Last modified: December 2018

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

xsdiskpbb

Context: models

Synopsis

The XSPEC diskpbb model: accretion disk, power-law dependence for T(r).

Syntax

xsdiskpbb

The xsdiskpbb model is an additive model component.

Description

The model is described at [1] .


Example

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

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

mdl
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   mdl.Tin      thawed            1          0.1           10        keV
   mdl.p        thawed         0.75          0.5            1           
   mdl.norm     thawed            1            0        1e+24           

ATTRIBUTES

The attributes for this object are:

Tin

The temperature at the inner disk radius, in keV.

p

The exponent of the radial dependence of the disk temperature.

norm

The normalization of the model: see [1] for details.

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
xsdiskbb, xsdiskpn