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arXiv:1105.1082astro-ph.IM

N-body simulations of gravitational dynamics

Walter Dehnen, Justin Read

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Abstract

We describe the astrophysical and numerical basis of N-body simulations, both of collisional stellar systems (dense star clusters and galactic centres) and collisionless stellar dynamics (galaxies and large-scale structure). We explain and discuss the state-of-the-art algorithms used for these quite different regimes, attempt to give a fair critique, and point out possible directions of future improvement and development. We briefly touch upon the history of N-body simulations and their most important results.

arXiv comments
invited review (28 pages), to appear in European Physics Journal Plus
Journal reference
2011, Eur. Phys. J. Plus 126, 55
DOI
doi:10.1140/epjp/i2011-11055-3
Subjects
astro-ph.IMInstrumentation and Methods for Astrophysics physics.comp-phComputational Physics

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    • > in general That's too broad to answer. Let's narrow to our solar system, or a close approximation, first. Below, I'll step up to more complicated arrangements, and binary black holes. These are only three or four families of (regions of) general curved spacetime; there is a…

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