2021
DOI: 10.48550/arxiv.2105.05397
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Charged particle scattering in dipolarized magnetotail

A. S. Lukin,
A. V. Artemyev,
A. A. Petrukovich
et al.

Abstract: The Earth's magnetotail is characterized by stretched magnetic field lines. Energetic particles are effectively scattered due to the field-line curvature, which then leads to isotropization of energetic particle distributions and particle precipitation to the Earth's atmosphere. Measurements of these precipitation at low-altitude spacecraft are thus often used to remotely probe the magnetotail current sheet configuration. This configuration may include spatially localized maxima of the curvature radius at equa… Show more

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“…This flux increase is also associated with a high ratio j loss /j trap ∼ 1 showing strong energy dispersion: larger energies with j loss /j trap ∼ 1 are closer to the Earth (see Figures 12c and 12d). This pattern most likely corresponds to the electron isotropic boundary (Imhof et al, 1979;Sergeev et al, 2012;Yahnin et al, 1997), that is, energetic electron scattering in the current sheet due to the magnetic field line curvature (Birmingham, 1984;Büchner & Zelenyi, 1989;Lukin, Artemyev, Petrukovich, & Zhang, 2021;Young et al, 2002). The curvature scattering efficiency depends on energy and the equatorial magnetic field curvature radius and intensity.…”
Section: ∕3mentioning
confidence: 97%
“…This flux increase is also associated with a high ratio j loss /j trap ∼ 1 showing strong energy dispersion: larger energies with j loss /j trap ∼ 1 are closer to the Earth (see Figures 12c and 12d). This pattern most likely corresponds to the electron isotropic boundary (Imhof et al, 1979;Sergeev et al, 2012;Yahnin et al, 1997), that is, energetic electron scattering in the current sheet due to the magnetic field line curvature (Birmingham, 1984;Büchner & Zelenyi, 1989;Lukin, Artemyev, Petrukovich, & Zhang, 2021;Young et al, 2002). The curvature scattering efficiency depends on energy and the equatorial magnetic field curvature radius and intensity.…”
Section: ∕3mentioning
confidence: 97%