Synopsis
The XSPEC lsmooth convolution model: lorentzian smoothing
Syntax
xslsmooth The xslsmooth model is a convolution model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xslsmooth", "mdl") >>> print(mdl)
Create a component of the xslsmooth model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.Sig_6keV thawed 1 0 20 keV mdl.Index frozen 0 -1 1
ATTRIBUTES
The attributes for this object are:
Attribute | Definition |
---|---|
Sig_6keV | lorentzian sigma at 6 keV |
Index | power of energy for sigma variation |
Notes
Unlike XSPEC, the convolution model is applied directly to the model, or models, rather than using the multiplication symbol.
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelLsmooth.html
Changes in CIAO
Changed in CIAO 4.14
The XSPEC model parameter was renamed from Sig@6keV to Sig_6keV so this is now the name of the parameter. The old name (SigAt6keV) can still be used but will be removed in a future release.
Added in CIAO 4.13
XSPEC version
CIAO 4.16 comes with support for version 12.13.1e of the XSPEC models. This can be checked with the following:
% python -c 'from sherpa.astro import xspec; print(xspec.get_xsversion())' 12.13.1e
Bugs
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.
See Also
- models
- xsgsmooth