P. Hut

Publications260
h-index50
Citations12,376
Highly Influential Citations969
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A hierarchical O(N log N) force-calculation algorithm
TLDR
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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Gravitational N-body Simulations
Gravitational N-body simulations, that is numerical solutions of the equations of motions for N particles interacting gravitationally, are widely used tools in astrophysics, with applications from…
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Formation of massive black holes through runaway collisions in dense young star clusters
TLDR
Numerical simulations of the evolution and motion of stars within the clusters find that for MGG 11 dynamical friction leads to the massive stars sinking rapidly to the centre of the cluster, where they participate in a runaway collision.
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HOP: A New group finding algorithm for N body simulations
TLDR
While the resulting algorithm has several user-chosen parameters, it is shown that the results are insensitive to most of these, the exception being the outer density cutoff of the groups.
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Dynamical Formation of Close Binary Systems in Globular Clusters
We know from observations that globular clusters are very efficient catalysts in forming unusual short-period binary systems or their offspring, such as low-mass X-ray binaries (LMXBs; neutron stars…
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Star cluster ecology-IV. Dissection of an open star cluster: photometry
The evolution of star clusters is studied using N-body simulations in which the evolution of single stars and binaries is taken self-consistently into account. Initial conditions are chosen to…
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Binary-single star scattering. I: Numerical experiments for equal masses
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The Lives and Deaths of Star Clusters near the Galactic Center
We study the evolution and observability of young, compact star clusters near the Galactic center, such as the Arches and Quintuplet systems. The clusters are modeled by integrating the equations of…
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Tidal evolution in close binary systems
  • P. Hut
  • Computer Science
  • 1 June 1981
Core radius and density measurements in N-body experiments Connections with theoretical and observational definitions
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