Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, Epiciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Parallel electron heating in the magnetospheric inflow region

Abstract : We analyzed 20 reconnection events observed by the Magnetosphere MultiScale mission, finding that in a subregion of the magnetospheric inflow, the electron temperature parallel to the magnetic field (Te||) decreases toward the separatrix with increasing densities. Such Te|| variation is not consistent with the heating through the parallel potential mechanism for magnetospheric electrons. Associated with the change in Te||, low-energy gyrotropic magnetosheath-like electrons are observed. These electrons may come from the magnetosheath, penetrate to the magnetospheric side possibly due to waves in the lower hybrid frequency range, and do not experience as much energization as those from deeper in the magnetosphere. In addition, as Te|| decreases, the high-energy field-aligned phase-space densities decrease or fluctuate significantly over time. Wave-particle interaction might produce energy conversion and cause the high-energy phase-space density variations.
Document type :
Journal articles
Complete list of metadata
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Tuesday, May 24, 2022 - 3:36:45 PM
Last modification on : Monday, July 4, 2022 - 9:49:53 AM


Geophysical Research Letters -...
Publisher files allowed on an open archive






Shan Wang, Li-Jen Chen, Michael Hesse, Lynn B. Wilson, Naoki Bessho, et al.. Parallel electron heating in the magnetospheric inflow region. Geophysical Research Letters, 2017, 44, pp.4384-4392. ⟨10.1002/2017GL073404⟩. ⟨insu-03677008⟩



Record views


Files downloads