The XSPEC hrefl model: reflection model.
xshrefl The xshrefl model is a multiplicative model component.
The model is described at  .
>>> create_model_component("xshrefl", "mdl") >>> print(mdl)
Create a component of the xshrefl model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.thetamin frozen 0 0 90 mdl.thetamax frozen 90 0 90 mdl.thetaobs thawed 60 0 90 mdl.Feabun frozen 1 0 100 mdl.FeKedge frozen 7.11 7 10 keV mdl.Escfrac thawed 1 0 500 mdl.covfac thawed 1 0 500 mdl.redshift frozen 0 -0.999 10
The attributes for this object are:
The minimum angle, in degrees, between source photons incident on the slab and the slab normal.
The maximum angle, in degrees, between source photons incident on the slab and the slab normal.
The angle, in degrees, between the observer's line of sight and the slab normal.
The iron abundance relative to solar.
The iron K edge energy, in keV.
The fraction of the direct flux seen by the observer: see  for more details.
The normalization of the reflected continuum: see  for more details.
-  https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelHrefl.html
CIAO 4.12 comes with support for version 12.10.1n of the XSPEC models. This can be checked with the following:
% python -c 'from sherpa.astro import xspec; print(xspec.get_xsversion())' 12.10.1n
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.