Synopsis
The XSPEC hrefl model: reflection model.
Syntax
xshrefl The xshrefl model is a multiplicative model component.
Description
The model is described at [1] .
Example
>>> 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 0 200 mdl.FeKedge frozen 7.11 7 10 keV mdl.Escfrac thawed 1 0 1000 mdl.covfac thawed 1 0 1000 mdl.Redshift frozen 0 -0.999 10
ATTRIBUTES
The attributes for this object are:
| Attribute | Definition |
|---|---|
| thetamin | The minimum angle, in degrees, between source photons incident on the slab and the slab normal. |
| thetamax | The maximum angle, in degrees, between source photons incident on the slab and the slab normal. |
| thetamobs | The angle, in degrees, between the observer's line of sight and the slab normal. |
| Feabun | The iron abundance relative to solar. |
| FeKedge | The iron K edge energy, in keV. |
| Escfrac | The fraction of the direct flux seen by the observer: see [1] for more details. |
| covfac | The normalization of the reflected continuum: see [1] for more details. |
| Redshift | The redshift. |
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelHrefl.html
XSPEC version
CIAO 4.17 comes with support for version 12.14.0k of the XSPEC models. This can be checked with the following:
% python -c 'from sherpa.astro import xspec; print(xspec.get_xsversion())' 12.14.0k
Bugs
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.