Last modified: December 2018

URL: http://cxc.harvard.edu/sherpa/ahelp/xsnotch.html
AHELP for CIAO 4.11 Sherpa v1

xsnotch

Context: models

Synopsis

The XSPEC notch model: absorption line, notch.

Syntax

xsnotch

The xsnotch model is a multiplivative model component.

Description

The model is described at [1] .


Example

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

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

mdl
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   mdl.LineE    thawed          3.5            0           20        keV
   mdl.Width    thawed            1            0           20        keV
   mdl.CvrFract frozen            1            0            1           

ATTRIBUTES

The attributes for this object are:

LineE

The line energy, in keV.

Width

The line width, in keV.

CvrFract

The covering fraction.

References

XSPEC version

CIAO 4.11 comes with support for version 12.10.0e of the XSPEC models. This can be checked with the following:

% python -c 'from sherpa.astro import xspec;
print(xspec.get_xsversion())'
12.10.0e

Bugs

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.