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Spectral index of solar cosmic-ray flux from the analysis of ground-level enhancements
(Elsevier, 2016)
In this work we analyze the ground-level enhancement of the cosmic-ray intensity due to solar energetic particles as observed on 29 September 1989, by using two pairs of standard and lead-free neutron monitors. This enables ...
New local interstellar spectra for protons, helium and carbon derived from PAMELA and Voyager 1 observations
(Springer, 2016)
With the cosmic ray observations made by the Voyager 1 spacecraft outside the dominant modulating influence of the heliosphere, the comparison of computed galactic spectra with experimental data at lower energies is finally ...
Non-axisymmetric perpendicular diffusion of charged particles and their transport across tangential magnetic discontinuities
(IOP Publishing, 2016)
We investigate the transport of charged particles across magnetic discontinuities, focusing specifically on stream interfaces associated with co-rotating interaction regions in the solar wind. We argue that the magnetic ...
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 ...
The effects of magnetic field modifications on the solar modulation of cosmic rays with a SDE-based model
(Elsevier, 2016)
A numerical model for the solar modulation of cosmic rays, based on the solution of a set of stochastic differential equations (SDEs), is used to illustrate the effects of modifying the heliospheric magnetic field, ...
The energy range of drift effects in the solar modulation of cosmic ray electrons
(Elsevier, 2016)
A comprehensive three-dimensional modulation model is used to study the energy range of drift effects in the solar modulation of cosmic ray (galactic) electrons. Drift effects are defined as the difference between modulated ...