An exponential table model. The filename to be used should be given immediately after etable in the model command. For example:
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 on the WWW or by anonymous ftp from ftp://legacy.gsfc.nasa.gov/caldb/docs/memos.).