HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
atable: tabulated additive model
An additive table model component. The filename to be used must be
given immediately after atable in the model command. For example:
XSPEC12> model atable{mymod.mod}
uses mymod.mod as the input for the model. For
specifications of the table model file, see the OGIP memo 92-009 on
the FITS file format for table model files (available at
https://heasarc.gsfc.nasa.gov/docs/heasarc/ofwg/docs/summary/ogip_92_009_summary.html.
Example additive table model files are mekal.mod and raysmith.mod in
$HEADAS/../spectral/modelData and testpo.mod in
$HEADAS/../spectral/session.
Any number of tabulated model components (additive, multiplicative or
exponential) may be used simultaneously.
The model value is assumed zero 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.
HEASARC Home |
Observatories |
Archive |
Calibration |
Software |
Tools |
Students/Teachers/Public
Last modified: Friday, 23-Aug-2024 13:20:40 EDT
HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
|
Xspec Home Page
