xsconstant

Context: models

Synopsis

The XSPEC constant model: energy-independent factor.

Syntax

xsconstant

The xsconstant model is a multiplicative model component.

Description

The model is described at [1] .

Example

>>> create_model_component("xsconstant", "mdl")
>>> print(mdl)

Create a component of the xsconstant model and display its default parameters. The output is:

mdl
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   mdl.factor   thawed            1            0        1e+10

ATTRIBUTES

The attribute for this object is:

Attribute	Definition
factor	The value of the model.

References

[1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelConstant.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.