zvfeabs: photoelectric absorption with free Fe edge energy

Redshifted photoelectric absorption with all abundances tied to Solar except for iron. The Fe K edge energy is a free parameter.

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

par2 abundance relative to Solar

par3 iron abundance relative to Solar

par4 Fe K edge energy

par5 redshift z

par1	equivalent hydrogen column (in units of $10^{22}$ atoms cm $^{-2}$ )
par2	abundance relative to Solar
par3	iron abundance relative to Solar
par4	Fe K edge energy
par5	redshift z