Properties of Forbush Decreases with AMS-02 daily Proton, Helium and Electron data

Authors: SIQI WANG (University of Hawaii at Manoa), Veronica Bindi (University of Hawaii at Manoa), Claudio Corti (University of Hawaii at Manoa), Cristina Consolandi (University of Hawaii at Manoa), Nikolay Nikonov (University of Hawaii at Manoa), Holthaus Alexandria (University of Hawaii at Manoa)

A Forbush decrease (FD) is a sudden reduction of Galactic Cosmic Rays (GCRs), due to disturbances in the interplanetary magnetic field, usually caused by intense transient solar activities such as Interplanetary Coronal Mass Ejections (ICMEs) and Corotating Interaction Regions (CIRs). With the high-precision daily cosmic ray data measured by the Alpha Magnetic Spectrometer (AMS-02) on the International Space Station, more than one hundred FD events were identified. With 8.5 years of proton and helium data as well as 11 years of electron data, the properties of a selected set of FD events were studied. With fine rigidity bins ranging from 1 GV to 100 GV for protons and helium, and electron flux data ranging from 1.00 to 41.9 GV, the rigidity dependence during FDs were studied and compared.