Synopsis
The XSPEC compST model: Comptonization, Sunyaev & Titarchuk.
Syntax
xscompst The xscompst model is an additive model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xscompst", "mdl")
>>> print(mdl)Create a component of the xscompst model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.kT thawed 2 0.001 100 keV mdl.tau thawed 10 0.0001 200 mdl.norm thawed 1 0 1e+24
ATTRIBUTES
The attributes for this object are:
| Attribute | Definition |
|---|---|
| kT | The temperature, in keV. |
| tau | The optical depth of the plasma. |
| norm | The model normalization: see [1] for more details. |
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelCompst.html
XSPEC version
CIAO 4.15 comes with support for version 12.12.1c of the XSPEC models. This can be checked with the following:
% python -c 'from sherpa.astro import xspec; print(xspec.get_xsversion())' 12.12.1c
Bugs
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.