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Perpendicular diffusion of solar energetic particles: model results and implications for electrons
(IOP Publishing, 2017)
The processes responsible for the effective longitudinal transport of solar energetic particles (SEPs) are still not completely understood. We address this issue by simulating SEP electron propagation using a spatially 2D ...
Cosmic-ray transport in heliospheric magnetic structures. II. Modeling particle transport through corotating interaction regions
(IOP, 2017)
The transport of cosmic rays (CRs) in the heliosphere is determined by the properties of the solar wind plasma. The heliospheric plasma environment has been probed by spacecraft for decades and provides a unique opportunity ...
New evidence for charge-sign-dependent modulation during the solar minimum of 2006 to 2009
(IOP Publishing, 2017)
The PAMELA space experiment, in orbit since 2006, has measured cosmic rays (CRs) through the most recent period of minimum solar activity with the magnetic field polarity as A < 0. During this entire time, galactic electrons ...
The heliospheric transport and modulation of multiple charged anomalous oxygen revisited
(EDP Sciences, 2010)
Context. Since the crossings of the solar wind termination shock by the Voyager 1 and 2 spacecraft, much speculation has surrounded the acceleration mechanism and region where the anomalous cosmic ray component is accelerated. ...
A numerical simulation of cosmic ray modulation near the heliopause. II. Some physical insights
(IOP Publishing, 2016)
Cosmic ray (CR) transport near the heliopause (HP) is studied using a hybrid transport model, with the parameters constrained by observations from the Voyager 1 spacecraft. We simulate the CR radial flux along different ...
A simplified ab initio cosmic-ray modulation model with simulated time dependence and predictive capability
(IOP Publishing, 2018)
A simplified ab initio approach is followed to model cosmic-ray proton modulation, using a steady-state three-dimensional stochastic solver of the Parker transport equation that simulates some effects of time dependence. ...
Evidence of energy and charge sign dependence of the recovery time for the 2006 December Forbush event measured by the PAMELA experiment
(IOP Publishing, 2018)
New results on the short-term galactic cosmic-ray (GCR) intensity variation (Forbish decrease) in 2006 December
measured by the PAMELA instrument are presented. Forbush decreases are sudden suppressions of the GCR
intensities, ...
A generalized two-component model of solar wind turbulence and ab initio diffusion mean-free paths and drift lengthscales of cosmic rays
(IOP Publishing, 2016)
We extend a two-component model for the evolution of fluctuations in the solar wind plasma so that it is fully three-dimensional (3D) and also coupled self-consistently to the large-scale magnetohydrodynamic equations ...
Origin of the differential fluxes of low-energy electrons in the inner heliosheath
(IOP, 2017)
The study addresses the question of the origin of low-energy electrons measured by Voyager 1 in the multi-keV
range in the inner heliosheath. It intends to demonstrate that the observed keV-fluxes of electrons are ...