Introducing Enzo, an AMR Cosmology Application

Details Introducing Enzo, an AMR Cosmology Application Introducing Enzo, an AMR Cosmology Application

2004-03-01

arxiv.org/abs/astro-ph/0403044v1

Astronomy and Astrophysics

Astrophysics

10 pages, 4 figures. To appear in "Adaptive Mesh Refinement - Theory and Applications", Eds. T. Plewa, T. Linde & V. G. Weirs,

Scientific paper

In this paper we introduce Enzo, a 3D MPI-parallel Eulerian block-structured adaptive mesh refinement cosmology code. Enzo is designed to simulate cosmological structure formation, but can also be used to simulate a wide range of astrophysical situations. Enzo solves dark matter N-body dynamics using the particle-mesh technique. The Poisson equation is solved using a combination of fast fourier transform (on a periodic root grid) and multigrid techniques (on non-periodic subgrids). Euler's equations of hydrodynamics are solved using a modified version of the piecewise parabolic method. Several additional physics packages are implemented in the code, including several varieties of radiative cooling, a metagalactic ultraviolet background, and prescriptions for star formation and feedback. We also show results illustrating properties of the adaptive mesh portion of the code. Enzo is publicly available and can be downloaded at http://cosmos.ucsd.edu/enzo/ .

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