xsmkcflow

Context: models

Synopsis

The XSPEC mkcflow model: cooling flow, mekal.

Syntax

xsmkcflow

The xsmkcflow model is an additive model component.

Description

The model is described at [1] . The results of this model depend on the cosmology settings set with set_xscosmo .

Example

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

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

mdl
   Param        Type          Value          Min          Max      Units
   -----        ----          -----          ---          ---      -----
   mdl.lowT     thawed          0.1       0.0808         79.9        keV
   mdl.highT    thawed            4       0.0808         79.9        keV
   mdl.Abundanc thawed            1            0            5           
   mdl.redshift frozen            0       -0.999           10           
   mdl.switch   frozen            1            0            2           
   mdl.norm     thawed            1            0        1e+24

ATTRIBUTES

The attributes for this object are:

lowT

The minimum temperature, in keV.

highT

The maxmimum temperature, in keV.

Abundanc

The abundance relative to Solar, as set by set_xsabund .

redshift

The redshift of the plasma.

switch

If 0, the mekal code is run to evaluate the model; if 1 then interpolation of the mekal data is used; if 2 then interpolation of APEC data is used. See [1] for more details. This parameter can not be thawed.

norm

The mass accretion rate (solar mass per year).

References

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

XSPEC version

CIAO 4.11 comes with support for version 12.10.0e of the XSPEC models. This can be checked with the following:

% python -c 'from sherpa.astro import xspec;
print(xspec.get_xsversion())'
12.10.0e

Bugs

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