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    • TreePM: A code for cosmological N-body simulations

      J. S. Bagla

      Volume 23 Issue 3-4 December 2002 pp 185-196

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/023/03-04/0185-0196

    • Keywords

       

      Gravitation; methods:numerical; cosmology:large scale structure of the universe

    • Abstract

       

      We describe the TreePM method for carrying out large N-Body simulations to study formation and evolution of the large scale structure in the Universe. This method is a combination of Barnes and Hut tree code and Particle-Mesh code. It combines the automatic inclusion of periodic boundary conditions of PM simulations with the high resolution of tree codes. This is done by splitting the gravitational force into a short range and a long range component. We describe the splitting of force between these two parts. We outline the key differences between TreePM and some other N-Body methods.

    • Author Affiliations

       

      J. S. Bagla1

      1. Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad - 211 019, India

    • Dates

       
      Published
      December 2002
      Manuscript received
      13 June 2002
      Accepted
      14 November 2002

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