Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Unique Properties of Daily Proton Fluxes up to 100 GV

Jul 7, 2022, 6:30 PM
Room 8 (Blu)

Room 8 (Blu)

Parallel Talk Astroparticle Physics and Cosmology Astroparticle Physics and Cosmology


cristina consolandi (university of hawaii)


The precision measurement of daily proton fluxes with AMS during ten years of operation in the rigidity interval from 1 to 100 GV is presented. The proton fluxes exhibit variations on multiple time scales. From 2014 to 2018, we observed recurrent flux variations with a period of 27 days. Shorter periods of 9 days and 13.5 days are observed in 2016. The strength of all three periodicities changes with time and rigidity. Unexpectedly, the strength of 9-day and 13.5-day periodicities increases with increasing rigidities up to ~10 GV and ~20 GV respectively. Then the strength of the periodicities decreases with increasing rigidity up to 100 GV.

In-person participation Yes

Primary author

cristina consolandi (university of hawaii)

Presentation materials