Journal Article

An iterative method for constructing equilibrium phase models of stellar systems

S. A. Rodionov, E. Athanassoula and N. Ya. Sotnikova

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 392, issue 2, pages 904-916
Published in print January 2009 | ISSN: 0035-8711
Published online December 2008 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2008.14110.x
An iterative method for constructing equilibrium phase models of stellar systems

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We present a new method for constructing equilibrium phase models for stellar systems, which we call the iterative method. It relies on constrained, or guided evolution, so that the equilibrium solution has a number of desired parameters and/or constraints. This method is very powerful, to a large extent due to its simplicity. It can be used for mass distributions with an arbitrary geometry and a large variety of kinematical constraints. We present several examples illustrating it. Applications of this method include the creation of initial conditions for N-body simulations and the modelling of galaxies from their photometric and kinematic observations.

Keywords: methods: N-body simulations; galaxies: kinematics and dynamics

Journal Article.  8765 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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