Synopsis
A one-dimensional line-broadening profile.
Syntax
linebroad
Example
>>> create_model_component("linebroad", "mdl") >>> print(mdl)
Create a component of the linebroad model and display its default parameters. The output is:
mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.ampl thawed 1 0 3.40282e+38 mdl.rest thawed 1000 1.17549e-38 3.40282e+38 mdl.vsini thawed 1.17549e-38 1.17549e-38 3.40282e+38
ATTRIBUTES
The attributes for this object are:
Attribute | Definition |
---|---|
ampl | The amplitude of the line. |
rest | The rest wavelength. |
vsini | The rotation velocity (v sin(i)), in km/s. |
Notes
The model is:
f(lambda) = 2 * ampl * c * sqrt(x) / (pi * rest * vsini) x = 1 - ((lambda - rest) * c / (rest * vsini))^2
Bugs
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.