Synopsis
The XSPEC zwabs model: photoelectric absorption, Wisconsin cross-sections.
Syntax
xszwabs The xszwabs model is a multiplicative model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xszwabs", "mdl") >>> print(mdl)
Create a component of the xszwabs model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.nH thawed 1 0 1e+06 10^22 atoms / cm^2 mdl.Redshift frozen 0 -0.999 10
ATTRIBUTES
The attributes for this object are:
Attribute | Definition |
---|---|
nH | The equivalent hydrogen column (in units of 10^22 atoms/cm^2). |
Redshift | The redshift of the absorber. |
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelWabs.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.
See Also
- models
- xswabs