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ENERGIES extension

There will be a BINTABLE extension called ENERGIES containing the energy bins. The columns ENERG_LO and ENERG_HI comprise the lower and upper energy of each spectral bin. Note that the bins must be contiguous (ie energ_hi(i) = energ_lo(i+1)).

This extension should also include the standard OGIP keywords :


HDUCLASS 		 'OGIP'           

HDUCLAS1 'XSPEC TABLE MODEL'
HDUCLAS2 'ENERGIES'
HDUVERS '1.0.0'


next up previous
Next: SPECTRA extension Up: The FITS file format Previous: PARAMETERS extension
Keith Arnaud
2005-05-10