Synopsis
The XSPEC kdblur2 convolution model: convolve with the laor2 model
Syntax
xskdblur2 The xskdblur2 model is a convolution model component.
Description
The model is described at [1] .
Example
>>> create_model_component("xskdblur2", "mdl")
>>> print(mdl)Create a component of the xskdblur2 model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.Index frozen 3 -10 10 mdl.Rin_G frozen 4.5 1.235 400 mdl.Rout_G frozen 100 1.235 400 mdl.Incl thawed 30 0 90 deg mdl.Rbreak frozen 20 1.235 400 mdl.Index1 frozen 3 -10 10
ATTRIBUTES
The attributes for this object are:
| Attribute | Definition |
|---|---|
| Index | The power law dependence of emissivity (scales as R^-Index). |
| Rin_G | The inner radius, in units of GM/c^2. |
| Rout_G | The outer radius, in units of GM/c^2. |
| Incl | The disk inclination angle, in degrees. A face-on disk has Incl=0. |
| Rbreak | The radius at which the emissivity power-law index changes. |
| Index1 | The emissivity power-law index for r>Rbreak. |
Notes
Unlike XSPEC, the convolution model is applied directly to the model, or models, rather than using the multiplication symbol.
References
- [1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelKdblur2.html
Changes in CIAO
Added in CIAO 4.13
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.