Articles | Volume 35, issue 1
https://doi.org/10.5194/angeo-35-11-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-35-11-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Regular paper
| 
03 Jan 2017
Regular paper |
| 03 Jan 2017
On the response of quasi-adiabatic particles to magnetotail reconfigurations
Dominique C. Delcourt
CORRESPONDING AUTHOR
LPP, Ecole Polytechnique-CNRS-UPMC, Paris, France
Helmi V. Malova
Space Research Institute, Russian Academy of Sciences, Moscow, Russia
Lev M. Zelenyi
Space Research Institute, Russian Academy of Sciences, Moscow, Russia
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D. C. Delcourt
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Short summary
In a magnetic field reversal, the guiding center may not be valid due to large variation of the magnetic field on the length scale of the particle gyro-radius. Although they do not execute regular helical motion and temporarily meander inside the field reversal, quasi-adiabatic particles exit this reversal with a magnetic moment nearly identical to that at entry. We show that this behavior, which is a steady-state concept, can persist during dipolarization despite the induced electric field.
In a magnetic field reversal, the guiding center may not be valid due to large variation of the...
