Astrophysical N-body simulations: algorithms and challenges

The subjects and key questions faced by computational astrophysics using N-body simulations are discussed in the fields of globular star cluster dynamics, galactic nuclei and cosmological structure formation. After a comparison of the relevance of different N-body algorithms a new concept for a more...

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Bibliographic Details
Published inarXiv.org
Main Author Spurzem, Rainer
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 20.11.1997
Subjects
Algorithms
Astrophysics
Computational astrophysics
Computational fluid dynamics
Computer simulation
Dynamical systems
Fluid flow
Galactic nuclei
Simulation
Smooth particle hydrodynamics
Star clusters
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Summary:The subjects and key questions faced by computational astrophysics using N-body simulations are discussed in the fields of globular star cluster dynamics, galactic nuclei and cosmological structure formation. After a comparison of the relevance of different N-body algorithms a new concept for a more flexible customized special purpose computer based on a combination of GRAPE and FPGA is proposed. It is an ideal machine for all kinds of N-body simulations using neighbour schemes, as the Ahmad-Cohen direct N-body codes and smoothed particle hydrodynamics for systems including gas.
Bibliography:content type line 50
SourceType-Working Papers-1
ObjectType-Working Paper/Pre-Print-1
ISSN:2331-8422