A modification of a spectrum due to scattering off dust on the line-of-sight. The model assumes that the scattered flux goes into a uniform disk whose size has a 1/E dependence and whose total flux has a 1/E2 dependence.
|
par1 |
scattering fraction at 1 keV |
|
par2 |
size of halo at 1 keV in units of the detector beamsize |