Last modified: December 2020

URL: https://cxc.cfa.harvard.edu/sherpa/ahelp/xskdblur2.html
AHELP for CIAO 4.13 Sherpa v1

xskdblur2

Context: models

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

Changes in CIAO

Added in CIAO 4.13

XSPEC version

CIAO 4.13 comes with support for version 12.10.1s of the XSPEC models. This can be checked with the following:

% python -c 'from sherpa.astro import xspec;
print(xspec.get_xsversion())'
12.10.1s

Bugs

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

See Also

models
xskdblur, xslaor2