galprop

Software for cosmic-ray propagation, gamma-rays, synchrotron.
Current version (r2766) includes
* accurate propagation scheme
* polarized synchrotron
* free-free emission and absorption
* new convection models
* anisotropic diffusion
* primary positrons
* free-escape boundary conditions
* new hadronic gamma-ray production models
* new injection spectral breaks
* upwards compatible with latest HEALPix
* improved HEALPix skymap format
* full reference output for a sample run
* deuterium production by pp fusion
* JF12 B-field
* hadronic losses
Full details in the Explanatory Supplement and README.

Now at https://gitlab.mpcdf.mpg.de/aws/galprop

Older versions, datasets etc: http://galprop.stanford.edu.
See also
http://www.mpe.mpg.de/~aws/propagate.html
https://sourceforge.net/projects/galplot
http://sourceforge.net/projects/galpropskymapco
https://sourceforge.net/projects/gcrconvert
https://sourceforge.net/projects/galpropsynchrotron synchrotron routines.