zwndabs

Photo-electric absorption from approximation to a warm absorber using Balucinska-Church and McCammon (ApJ 400, 699) cross-sections. Relative abundances are set by the abund command.

where (E) is the photo-electric cross-section (NOT including Thomson scattering) and

par1	 = 	equivalent hydrogen column (in units of 10 atoms/cm )

par2	 = 	Window energy (keV)

par3	 = 	redshift