pexrav: reflected powerlaw, neutral medium
Exponentially cut off power law
spectrum reflected from neutral material (Magdziarz & Zdziarski 1995,
MNRAS, 273, 837). The output spectrum is the sum of the cut-off power law and
the reflection component. The reflection component alone can be obtained for 
. Then the
actual reflection normalization is 
.
Note that you need to change then the limits of 
excluding zero (as then the direct component appears).
If Ec = 0 there is no cutoff in the power law. The metal and
iron abundance are variable with respect to those defined by the command abund.
The opacities are from Balucinska & McCammon (ApJ 400, 699 and 1994,
private communication). H and He are assumed to be fully ionized. Send
questions or comments to aaz@camk.edu.pl .
|
par1 |
|
|
par2 |
Ec, cutoff energy (keV) (if |
|
par3 |
relrefl, reflection scaling factor (0, no reflected component < relrefl < 1 for isotropic source above disk) |
|
par4 |
redshift, z |
|
par5 |
abundance of elements heavier than He relative to the solar abundances |
|
par6 |
iron abundance relative to that defined by abund |
|
par7 |
cosine of inclination angle |
|
norm |
photon flux at 1 keV (photons keV–1cm-2 s-1) of the cutoff broken power-law only (no reflection) in the observed frame. |
