Spacecraft Observations and Theoretical Understanding of Slow Electron Holes

Spacecraft Observations and Theoretical Understanding of Slow Electron Holes

We present Magnetospheric Multiscale observations showing large numbers of slow electron holes with speeds clustered near the local minimum of double-humped velocity distribution functions of background ions. Theoretical computations show that slow electron holes can avoid the acceleration that othe...

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Bibliographic Details
Main Authors: Kamaletdinov, Sergey R, Hutchinson, Ian H, Vasko, Ivan Y, Artemyev, Anton V, Lotekar, Ajay, Mozer, Forrest
Other Authors: Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Format: Article
Language:English
Published: American Physical Society (APS) 2023
Online Access:https://hdl.handle.net/1721.1/147194
Description
Summary:We present Magnetospheric Multiscale observations showing large numbers of slow electron holes with speeds clustered near the local minimum of double-humped velocity distribution functions of background ions. Theoretical computations show that slow electron holes can avoid the acceleration that otherwise prevents their remaining slow only under these same circumstances. Although the origin of the slow electron holes is still elusive, the agreement between observation and theory about the conditions for their existence is remarkable.

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