XScompTT

class sherpa.astro.xspec.XScompTT(name='comptt')[source]

Bases: sherpa.astro.xspec.XSAdditiveModel

The XSPEC compTT model: Comptonization, Titarchuk.

The model is described at [1].

redshift

The redshift of the source.

T0

The input soft photon (Wien) temperature in keV.

kT

The plasma temperature, in keV.

taup

The plasma optical depth.

approx

The geometry setting: a value less than or equal to 1 is a disk, above 1 it is a sphere. See [1] for more details on how this parameter affects the model. It must remain frozen.

norm

The normalization of the model.

References

[1](1, 2) https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelComptt.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

thawedparhardmaxes
thawedparhardmins
thawedparmaxes
thawedparmins
thawedpars
version_enabled = True

Methods Documentation

apply(outer, *otherargs, **otherkwargs)
calc(pars, xlo, *args, **kwargs)
get_center()
guess(dep, *args, **kwargs)

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.

regrid(*arrays)
reset()
set_center(*args, **kwargs)
startup()

Called before a model may be evaluated multiple times.

See also

teardown()

teardown()

Called after a model may be evaluated multiple times.

See also

setup()