Equations of state for Multi-Messenger Astronomy (E4MMA)

This C++ code constructs the equation of state for use in simulations of core-collapse supernovae and neutron star mergers. This code is based on Du et al. (2019), and Du et al. (2022). The source code is available on github.

You may either use one of the Docker images (see Using Docker) or compile the code yourself. You do not need to compile the code to use the equation of state (EOS) tables – they can be read by any application which can read HDF5 files. For more information on compiling the code, see Compiling E4MMA.

More documentation will be added as time permits.

• Tables to download
  • Feb. 6 2022, first release
• Table format
  • Grid
  • Physical quantities
  • Flags
  • Quantities for the solver
  • Composition
  • Thermodynamic quantities
  • String arrays
  • Electron and photon table
  • Nuclear masses table
• Using Docker
• Python/Jupyter examples
  • Reading a table and plotting with h5py/matplotlib
• Command-line examples
  • EOS at a single point with nuclei
  • EOS at a single point
  • Help
  • Small table
  • Small table with derivatives
  • Single point or small table with more detail
• Compiling E4MMA
  • E4MMA Alpha 5
• Rest mass contribution
• Chemical potentials
• Variable transformations
  • Converting between (nn,np) and (nB,ne)
  • Converting between (nn,np) and (nB,Ye)
  • Converting between (nn,np) and (nB,Ye) with muons
• Speed of sound in a multicomponent system
  • In terms of baryon density and electron fraction
• EOS generator eos_nuclei
  • Class eos_nuclei
• Other classes
  • Class eos
  • Class partition_func
  • Class eos_crust_virial_v2
  • Class eos_had_skyrme_ext
• Todo list
• How to get help

• Index

• Module Index

• Search Page