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    • Solar modulation of cosmic ray positrons in a very quiet heliosphere 

      Potgieter, Marius S.; Vos, Etienne E.; Bisschoff, Driaan; Raath, Jan-Louis; Boezio, Mirko (PoS, 2017)
      Since the beginning of the space exploration era, solar activity was observed at its lowest level during 2006 to 2009. During this period, the PAMELA space experiment observed spectra for galactic cosmic rays, specifically ...