Direct N-body simulations
TLDR
In this article, a special high-accuracy direct force summation N-body algorithms and their relevance for the simulation of the dynamical evolution of star clusters and other gravitating n-body systems in astrophysics are presented, explained and compared with other methods.About:
This article is published in Journal of Computational and Applied Mathematics.The article was published on 1999-09-30 and is currently open access. It has received 143 citations till now. The article focuses on the topics: Fokker–Planck equation & Gravitation.read more
Citations
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Journal ArticleDOI
Performance Analysis of Direct N-Body Algorithms on Special-Purpose Supercomputers
Stefan Harfst,Alessia Gualandris,Alessia Gualandris,David Merritt,Rainer Spurzem,Rainer Spurzem,Simon Portegies Zwart,Simon Portegies Zwart,Peter Berczik,Peter Berczik,Peter Berczik +10 more
TL;DR: A performance analysis of direct N-body codes on two parallel supercomputers that incorporate special-purpose boards, allowing as many as four million particles to be integrated, finds that the computation time scales well with processor number.
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nbody6++gpu: ready for the gravitational million-body problem
Long Wang,Rainer Spurzem,Sverre J. Aarseth,Keigo Nitadori,Peter Berczik,M. B. N. Kouwenhoven,Thorsten Naab +6 more
TL;DR: NBODY6++ as mentioned in this paper is an optimized version of NBODY6 with hybrid parallelization methods (MPI, GPU, OpenMP, and AVX/SSE) to accelerate large direct N-body simulations and in particular to solve the million-body problem.
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Relativistic Binaries in Globular Clusters
TL;DR: This discussion of globular cluster evolution will focus on the processes that boost the production of tight binary systems and the subsequent interaction of these binaries that can alter the properties of both bodies and can lead to exotic objects.
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Dynamics of Planetary Systems in Star Clusters
TL;DR: In this paper, the authors explore the possibility that the postformation disruption of planetary systems associated with the stellar encounters in long-lived clusters is due to the discovery of freely floating low-mass objects in star forming regions.
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Core Formation by a Population of Massive Remnants
TL;DR: In this article, a dynamical effect resulting from the accumulation of massive stars and stellarmass black holes at the cluster centers is proposed, which is responsible for the formation of all globular clusters and possibly in other systems as well.
References
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Book
Computer simulation using particles
R W Hockney,J W Eastwood +1 more
TL;DR: In this paper, a simulation program for particle-mesh force calculation is presented, based on a one-dimensional plasma model and a collisionless particle model, which is used to simulate collisionless particle models.
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A fast algorithm for particle simulations
TL;DR: An algorithm is presented for the rapid evaluation of the potential and force fields in systems involving large numbers of particles whose interactions are Coulombic or gravitational in nature, making it considerably more practical for large-scale problems encountered in plasma physics, fluid dynamics, molecular dynamics, and celestial mechanics.
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A hierarchical O(N log N) force-calculation algorithm
Josh Barnes,Piet Hut +1 more
TL;DR: A novel method of directly calculating the force on N bodies that grows only as N log N is described, using a tree-structured hierarchical subdivision of space into cubic cells, each is recursively divided into eight subcells whenever more than one particle is found to occupy the same cell.
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Smoothed particle hydrodynamics.
TL;DR: In this paper, the theory and application of Smoothed particle hydrodynamics (SPH) since its inception in 1977 are discussed, focusing on the strengths and weaknesses, the analogy with particle dynamics and the numerous areas where SPH has been successfully applied.
Book
Dynamical evolution of globular clusters
TL;DR: The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press as mentioned in this paper.