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bosonstar's Introduction

BosonStar - A general solver for bosonic stars

This solver gives solutions for the following Boson Stars

Matter type dimension cosmological constant potential
Scalar Complex arbitrary yes 1/2 mu^2 phi^2
complex proca star with selfinteractions 4 no 1/2 mu^2 A^nu A_nu + 1/4 c4 (A^nu A_nu)^2

The aim of this repo is that code I used for some project can maybe be reused and doesn't get lost and to spread the boson star fun. I used these papers to write this repo, please cite them since they did all of the hard work.

Matter type arXiv id
Scalar Complex 0309131
complex proca star with selfinteractions 1805.09867
complex proca star 1609.01735
1508.05395

Installation

To install this code, run python setup.py install --user in the root directory.

Testing

For all modules available on this repo there I check consistency with constraint equations automatically with every change of the code. This doesn't guarantee that the code is bug-free, but is not completely unreasonable.

Examples

There are two scripts in the example folder, scalar_star_solver.py and complex_vector_star_selfinteracting_solver.py. They contain examples on how to use the code, especially some good guesses for the shooting that produce reasonable results.

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