Аннотация:Measurements of 5-100 MeV gamma-ray emission of the Crab Nebula with the balloon-borne Natalya-1 gamma-ray telescope yield differential intensities Ig=[21+-3, 1.0(+0.1,-0.2)]x10-6 photon cm-2 s-1 MeV-1 for Eg=5-20, 20-100 MeV, respectively. These values, based on analysis of about 3700 gamma-ray events, are in good accord with a spectral index
alpha= -2.2.