A simple Voigt line profile. The Voigt profile is the convolution of a Gaussian and a Lorentzian.
The parameters are:
par1 | , line energy in keV |
par2 | , gaussian line width in keV |
par3 | , lorentzian FWHM line width in keV |
Norm | , total photons/cm/s in the line |
Both the gaussian and lorentzian lines are truncated at the point that the integrated flux under the line is within a critical value of the total flux. This critical value can be changed using xset LINECRITLEVEL. The default critical value is .