    The XSPEC agnsed model: AGN SED model

xsagnsed
The xsagnsed model is an additive model component.

The model is described at [1] .

>>> create_model_component("xsagnsed", "mdl")
>>> print(mdl)

Create a component of the xsagnsed model and display its default parameters. The output is:

mdl Param Type Value Min Max Units ----- ---- ----- --- --- ----- mdl.mass frozen 1e+07 1 1e+10 solar mdl.dist frozen 100 0.01 1e+09 Mpc mdl.logmdot thawed -1 -10 2 mdl.astar frozen 0 -1 0.998 mdl.cosi frozen 0.5 0.05 1 mdl.kTe_hot frozen 100 10 300 keV(_pl) mdl.kTe_warm thawed 0.2 0.1 0.5 keV(_sc) mdl.Gamma_hot thawed 1.7 1.3 3 (_calc) mdl.Gamma_warm thawed 2.7 2 10 (_disk) mdl.R_hot thawed 10 6 500 Rg mdl.R_warm thawed 20 6 500 Rg mdl.logrout frozen -1 -3 7 (_selfg) mdl.Htmax frozen 10 6 10 Rg mdl.reprocess frozen 1 0 1 0off/1on mdl.redshift frozen 0 0 1 mdl.norm thawed 1 0 1e+24

ATTRIBUTES

The attributes for this object are:

Attribute
Definition
mass
The black hole mass, in solar units.
dist
The comoving (proper) distance, in Mpc.
logmdot
log of mdot, where mdot = Mdot/Mdot_Edd and eta Mdot_Edd c^2 = L_Edd
astar
The black hole spin (dimensionless)
cosi
The cosine of the inclination angle i for the warm Comptonising component and the outer disc.
kTe_hot
The electron temperature for the hot Comptonisation component in keV. If negative then only the hot Comptonisation component is used.
kTe_warm
The electron temperature for the warm Comptonisation component in keV. If negative then only the warm Comptonisation component is used.
Gamma_hot
The spectral index of the hot Comptonisation component. If negative, the code will use the value calculated via eq.(2) of KD18 (see [1] ).
Gamma_warm
The spectral index of the warm Comptonisation component. If negative then only the outer disc component is used.
R_hot
The outer radius of the hot Comptonisation component in Rg.
R_warm
The outer radius of the warm Comptonisation component in Rg.
logrout
The log of the outer radius of the disc in units of Rg. If negative, the code will use the self gravity radius as calculated from Laor & Netzer (1989) (see [1] ).
Htmax
The upper limit of the scale height for the hot Comptonisation component in Rg. If smaller than R_hot, the hot Comptonisation region is a sphere of radius Htmax by keeping Ldiss_hot determined by R_hot via eq.(2) of KD18 (see [1] ).
reprocess
If this parameter is 0, reprocessing is not considered. If it is 1, reprocessing is included.
redshift
The redshift.
norm
The normalization of the model.

References

[1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelAgnsed.html

XSPEC version

CIAO 4.16 comes with support for version 12.13.1e of the XSPEC models. This can be checked with the following:

% python -c 'from sherpa.astro import xspec; print(xspec.get_xsversion())'12.13.1e

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

December 2023