We report the observation of new properties of primary cosmic rays He, C, and O measured in the rigidity (momentum/charge) range 2 GV to 3 TV with 90 × 10^6 helium, 8.4 × 10^6 carbon, and 7.0 × 10^6 oxygen nuclei collected by the Alpha Magnetic Spectrometer (AMS) during the first five years of operation. Above 60 GV, these three spectra have identical rigidity dependence. They all deviate from a single power law above 200 GV and harden in an identical way.
Observation of the Identical Rigidity Dependence of He, C, and O Cosmic Rays at High Rigidities by the Alpha Magnetic Spectrometer on the International Space Station
Ambrosi, G.;Battiston, R.;Bertucci, B.;Burger, J.;Burger, W. J.;MATEO DELGADO, CARMEN;Donnini, F.;Duranti, M.;Fiandrini, E.;GALLUCCI, LUIGI GIUSEPPE;FRASCARELLI GERVASI, Maria Antonella;Graziani, M.;Ionica, M.;Oliva, A.;Pauluzzi, M.;SCHWERING, GEORG;Tomassetti, N.;Vagelli, V.;Wang, X.;ZHANG, CHAO;Zuccon, P.
2017
Abstract
We report the observation of new properties of primary cosmic rays He, C, and O measured in the rigidity (momentum/charge) range 2 GV to 3 TV with 90 × 10^6 helium, 8.4 × 10^6 carbon, and 7.0 × 10^6 oxygen nuclei collected by the Alpha Magnetic Spectrometer (AMS) during the first five years of operation. Above 60 GV, these three spectra have identical rigidity dependence. They all deviate from a single power law above 200 GV and harden in an identical way.File in questo prodotto:
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