skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: On Multiple Hall-Like Electron Currents and Tripolar Guide Magnetic Field Perturbations During Kelvin-Helmholtz Waves

Journal Article · · Journal of Geophysical Research. Space Physics
DOI:https://doi.org/10.1002/2017ja024155· OSTI ID:1565634
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [3]; ORCiD logo [5]; ORCiD logo [2]; ORCiD logo [6]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Austrian Academy of Sciences (Austria)
  3. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  4. Denali Scientific, LLC, Healy, AK (United States)
  5. Univ. of California, Los Angeles, CA (United States)
  6. Southwest Research Inst., San Antonio, TX (United States)

Abstract Two magnetopause current sheet crossings with tripolar guide magnetic field signatures were observed by multiple Magnetosphere Multiscale (MMS) spacecraft during Kelvin‐Helmholtz wave activity. The two out‐of‐plane magnetic field depressions of the tripolar guide magnetic field are largely supported by the observed in‐plane electron currents, which are reminiscent of two clockwise Hall current loop systems. A comparison with a three‐dimensional kinetic simulation of Kelvin‐Helmholtz waves and vortex‐induced reconnection suggests that MMS likely encountered the two Hall magnetic field depressions on either side of a magnetic reconnection X‐line. Moreover, MMS observed an out‐of‐plane current reversal and a corresponding in‐plane magnetic field rotation at the center of one of the current sheets, suggesting the presence of two adjacent flux ropes. The region inside one of the ion‐scale flux ropes was characterized by an observed decrease of the total magnetic field, a strong axial current, and significant enhancements of electron density and parallel electron temperature. The flux rope boundary was characterized by currents opposite this axial current, strong in‐plane and converging electric fields, parallel electric fields, and weak electron‐frame Joule dissipation. These return current region observations may reflect a need to support the axial current rather than representing local reconnection signatures in the absence of any exhausts.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
Sponsoring Organization:
USDOE Office of Science (SC); National Aeronautics and Space Administration (NASA)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1565634
Alternate ID(s):
OSTI ID: 1422425
Journal Information:
Journal of Geophysical Research. Space Physics, Vol. 123, Issue 2; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 9 works
Citation information provided by
Web of Science

References (58)

