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  The Effect of the Betatron Mechanism on the Dynamics of Superthermal Electron Fluxes within Dipolizations in the Magnetotail

Malykhin, A. Y., Grigorenko, E. E., Kronberg, E. A., & Daly, P. W. (2018). The Effect of the Betatron Mechanism on the Dynamics of Superthermal Electron Fluxes within Dipolizations in the Magnetotail. Geomagnetism and Aeronomy, 58(6), 744-752. doi:10.1134/S0016793218060099.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-E0DA-B Version Permalink: http://hdl.handle.net/21.11116/0000-0007-01B9-7
Genre: Journal Article

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 Creators:
Malykhin, A. Yu., Author
Grigorenko, E. E., Author
Kronberg, Elena A.1, Author              
Daly, Patrick W.1, Author              
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              

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 MPIS_GROUPS: Planetary Plasmas
 MPIS_PROJECTS: Cluster: RAPID
 Abstract: The dynamics of high-energy electron fluxes (with energies over 40 keV) is analyzed in 13 events of magnetic field dipolization observed by the Cluster satellites in the near-tail of the Earth magnetosphere. In all of the events, the observed energetic electron fluxes are enhanced simultaneously with initial dipolization. Good correlation (correlation coefficient >0.6) is observed between the dynamics of the energetic electron fluxes with energies up to 90 keV and the BZ component of the magnetic field. Electron fluxes with higher energies display a decline of correlation with the magnetic field. The increase in electron fluxes with energies up to 90 keV during dipolization development is shown to be mainly due to the mechanism of betatron acceleration. The dynamics of electron fluxes with higher energies is poorly described by the betatron scenario and requires consideration of other, probably nonadiabatic, mechanisms.

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Language(s): eng - English
 Dates: 2018-12-302018
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1134/S0016793218060099
 Degree: -

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Title: Geomagnetism and Aeronomy
Source Genre: Journal
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Affiliations:
Publ. Info: Washington [etc.] : American Geophysical Union
Pages: - Volume / Issue: 58 (6) Sequence Number: - Start / End Page: 744 - 752 Identifier: ISSN: 0016-7932
CoNE: https://pure.mpg.de/cone/journals/resource/110978977279196