The COMPTEL CDG spectrum is fit to power-law function, A x (E/E0)^-a, where A is the flux normalization, E is the photon energy, E0 is taken to be 5 MeV (the logarithmic-midpoint energy between 0.8 and 30 MeV) and a is the spectral index. The resulting differential photon spectrum from 800 keV to 30 MeV is well described by a photon spectral index of -2.4 ± 0.2 and a flux normalization of (1.05 ± 0.2) x 10^-4 photons/cm^2-s-sr-MeV at 5 MeV.
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Creation Date: Tue Nov 11, 1997