skip to main content

SciTech ConnectSciTech Connect

Title: Double-reconnected magnetic structures driven by Kelvin-Helmholtz vortices at the Earth's magnetosphere

In an almost collisionless magnetohydrodynamic plasma in a relatively strong magnetic field, stresses can be conveyed far from the region where they are exerted, e.g., through the propagation of Alfvèn waves. The forced dynamics of line-tied magnetic structures in solar and stellar coronae (see, e.g., A. F. Rappazzo and E. N. Parker, Astrophys. J. 773, L2 (2013) and references therein) is a paradigmatic case. Here, we investigate how this action at a distance develops from the equatorial region of the Kelvin-Helmholtz unstable flanks of the Earth's magnetosphere leading to the onset, at mid latitude in both hemispheres, of correlated double magnetic field line reconnection events that can allow the solar wind plasma to enter the Earth's magnetosphere.
Authors:
; ;  [1] ;  [2]
  1. Physics Department, University of Pisa, 56127 Pisa (Italy)
  2. Aix-Marseille University, CNRS, PIIM UMR 7345, 13397 Marseille (France)
Publication Date:
OSTI Identifier:
22408190
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ALFVEN WAVES; EARTH MAGNETOSPHERE; HELMHOLTZ INSTABILITY; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA; SOLAR WIND; STELLAR CORONAE; VORTICES; WAVE PROPAGATION