Synopsis
A one-dimensional Blackbody model (frequency).
Syntax
bbodyfreq
Description
This model can be used when the independent axis is in frequency space.
Example
>>> create_model_component("bbodyfreq", "mdl") >>> print(mdl)
Create a component of the bbodyfreq model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.T thawed 1e+06 1000 1e+10 mdl.ampl thawed 1 0 3.40282e+38
ATTRIBUTES
The attributes for this object are:
Attribute | Definition |
---|---|
T | The temperature if the blackbody, in Kelvin. |
ampl | The amplitude of the blackbody component. |
Notes
The blackbody emission is calculated as a function of frequency (v) using Wien's law (hv >> kT):
f(v) = ampl * 2 * h * v^3 * exp(-h * v / (k * T)) / c^2
where T is the blackbody temperature in Kelvin, h is Planck's constant, k is Boltzmann's constant, and c the speed of light.
Bugs
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.
See Also
- models
- bbody