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The Stability of Axisymmetric Galaxy Models with Anisotropic Dispersions

Published online by Cambridge University Press:  04 August 2017

Tim de Zeeuw ,
Marijn Franx ,
Jacques Meys ,
Karel Brink  and
Harm Habing
Tim de Zeeuw
Affiliation:
Sterrewacht Leiden
Marijn Franx
Affiliation:
Sterrewacht Leiden
Jacques Meys
Affiliation:
Sterrewacht Leiden
Karel Brink
Affiliation:
Sterrewacht Leiden
Harm Habing
Affiliation:
Sterrewacht Leiden

Extract

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The possible equilibrium configurations for elliptical galaxies and the bulges of spiral galaxies are no longer thought to be confined to the small class of axisymmetric systems with isotropic velocity dispersions. Many of these systems are not supported by rotation but instead by anisotropic velocity dispersions which are maintained by nonclassical integrals of motion (e.g., Binney 1978), and may be triaxial. Few theoretical models for such systems exist (Schwarzschild 1981). Here we discuss some axisymmetric models that we have constructed by means of Schwarzschild's (1979) selfconsistent method, and in particular their stability.

Type
V. Spheroidal Systems
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 285 - 286
Copyright
Copyright © Reidel 1983 

References

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