Asymmetry of the Ion Diffusion Region Hall Electric and Magnetic Fields during Guide Field Reconnection: Observations and Comparison with Simulations journal May 2010
Collisionless magnetic reconnection in the presence of a guide field journal August 2004
Transport of solar wind into Earth's magnetosphere through rolled-up Kelvin–Helmholtz vortices journal August 2004
Numerical study of explosive tearing mode instability in one-component plasmas journal January 1981
Crater FTEs: Simulation results and THEMIS observations journal January 2008
Local magnetic reconnection caused by vortices in the flow field journal August 1988
Generation of vortex-induced tearing mode instability at the magnetopause journal January 1990
Electron acceleration in three-dimensional magnetic reconnection with a guide field journal October 2015
Geotail observations of the Hall current system: Evidence of magnetic reconnection in the magnetotail journal November 2001
Electron acceleration from contracting magnetic islands during reconnection journal October 2006
Currents and associated electron scattering and bouncing near the diffusion region at Earth's magnetopause journal April 2016
MMS observations of large guide field symmetric reconnection between colliding reconnection jets at the center of a magnetic flux rope at the magnetopause: Large Guide Field Reconnection at Flux Rope Center journal June 2016
In situ detection of collisionless reconnection in the Earth's magnetotail journal July 2001
Turbulent mass transfer caused by vortex induced reconnection in collisionless magnetospheric plasmas journal November 2017
Coherent structures, intermittent turbulence, and dissipation in high-temperature plasmas journal January 2013
Magnetospheric Multiscale Observations of the Electron Diffusion Region of Large Guide Field Magnetic Reconnection journal July 2016
Observations of Hall Reconnection Physics Far Downstream of the X Line journal October 2016
Anomalous transport by magnetohydrodynamic Kelvin-Helmholtz instabilities in the solar wind-magnetosphere interaction journal January 1984
The onset of ion heating during magnetic reconnection with a strong guide field journal July 2014
Ion‐scale secondary flux ropes generated by magnetopause reconnection as resolved by MMS journal May 2016
Electron Physics of Asymmetric Magnetic Field Reconnection journal November 2010
Magnetospheric Multiscale observations of magnetic reconnection associated with Kelvin-Helmholtz waves: KH-Associated Magnetic Reconnection journal June 2016
Evidence of Diffusion Regions at a Subsolar Magnetopause Crossing journal June 2002
Electron dissipation in collisionless magnetic reconnection journal November 1998
A theory of magnetic flux transfer at the Earth's magnetopause journal February 1985
Magnetospheric Multiscale Overview and Science Objectives journal May 2015
Kinetic evidence of magnetic reconnection due to Kelvin-Helmholtz waves: RECONNECTION DUE TO KHW journal June 2016
Four-point Cluster application of magnetic field analysis tools: The Curlometer journal January 2002
Three-dimensional collisionless magnetic reconnection in the presence of a guide field journal January 2004
Signatures of collisionless magnetic reconnection journal January 2003
The FIELDS Instrument Suite on MMS: Scientific Objectives, Measurements, and Data Products journal November 2014
Magnetic structure of the reconnection layer and core field generation in plasmoids journal June 1999
The Magnetospheric Multiscale Magnetometers journal August 2014
GEM reconnection challenge: Implicit kinetic simulations with the physical mass ratio: GEM RECONNECTION CHALLENGE journal December 2002
Fast Plasma Investigation for Magnetospheric Multiscale journal March 2016
Geospace Environmental Modeling (GEM) Magnetic Reconnection Challenge journal March 2001
Ultrahigh performance three-dimensional electromagnetic relativistic kinetic plasma simulation journal May 2008
On the signatures of magnetic islands and multiple X-lines in the solar wind as observed by ARTEMIS and WIND journal April 2014
Magnetic reconnection at the dayside magnetopause: Advances with MMS: MAGNETOPAUSE RECONNECTION WITH MMS journal August 2016
Transition to whistler mediated magnetic reconnection journal January 1994
Structure of an MHD-scale Kelvin-Helmholtz vortex: Two-dimensional two-fluid simulations including finite electron inertial effects: THE STRUCTURE OF AN MHD-SCALE KH VORTEX journal September 2008
ON MULTIPLE RECONNECTION X -LINES AND TRIPOLAR PERTURBATIONS OF STRONG GUIDE MAGNETIC FIELDS journal May 2015
Subsolar magnetopause observation and kinetic simulation of a tripolar guide magnetic field perturbation consistent with a magnetic island journal April 2016
On the electron diffusion region in asymmetric reconnection with a guide magnetic field journal March 2016
Kelvin-Helmholtz instability at the magnetotail boundary: MHD simulation and comparison with Geotail observations journal September 2000
Plasma transport at the magnetospheric boundary due to reconnection in Kelvin-Helmholtz vortices journal September 2001
Geospace Environment Modeling magnetic reconnection challenge: Simulations with a full particle electromagnetic code journal March 2001
The Axial Double Probe and Fields Signal Processing for the MMS Mission journal December 2014
Finite-Resistivity Instabilities of a Sheet Pinch journal January 1963
Collisionless magnetic reconnection: Electron processes and transport modeling journal March 2001
The Spin-Plane Double Probe Electric Field Instrument for MMS journal November 2014
Asymmetric magnetic reconnection in the presence of a guide field: ASYMMETRIC MAGNETIC RECONNECTION journal November 2009
Evolution of an MHD-scale Kelvin-Helmholtz vortex accompanied by magnetic reconnection: Two-dimensional particle simulations: EVOLUTION OF VORTEX-INDUCED RECONNECTION journal March 2011
Advances in petascale kinetic plasma simulation with VPIC and Roadrunner journal July 2009
Three-dimensional dynamics of vortex-induced reconnection and comparison with THEMIS observations: VORTEX-INDUCED RECONNECTION IN 3-D journal September 2013
Mass and Energy Transfer Across the Earth's Magnetopause Caused by Vortex-Induced Reconnection: Mass and Energy Transfer by KH Vortex journal November 2017
On the evolution of a magnetic flux rope: Two-dimensional MHD simulation results: THE EVOLUTION OF MAGNETIC FLUX ROPES journal October 2015
Signatures of complex magnetic topologies from multiple reconnection sites induced by Kelvin-Helmholtz instability: KH Wave Induced Reconnection and Topology journal October 2016

Cited By (2)


Similar Records

Magnetised Kelvin-Helmholtz instability in the intermediate regime between subsonic and supersonic regimes
Journal Article · Sun Jul 15 00:00:00 EDT 2012 · Physics of Plasmas · OSTI ID:1565634

Auroral activity associated with Kelvin-Helmholtz instability at the inner edge of the low-latitude boundary layer
Journal Article · Sat Oct 01 00:00:00 EDT 1994 · Journal of Geophysical Research · OSTI ID:1565634

ON MULTIPLE RECONNECTION X-LINES AND TRIPOLAR PERTURBATIONS OF STRONG GUIDE MAGNETIC FIELDS
Journal Article · Wed May 20 00:00:00 EDT 2015 · Astrophysical Journal · OSTI ID:1565634