load_xstable_model¶

sherpa.astro.ui.load_xstable_model(modelname, filename)¶

Load a XSPEC table model.

Create an additive (atable, 1) or multiplicative (mtable, 2) XSPEC table model component. These models may have multiple model parameters.

Parameters

modelname (str) – The identifier for this model component.
filename (str) – The name of the FITS file containing the data, which should match the XSPEC table model definition 3.

Raises

sherpa.utils.err.ImportErr – If XSPEC support is not enabled.

See also

load_conv: Load a 1D convolution model.
load_psf: Create a PSF model
load_template_model: Load a set of templates and use it as a model component.
load_table_model: Load tabular or image data and use it as a model component.
set_model: Set the source model expression for a data set.
set_full_model: Define the convolved model expression for a data set.

Notes

NASA’s HEASARC site contains a link to community-provided XSPEC table models 4.

References

1: http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/manual/XSmodelAtable.html
2: http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/manual/XSmodelMtable.html
3: http://heasarc.gsfc.nasa.gov/docs/heasarc/ofwg/docs/general/ogip_92_009/ogip_92_009.html
4: https://heasarc.gsfc.nasa.gov/xanadu/xspec/newmodels.html

Examples

Load in the XSPEC table model from the file ‘bbrefl_1xsolar.fits’ and create a model component labelled ‘xtbl’, which is then used in a source expression:

>>> load_xstable_model('xtbl', 'bbrefl_1xsolar.fits')
>>> set_source(xsphabs.gal * xtbl)
>>> print(xtbl)