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Binary Population Synthesis with BSE

Read the paper for details: Millisecond Pulsars from Accretion Induced Collapse naturally explain the Galactic Center Gamma-ray Excess

Supplementary reading:

Getting started

Using from scratch:

  • Install Python 3
  • Visit the AMUSE docs and install all the dependancies
  • Install AMUSE Framework and BSE with pip 
    pip install amuse-framework
pip install amuse-bse
  • Clone this repository 
    git clone https://github.com/gautam-404/Binary-Evolution.git

Running the code

  • Run 
    cd Binary-Evolution
python main.py
    In case the python program throws an MPI exception (like MPI_ERR_SPAWN: could not spawn processes), explicitly use Open-MPI instead of MPICH (refer this doc) and run echo 'export OMPI_MCA_rmaps_base_oversubscribe=yes' >> ~/.zshrc. For Bash shell, replace ~/.zshrc with ~/.bashrc. Restart your terminal.

The python code will create an output folder with evolution histories of all binary systems at the path "~/OutputFiles". See /src/BPS_eval.py which contains necessary functions that produce the data to see the total gamma-ray luminosity produced by the population as a function of time.


Contact for more info.