Module for the CRPropa code to calculate the effect of plasma instabilities on the development of electromagnetic cascades. It is described in:
R. Alves Batista, A. Saveliev, E. M. de Gouveia Dal Pino. MNRAS 489 (2019) 3836. arXiv:1904.13345
If you make use of grplinst, please consider citing the above paper.
This code was designed to study the effects of plasma instabilities on the development of blazar-induced gamma-ray cascades in the intergalactic medium.
It provides approximate descriptions for some plasma instability models found in the literature. They are modelled as a cooling term for electrons/positrons. Note that this is a very rough approximation and a detailed calculation would require particle-in-cell (PIC) simulations.
To install grplinst, you will need to have CRPropa 3 installed. Go to https://github.com/CRPropa/CRPropa3/ and follow the instructions.
Now proceed with the installation of this module.
- Download the latest version of the code.
git clone https://github.com/rafaelab/grplinst.git
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Navigate into the downloaded folder and create a folder called "build/".
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Install the code with CMake and then make:
cmake ..
make
- If the code was properly compiled, you are ready to go! Make sure to add the path where grplinst.py is created to your PYTHONPATH. Alternatively, this can be hard-coded in your python script.
For consistency with CRPropa, the flag -DCMAKE_CXX_FLAGS="-std=c++11" may be required to force compilers to adopt C++11.
This program is provided 'as is', without warranties of any kind. Please use your discernement to interpret the results obtained with it.
We thank Michael Kachelries and Jacob Benestad for providing feedback that lead us to finding a few bugs.