cabs: Optically-thin Compton scattering.

Optically-thin Compton scattering.


\begin{displaymath}
M(E)=exp(-\eta_H\sigma_T(E))
\end{displaymath}

where $\sigma_T(E)$ is the Thomson cross-section with Klein-Nishina corrections at high energies. Note that this model does not do frequency downshifting so is only valid for scattering out of the beam.

par1=$\eta_H$ hydrogen column (in units of $10^{22}$ atoms cm$^{-2}$)