Electro Acceleration in a Geomagnetic Field Line Resonance

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A hybrid MHD kinetic electron model in dipolar coordinates is used to sim- ulate the upward current region of a geomagnetic Field Line Resonance (FLR) system for a realistic ambient electron temperatures of a keV. It is found that mirror force e ects result in potential drops su#14;cient to accelerate electrons to energies in excess of a keV in support of eld aligned currents on the or- der of 0.5 #22;µA/m2. The wave energy dissipated in this acceleration would com- pletely damp an undriven FLR with an equatorial width of 0.5 RE within two resonance cycles.

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Johnson, Peter Damiano and J.R. August 17, 2012.

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Description

A hybrid MHD kinetic electron model in dipolar coordinates is used to sim- ulate the upward current region of a geomagnetic Field Line Resonance (FLR) system for a realistic ambient electron temperatures of a keV. It is found that mirror force e ects result in potential drops su#14;cient to accelerate electrons to energies in excess of a keV in support of eld aligned currents on the or- der of 0.5 #22;µA/m2. The wave energy dissipated in this acceleration would com- pletely damp an undriven FLR with an equatorial width of 0.5 RE within two resonance cycles.

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  • Geophysical Research Letters (June 2011)

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  • Report No.: PPPL-4660
  • Grant Number: DE-ACO2-09CH11466
  • DOI: 10.2172/1062556 | External Link
  • Office of Scientific & Technical Information Report Number: 1062556
  • Archival Resource Key: ark:/67531/metadc828536

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Creation Date

  • August 17, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

Description Last Updated

  • July 18, 2016, 5:24 p.m.

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Johnson, Peter Damiano and J.R. Electro Acceleration in a Geomagnetic Field Line Resonance, report, August 17, 2012; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc828536/: accessed August 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.