles) en utilisant le modèle du problème gravitationel des n corps. L'effet du champ Newtonien de gravitation devient infini quand la distance des corps mis en jeu tend vers zéro.
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Principles of Stellar Dynamics

Physics Bulletin, 1961
By S. Chandrasekhar New York: Dover Publications, Inc. Pp. x+313. Price $2.00 Among the classics of physics and astronomy now reappearing in the Dover edition, it is especially pleasing to welcome this book, which nearly twenty years ago developed the application of generalized dynamics to the largest assemblage of " molecules " known, the hundred ...
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Dynamics of Stellar System

1975
I/ Spherical Systems.- Dynamical Theory of Spherical Stellar Systems with Large N (Invited Paper).- Homology in the Evolution of Cluster Cores.- Correlation Functions for the Gravitational Force.- Vibrations of Non-Uniform Spherical Systems.- Tidal Effects On Spherical Stellar Systems.- N-Body Simulations (Invited Paper).- The Simulation of Non ...
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Stellar Dynamics

Nature, 1939
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