DOI: 10.1002/2016GL070195
Title: On the electron agyrotropy during rapid asymmetric magnetic island coalescence in presence of a guide field
Author: Cazzola E. ; Innocenti M.E. ; Goldman M.V. ; Newman D.L. ; Markidis S. ; Lapenta G.
Source Publication: Geophysical Research Letters
ISSN: 0094-8800
EISSN: 1944-8531
Publishing Year: 2016
Volume: 43, Issue: 15 pages begin: 7840
pages end: 7849
Language: 英语
Keyword: Asymmetric magnetic island coalescence with and without guide field
; Electron anisotropy and agyrotropy in asymmetric magnetic reconnection
; Fully kinetic simulation of asymmetric magnetic reconnection at the dayside magnetopause
Scopus Keyword: Electrons
; Magnetosphere
; Phase space methods
; Electron velocity
; Electron velocity distributions
; Guide field
; Magnetic island
; Magnetic reconnections
; Robust detection algorithms
; Separatrices
; Magnetism
; anisotropy
; coalescence
; electron
; island
; isotropy
; kinetic energy
; magnetic field
; magnetopause
; magnetosphere
English Abstract: We present an analysis of the properties of the electron velocity distribution during island coalescence in asymmetric reconnection with and without guide field. In a previous study, three main domains were identified, in the case without guide field, as X, D, and M regions featuring different reconnection evolutions. These regions are also identified here in the case with guide field. We study the departure from isotropic and gyrotropic behavior by means of different robust detection algorithms proposed in the literature. While in the case without guide field these metrics show an overall agreement, when the guide field is present, a discrepancy in the agyrotropy within some relevant regions is observed, such as at the separatrices and inside magnetic islands. Moreover, in light of the new observations from the Multiscale MagnetoSpheric mission, an analysis of the electron velocity phase-space in these domains is presented. ©2016. American Geophysical Union. All Rights Reserved. Related Link: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84981301325&doi=10.1002%2f2016GL070195&partnerID=40&md5=f970a28d598a1ec95dcfe42eeec7c59b
Citation statistics:
Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/9763
Appears in Collections: 科学计划与规划 气候变化与战略
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Affiliation: Department of Mathematics, KULeuven University, Leuven, Belgium
Recommended Citation:
Cazzola E.,Innocenti M.E.,Goldman M.V.,et al. On the electron agyrotropy during rapid asymmetric magnetic island coalescence in presence of a guide field[J]. Geophysical Research Letters,2016-01-01,43(15).