Cosmic-ray Intensity Enhancements along Heliospheric Current Sheets
July 22, 2019
July 02, 2021
Heliospheric current sheets (HCSs) allow fast particle drifts along the HCS, which may result in intensity enhancements of cosmic rays if the HCS happens to connect to a region of higher cosmic-ray density, and the direction of drift is favourable. We report on simple numerical studies using stochastic integration method to obtain the density and anisotropy of high-rigidity (10-50 GV range) around the HCS in various magnetic structures. We apply a backward-tracing scheme to follow the trajectories of an ensemble of pseudo-particles in the heliospheric magnetic field (HMF). THe model HMF also includes a random component to account for scattering. Preliminary results will be presented for Forbush decreases.
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