Synopsis
The XSPEC absori model: ionized absorber.
Syntax
xsabsori The xsabsori model is a multiplicative model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xsabsori", "mdl")
>>> print(mdl)Create a component of the xsabsori model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.PhoIndex frozen 2 0 4 mdl.nH thawed 1 0 100 10^22 atoms / cm^2 mdl.Temp_abs frozen 30000 10000 1e+06 K mdl.xi thawed 1 0 5000 mdl.Redshift frozen 0 -0.999 10 mdl.Fe_abund frozen 1 0 1e+06
ATTRIBUTES
The attributes for this object are:
| Attribute | Definition |
|---|---|
| PhoIndex | The power-law photon index. |
| nH | The Hydrogen column, in units of 10^22 cm^-2. |
| Temp_abs | The absorber temperature, in K. |
| xi | The absorber ionization state. See [1] for more details. |
| Redshift | The redshift of the absorber. |
| Fe_abund | The iron abundance with respect to solar, as set by the set_xsabund function. |
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelAbsori.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.