PoS - Proceedings of Science
Volume 358 - 36th International Cosmic Ray Conference (ICRC2019) - SH - Solar & Heliospheric
Cosmic-ray Intensity Enhancements along Heliospheric Current Sheets
J. Kota* and K. Munakata
Full text: pdf
Pre-published on: July 22, 2019
Published on: 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.
DOI: https://doi.org/10.22323/1.358.1097
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