Synopsis
The XSPEC zvfeabs model: photoelectric absorption with free Fe edge energy.
Syntax
xszvfeabs The xszvfeabs model is a multiplicative model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xszvfeabs", "mdl")
>>> print(mdl)Create a component of the xszvfeabs 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.metals thawed 1 0 100 mdl.FEabun thawed 1 0 100 mdl.FEKedge thawed 7.11 7 9.5 keV 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). |
| metals | The abundance relative to solar. |
| FEabun | The iron abundance relative to solar. |
| FEKedge | The Fe K edge energy, in keV. |
| Redshift | The redshift of the absorber. |
References
XSPEC version
CIAO 4.18 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.