Simulations of electron energization and injection by BBFs using high-resolution LFM MHD fields

We study electron injection and energization by bursty bulk flows (BBFs), by tracing electron trajectories using magnetohydrodynamic (MHD) field output from the Lyon-Fedder-Mobarry (LFM) code. The LFM MHD simulations were performed using idealized solar wind conditions to produce BBFs. We show that BBFs can inject energetic electrons of few to 100 keV from the magnetotatail beyond -24 R-E to inward of geosynchronous, while accelerating them in the process. We also show the dependence of energization and injection on the initial relative position of the electrons to the magnetic field structure of the BBF, the initial pitch angle, and the initial energy. In addition, we have shown that the process can be nonadiabatic with violation of the first adiabatic invariant (mu). Further, we discuss the mechanism of energization and injection in order to give generalized insight into the process.

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Author Eshetu, W. W.
Lyon, J. G.
Hudson, Mary K.
Wiltberger, Michael
Publisher UCAR/NCAR - Library
Publication Date 2019-02-01T00:00:00
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Topic Category geoscientificInformation
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Metadata Date 2025-07-11T19:31:14.537228
Metadata Record Identifier edu.ucar.opensky::articles:22451
Metadata Language eng; USA
Suggested Citation Eshetu, W. W., Lyon, J. G., Hudson, Mary K., Wiltberger, Michael. (2019). Simulations of electron energization and injection by BBFs using high-resolution LFM MHD fields. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7k64n4n. Accessed 04 August 2025.

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