Athena

Athena is a grid-based code for astrophysical gas dynamics, based on higher-order Godunov methods, with nested and adaptive mesh capabilities. The original development efforts were supported by the NSF Information Technology Research (ITR) program. As part of the project, Athena will be made freely available to the astrophysics community, along with complete documentation and web-based training material.

The current version of the code (v3.0) implements algorithms for:

• compressible hydrodynamics and ideal MHD in one-, two-, or three-spatial dimensions,
• ideal gas equation of state with arbitrary γ (including γ = 1, an isothermal EOS),
• first-, second- or third-order characteristic interpolation in the primitive variables,
• numerical fluxes computed using a variety of approximate and/or linearized Riemann solvers,
• source terms due to a static gravitational potential,
• parallelization using domain decomposition with MPI.

website: http://www.astro.princeton.edu/~jstone/athena.html