Should Elliptical Galaxies Be Idealised as Collisionless Equilibria?

Details Should Elliptical Galaxies Be Idealised as Collisionless Equilibria? Should Elliptical Galaxies Be Idealised as Collisionless Equilibria?

2000-11-15

arxiv.org/abs/astro-ph/0011302v2

Space Sci.Rev. 102 (2002) 101-114

Astronomy and Astrophysics

Astrophysics

an invited talk at: The Workshop on Observational Manifestations of Chaos in Astrophysical Objects, Sternberg Astronomical Ins

Scientific paper

This talk summarises several different lines of argument suggesting that one
should not expect cuspy nonaxisymmetric galaxies to exist as robust, long-lived
collisionless equilibria, i.e., that such objects should not be idealised as
time-independent solutions to the collisionless Boltzmann equation.

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