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The HEASARC and NuSTAR teams are greatly saddened by the sudden passing of Katja Pottschmidt. Most recently Katja was the lead scientist for the NuSTAR Guest Observer Facility (GOF), a role she had supported for many years. During her science career she worked on many other high energy astrophysics missions and played an integral role in advancing our knowledge of the universe. She was a wonderful colleague and friend and will be keenly missed by all who knew her.
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etable: exponential tabular model
An exponential table model. The filename to be used should be given immediately after etable in the model command. For example:
XSPEC12> model etable{mymod.mod}
uses mymod.mod as the input for the model. XSPEC will multiply the contents of the model by -1 then take the exponential i.e. this model is for calculating absorption functions. For specifications of the table model file, see the OGIP memo 92-009 on the FITS file format for table model files (available from https://heasarc.gsfc.nasa.gov/docs/heasarc/ofwg/docs/summary/ogip_92_009_summary.html).
The model value is assumed unity outside the tabulated energies unless
the keywords LOELIMIT and HIELIMIT are given in the primary extension
of the FITS file. In the latter case the value given in LOELIMIT will
be used for energies below those tabulated and HIELIMIT for energies
above those tabulated.