A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Transport of solar electrons in the turbulent interplanetary magnetic field
Tekijät: Ablassmayer J, Tautz RC, Dresing N
Kustantaja: AMER INST PHYSICS
Julkaisuvuosi: 2016
Journal: Physics of Plasmas
Tietokannassa oleva lehden nimi: PHYSICS OF PLASMAS
Lehden akronyymi: PHYS PLASMAS
Artikkelin numero: ARTN 012901
Vuosikerta: 23
Numero: 1
Sivujen määrä: 9
ISSN: 1070-664X
DOI: https://doi.org/10.1063/1.4939023
Tiivistelmä
The turbulent transport of solar energetic electrons in the interplanetary magnetic field is investigated by means of a test-particle Monte-Carlo simulation. The magnetic fields are modeled as a combination of the Parker field and a turbulent component. In combination with the direct calculation of diffusion coefficients via the mean-square displacements, this approach allows one to analyze the effect of the initial ballistic transport phase. In that sense, the model complements the main other approach in which a transport equation is solved. The major advancement is that, by recording the flux of particles arriving at virtual detectors, intensity and anisotropy-time profiles can be obtained. Observational indications for a longitudinal asymmetry can thus be explained by tracing the diffusive spread of the particle distribution. The approach may be of future help for the systematic interpretation of observations for instance by the solar terrestrial relations observatory (STEREO) and advanced composition explorer (ACE) spacecrafts. (C) 2016 AIP Publishing LLC.
The turbulent transport of solar energetic electrons in the interplanetary magnetic field is investigated by means of a test-particle Monte-Carlo simulation. The magnetic fields are modeled as a combination of the Parker field and a turbulent component. In combination with the direct calculation of diffusion coefficients via the mean-square displacements, this approach allows one to analyze the effect of the initial ballistic transport phase. In that sense, the model complements the main other approach in which a transport equation is solved. The major advancement is that, by recording the flux of particles arriving at virtual detectors, intensity and anisotropy-time profiles can be obtained. Observational indications for a longitudinal asymmetry can thus be explained by tracing the diffusive spread of the particle distribution. The approach may be of future help for the systematic interpretation of observations for instance by the solar terrestrial relations observatory (STEREO) and advanced composition explorer (ACE) spacecrafts. (C) 2016 AIP Publishing LLC.
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