Synopsis
The XSPEC expdec model: exponential decay.
Syntax
xsexpdec The xsexpdec model is an additive model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xsexpdec", "mdl")
>>> print(mdl)Create a component of the xsexpdec model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.factor thawed 1 0 100 mdl.norm thawed 1 0 1e+24
ATTRIBUTES
The attributes for this object are:
| Attribute | Definition |
|---|---|
| factor | The exponential factor. |
| norm | The normalization of the model. |
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelExpdec.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.