XSgnei¶

class sherpa.astro.xspec.XSgnei(name='gnei')[source]¶

Bases: sherpa.astro.xspec.XSAdditiveModel

The XSPEC gnei model: collisional plasma, non-equilibrium, temperature evolution.

The model is described at [1]. The set_xsxset and get_xsxset functions are used to set and query the XSPEC XSET parameters, in particular the keyword “NEIVERS”.

Note

Deprecated in Sherpa 4.10.0

The kT_ave parameter has been renamed meanKT to match the XSPEC definition. The name kT_ave can still be used to access the parameter, but this name will be removed in a future release.

kT¶: The temperature of the plasma, in keV.

Abundanc¶: The metal abundance of the plasma, as defined by the set_xsabund function.

Tau¶: The ionization timescale in units of s/cm^3.

meankT¶: The ionization timescale averaged plasma temperature in keV.

redshift¶: The redshift of the plasma.

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

References

[1]	(1, 2) https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelGnei.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)
`reset`()
`set_center`(\args, \\*kwargs)
`startup`()
`teardown`()

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)¶

reset()¶

set_center(*args, **kwargs)¶

startup()¶

teardown()¶