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Title:
Smoothed particle hydrodynamics - Theory and application to non-spherical stars
Authors:
Gingold, R. A.; Monaghan, J. J.
Affiliation:
AA(Cambridge University, Cambridge, England), AB(Cambridge University, Cambridge, England; Monash University, Clayton, Victoria, Australia)
Publication:
Royal Astronomical Society, Monthly Notices, vol. 181, Nov. 1977, p. 375-389. (MNRAS Homepage)
Publication Date:
11/1977
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
HYDRODYNAMICS, PARTICLE THEORY, STELLAR MODELS, ASTROPHYSICS, STELLAR ROTATION, STELLAR STRUCTURE
Comment:
A&AA ID. AAA020.062.017
Bibliographic Code:
1977MNRAS.181..375G

Abstract

A hydrodynamic code applicable to a space of an arbitrary number of dimensions is discussed and applied to a variety of polytropic stellar models. The principal feature of the method is the use of statistical techniques to recover analytical expressions for the physical variables from a known distribution of fluid elements. The equations of motion take the form of Newtonian equations for particles. Starting with a nonaxisymmetric distribution of approximately 80 particles in three dimensions, the method is found to reproduce the structure of uniformly rotating and magnetic polytropes to within a few percent. The method may be easily extended to deal with more complicated physical models.

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