XSkerrd¶
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class
sherpa.astro.xspec.
XSkerrd
(name='kerrd')[source] [edit on github]¶ Bases:
sherpa.astro.xspec.XSAdditiveModel
The XSPEC kerrd model: optically thick accretion disk around a Kerr black hole.
The model is described at [1].
Note
Deprecated in Sherpa 4.10.0
The
TcolTeff
parameter has been renamedTcoloTeff
to match the XSPEC definition. The nameTcolTeff
can still be used to access the parameter, but this name will be removed in a future release.-
distance
¶ The distance, in units of kpc.
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M
¶ The mass of the central object, in solar masses.
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Mdot
¶ The mass accretion rate in units of 10^18 g/s.
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Incl
¶ The disk inclination angle, in degrees. A face-on disk has Incl=0.
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Rin
¶ The inner radius, in units of GM/c^2. The last stable orbit is 1.235.
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Rout
¶ The outer radius, in units of GM/c^2.
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norm
¶ The normalization of the model. It should be fixed to 1.
See also
References
[1] (1, 2) https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelKerrd.html Attributes Summary
thawedparhardmaxes
thawedparhardmins
thawedparmaxes
thawedparmins
thawedpars
version_enabled
Methods Summary
apply
(outer, *otherargs, **otherkwargs)calc
(pars, xlo, *args, **kwargs)get_center
()guess
(dep, *args, **kwargs)Set an initial guess for the parameter values. regrid
(*arrays)reset
()set_center
(*args, **kwargs)startup
()Called before a model may be evaluated multiple times. teardown
()Called after a model may be evaluated multiple times. Attributes Documentation
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thawedparhardmaxes
¶
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thawedparhardmins
¶
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thawedparmaxes
¶
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thawedparmins
¶
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thawedpars
¶
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version_enabled
= True¶
Methods Documentation
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apply
(outer, *otherargs, **otherkwargs) [edit on github]¶
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calc
(pars, xlo, *args, **kwargs) [edit on github]¶
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get_center
() [edit on github]¶
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guess
(dep, *args, **kwargs) [edit on github]¶ Set an initial guess for the parameter values.
Attempt to set the parameter values, and ranges, for the model to match the data values. This is intended as a rough guess, so it is expected that the model is only evaluated a small number of times, if at all.
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regrid
(*arrays) [edit on github]¶
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reset
() [edit on github]¶
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set_center
(*args, **kwargs) [edit on github]¶
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startup
() [edit on github]¶ Called before a model may be evaluated multiple times.
See also
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teardown
() [edit on github]¶ Called after a model may be evaluated multiple times.
See also
setup()
-