ИСТИНА

Some new approximations of the energy spectra of the primary protons and helium nuclei are estimated in the energy interval of 10**2 − 10**7 GeV on the base of precision data of the AMS02 experiment and simulations of the primary particle spectra in terms of acceleration in supernova remnants model. These approximations coincide well with results of many measurements and thus support this acceleration model. Besides, these approximations may be used in many physical applications. The fractions of helium nuclei towards protons are also estimated. Some uncertainties of the primary particle spectra suggested before are also estimated by comparing with our approximations.