MSE is code that models the long-term evolution of hierarchical multiple-star systems (binaries, triples, quadruples, and higher-order systems) from the main sequence until remnant phase. It takes into account gravitational dynamical evolution, stellar evolution (using the sse tracks), and binary interactions (such as mass transfer and common-envelope evolution). It includes routines for external perturbations from flybys in the field, or (to limited extent) encounters in dense stellar systems such as galactic nuclei.
C++ and Fortran compilers are required, as well as Python (2/3) for the Python interface. Make sure to first compile the code using make. Please modify the Makefile according to your installation (CC, CXX, and FC should be correctly assigned).
The script test_mse.py can be used to test the installation. The script run_system.py is useful for quickly running a system.
See the user guide (doc/doc.pdf) for more detailed information.