Photo-electric absorption from approximation to a warm absorber using Balucinska-Church & McCammon (1992) cross-sections. Relative abundances are set by the abund command.
where is the photo-electric cross-section (NOT including Thomson scattering) and
par1= | equivalent hydrogen column (in units of atoms cm) |
par2= | window energy (keV) |
The zwndabs variant allows the user to specify a (fixed) redshift and uses the corresponding formula:
with parameters:
par1= | equivalent hydrogen column (in units of atoms cm) |
par2= | window energy (keV) |
par3=z | redshift |