Last modified: December 2018

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

xszvfeabs

Context: models

Synopsis

The XSPEC zvfeabs model: photoelectric absorption with free Fe edge energy.

Syntax

xszvfeabs

The xszvfeabs model is a multiplivative model component.

Description

The model is described at [1] .


Example

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

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

mdl
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   mdl.nH       thawed            1            0       100000 10^22 atoms / cm^2
   mdl.metals   thawed            1            0          100           
   mdl.FEabun   thawed            1            0          100           
   mdl.FEKedge  thawed         7.11            7          9.5        keV
   mdl.redshift frozen            0       -0.999           10           

ATTRIBUTES

The attributes for this object are:

nH

The equivalent hydrogen column (in units of 10^22 atoms/cm^2).

metals

The abundance relative to solar.

FEabun

The iron abundance relative to solar.

FEKedge

The Fe K edge energy, in keV.

redshift

The redshift of the absorber.

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.