The XSPEC uvred model: interstellar extinction, Seaton Law.
xsuvred The xsuvred model is a multiplicative model component.
The model is described at  .
Deprecated in Sherpa 4.10.0
The EBV parameter has been renamed E_BmV to match the XSPEC definition. The name EBV can still be used to access the parameter, but this name will be removed in a future release.
>>> create_model_component("xsuvred", "mdl") >>> print(mdl)
Create a component of the xsuvred model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.E_BmV thawed 0.05 0 10
The attribute for this object is:
The value of E(B-v) for the line of sight to the source.
-  https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelUvred.html
CIAO 4.12 comes with support for version 12.10.1n of the XSPEC models. This can be checked with the following:
% python -c 'from sherpa.astro import xspec; print(xspec.get_xsversion())' 12.10.1n
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.