TreePM method for two-dimensional cosmological simulations

  title={TreePM method for two-dimensional cosmological simulations},
  author={S. Ray},
  journal={Journal of Astrophysics and Astronomy},
  • S. Ray
  • Published 1 June 2004
  • Physics
  • Journal of Astrophysics and Astronomy
We describe the two-dimensional TreePM method in this paper. The 2d TreePM code is an accurate and efficient technique to carry out large two-dimensional N-body simulations in cosmology. This hybrid code combines the 2d Barnes and Hut Tree method and the 2d Particle-Mesh method. We describe the splitting of force between the PM and the Tree parts. We also estimate error in force for a realistic configuration. Finally, we discuss some tests of the code. 
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