The Helmholtz Hierarchy: phase space statistics of cold dark matter

  title={The Helmholtz Hierarchy: phase space statistics of cold dark matter},
  author={Svetlin Valentinov Tassev},
  journal={Journal of Cosmology and Astroparticle Physics},
  • S. Tassev
  • Published 1 December 2010
  • Physics
  • Journal of Cosmology and Astroparticle Physics
We present a new formalism to study large-scale structure in the universe. The result is a hierarchy (which we call the ``Helmholtz Hierarchy'') of equations describing the phase space statistics of cold dark matter (CDM). The hierarchy features a physical ordering parameter which interpolates between the Zel'dovich approximation and fully-fledged gravitational interactions. The results incorporate the effects of stream crossing. We show that the Helmholtz hierarchy is self-consistent and obeys… Expand
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