Synopsis
The XSPEC gaussian model: gaussian line profile.
Syntax
xsgaussian The xsgaussian model is an additive model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xsgaussian", "mdl") >>> print(mdl)
Create a component of the xsgaussian model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.LineE thawed 6.5 0 1e+06 keV mdl.Sigma thawed 0.1 0 20 keV mdl.norm thawed 1 0 1e+24
ATTRIBUTES
The attributes for this object are:
Attribute | Definition |
---|---|
LineE | The line energy, in keV. |
Sigma | The line width, in keV. A value of zero means a delta function. |
norm | The flux in the line, in units of photon/cm^2/s. |
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelGauss.html
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.