Microphysics: Equation of State

The EOS routines and tables were put together by Christian D. Ott and Evan O'Connor. Please feel free to use them, but please make reference to Evan O’Connor and Christian D. Ott, A New Spherically-Symmetric General Relativistic Hydrodynamics Code for Stellar Collapse to Neutron Stars and Black Holes, Class. Quant. Grav., 27 114103, 2010.

If you have any questions or have discovered a bug in our routines/tables, please e-mail us at .

Disclaimer: Please note that the routines and tables provided here come with absolutely no warranty and we are unable to guarantee that we will be able to provide support or help if you run into problems integrating them with your simulation code. If you decide to use the provided EOS routines and data in published work, it is YOUR responsibility to check their physical correctness and consistency.

Licensing: For the time being (until licensing issue are sorted out), we release the code under the creative commons attribution-noncommercial-share alike license:
Creative Commons License.
This means that you may use the code and tables, but must make reference to our work, must not use them for commercial purposes, and any code including or using our routines or part of them may be made publically available, and if so, only under the same license.

  • Equation of state maker routines:
    Fortran 90 routines that allow you to read in original EOS tables (i.e. H. Shen et al. 2011 or G. Shen et al. 2011ab) and construct an .h5 table compatible with EOSdriver. This is available via anonymous svn checkout:
    svn checkout --username anon --password anon svn://stellarcollapse.org/projects/EOSmaker

  • Equation of state driver routines:
    Fortran 90 routines that allow you to read in our EOS tables and that contain various routines for interpolation and EOS inversion are available via anonymous svn checkout:
    svn checkout --username anon --password anon svn://stellarcollapse.org/projects/EOSdriver
    System requirements are a Fortran 90 compiler and an installation of the HDF5 library with Fortran 90 module files and bindings.

  • Equation of State Tables:
    We provide tables for the nuclear equations of state of Lattimer and Swesty (1991) and H. Shen et al.. Details on the tables and how they were generated can be found in Evan O’Connor and Christian D. Ott, Class. Quant. Grav., 27 114103, 2010. The tables are provided in bzip2-compressed HDF5 format and are 200-250 MB in size.

    EOS variantTable name and link
    H. Shen EOS (2011, EOS2) HShenEOS_rho220_temp180_ye65_version2.0_20111026_EOSmaker_svn9.h5.bz2
    LS EOS, K = 180 MeVLS180_234r_136t_50y_analmu_20091212_SVNr26.h5.bz2
    LS EOS, K = 220 MeVLS220_234r_136t_50y_analmu_20091212_SVNr26.h5.bz2
    LS EOS, K = 375 MeVLS375_234r_136t_50y_analmu_20091212_SVNr26.h5.bz2