The file will contain a header and a number of BINTABLE extensions.
The main header will include the following information :
- MODLNAME - the name of the model (string of 12 characters max).
- MODLUNIT - the units for the model (string of 12 characters max).
- REDSHIFT - whether redshift is to be a parameter (logical).
- ESCALE - whether escale is to be a parameter (logical).
- ADDMODEL - whether this is an additive model (logical).
- LOELIMIT - the model value for energies below those tabulated.
- HIELIMIT - the model value for energies above those tabulated.
It should also include the standard OGIP keywords :
HDUCLASS 'OGIP'
HDUCLAS1 'XSPEC TABLE MODEL'
HDUVERS '1.2.0'
If there are multiple model spectra for each parameter grid point then
the following keywords should also be used :
- NXFLTEXP - the number of model spectra for each parameter grid
- XFXPnnnn - the expression to use to determine which model
spectrum at each parameter grid point to use. XFXP0001 for the
first, XFXP0002 for the second, and so on.
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Last modified: Thursday, 17-Aug-2023 17:34:30 EDT
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