An Iterative Method for Constructing Equilibrium Phase Models of Stellar Systems

Details An Iterative Method for Constructing Equilibrium Phase Models of Stellar Systems An Iterative Method for Constructing Equilibrium Phase Models of Stellar Systems

2008-08-14

arxiv.org/abs/0808.1980v2

Astronomy and Astrophysics

Astrophysics

14 pages, 13 figures, Accepted for publication in MNRAS

Scientific paper

10.1111/j.1365-2966.2008.14110.x

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.

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