Last modified: December 2018

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

xszedge

Context: models

Synopsis

The XSPEC zedge model: absorption edge.

Syntax

xszedge

The xszedge model is a multiplivative model component.

Description

The model is described at [1] .


Example

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

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

mdl
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   mdl.edgeE    thawed            7            0          100        keV
   mdl.MaxTau   thawed            1            0            5           
   mdl.redshift frozen            0       -0.999           10           

ATTRIBUTES

The attributes for this object are:

edgeE

The threshold edge, in keV.

MaxTau

The absorption depth at the threshold.

redshift

The redshift of the edge.

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.

See Also

models
xsedge