reflect: reflection from neutral material

Convolution model for reflection from neutral material according to the method of Magdziarz & Zdziarski (1995, MNRAS, 273, 837). This is a generalization of the pexrav and bexrav models. When using this model it  is essential to extend the energy range over which the model is calculated  because photons at higher energies are Compton downscattered into the target  energy range. The energy range can be extended using the extend command. The upper limit on the energies should be set above that for which the  input spectrum has significant flux. See the help on pexrav or bexrav for further information and admonitions.

par1	reflection scaling factor (1 for isotropic source above disk)
par2 = z	redshift
par3	abundance of elements heavier than He relative to the solar abundances
par4	iron abundance relative to the above
par5	cos i, the inclination angle