XSbapec

class sherpa.astro.xspec.XSbapec(name='bapec')

Bases: sherpa.astro.xspec.XSAdditiveModel

The XSPEC bapec model: velocity broadened APEC thermal plasma model.

The model is described at [1]. The set_xsabund and get_xsabund functions change and return the current settings for the relative abundances of the metals. The set_xsxset and get_xsxset functions are used to set and query the XSPEC XSET parameters, in particular the keywords “APECROOT” and “APEC_TRACE_ABUND”.

kT

The temperature of the plasma, in keV.

Abundanc

The metal abundance of the plasma, as defined by the set_xsabund function and the “APEC_TRACE_ABUND” xset keyword.

Redshift

The redshift of the plasma.

Velocity

The gaussian sigma of the velocity broadening, in km/s.

norm

The normalization of the model: see [1] for an explanation of the units.

See also

XSapec, XSbtapec, XSbvapec, XSbvvapec, XSvapec, XSvvapec

References

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