XSvtapec

class sherpa.astro.xspec.XSvtapec(name='vtapec')

Bases: sherpa.astro.xspec.XSAdditiveModel

The XSPEC vtapec model: APEC emission spectrum with separate continuum and line temperatures.

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 keywords “APECROOT”, “APECTHERMAL”, “APECVELOCITY”, “APECNOLINES”, and “APEC_TRACE_ABUND”.

kT

Continuum temperature, in keV.

kTi

Line temperature, in keV.

He, C, N, O, Ne, Mg, Al, Si, S, Ar, Ca, Fe, Ni

The abundance of the element in solar units. The trace element abundances are determined by the APEC_TRACE_ABUND xset keyword (the default is 1.0).

Redshift

The redshift of the plasma.

norm

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

See also

XSbvtapec, XStapec, XSvvtapec

Notes

This model is only available when used with XSPEC 12.9.1 or later.

References

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