gammALPs

Python packages to calculate the conversion probability between photons and axions / axion-like particles in various astrophysical magnetic fields.

For the documentation and full installation instructions see: https://gammaalps.readthedocs.io/en/latest

The latest  release includes a number of pull requests that improve memory handling, a new magnetic field model, and improved numerical precision:

• The numerical prefactors entering the momentum difference terms (the Delta terms) are now derived using their definitions from physical constants using the astropy.units and astropy.constants modules (PR #27 )
• A new magnetic field environment has been added, which describes a structured magnetic field in a galaxy cluster (PR #28 #29 #30 ) as used in Libanov & Troitsky (2020). This is also included in a new tutorial notebook.
• Memory handling has been improved, in particular, the transfer matrices are not stored in memory any longer (PR #31)
• Spline support has been added for the photon-photon dispersion in AGN jets (PR #32, #33), as described in Davies et al. (2022)