DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fast Ion Heating in Transient Collisionless Magnetic Reconnection via an Intrinsic Stochastic Mechanism

Journal Article · · The Astrophysical Journal. Letters (Online)
ORCiD logo [1]; ORCiD logo [2]
  1. California Inst. of Technology (CalTech), Pasadena, CA (United States). Applied Physics and Materials Science; California Institute of Technology
  2. California Inst. of Technology (CalTech), Pasadena, CA (United States). Applied Physics and Materials Science

Stochastic heating has typically been known to be a powerful ion heating mechanism in the solar wind, atmosphere, and flares. Here, we show that stochastic ion heating is inherent to transient collisionless magnetic reconnection. The explanation exploits the connected nature of electron canonical vorticity to show analytically that the in-plane electric and magnetic fields in a typical reconnection geometry satisfy the condition for stochastic heating of ions. Electron fluid simulations, test ion simulations, and comparisons to experiments all support the existence of this mechanism.

Research Organization:
California Inst. of Technology (CalTech), Pasadena, CA (United States)
Sponsoring Organization:
Air Force Office of Scientific Research (AFOSR); USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
Grant/Contract Number:
FG02-04ER54755
OSTI ID:
1574944
Journal Information:
The Astrophysical Journal. Letters (Online), Journal Name: The Astrophysical Journal. Letters (Online) Journal Issue: 2 Vol. 868; ISSN 2041-8213
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English

References (65)

The competition of electron and ion heating during magnetic reconnection: PARTITION OF HEATING IN RECONNECTION journal November 2015
Electric field measurements in solar flares journal June 1986
The general problem of the stability of motion journal February 1995
Plasma physics via computer simulation journal September 1986
Orbits of magnetized charged particles in parabolic and inverse electrostatic potentials journal January 2016
Geospace Environmental Modeling (GEM) Magnetic Reconnection Challenge journal March 2001
Energy partition in two solar flare/CME events journal January 2004
Cluster observations of an intense normal component of the electric field at a thin reconnecting current sheet in the tail and its role in the shock-like acceleration of the ion fluid into the separatrix region: ELECTRIC FIELDS AT THE RECONNECTION REGION journal September 2005
Multi-scale structure of the electron diffusion region: STRUCTURE OF THE ELECTRON DIFFUSION REGION journal July 2007
Ion heating resulting from pickup in magnetic reconnection exhausts: ION PICKUP journal May 2009
Onset of magnetic reconnection in the presence of a normal magnetic field: Realistic ion to electron mass ratio: MAGNETIC RECONNECTION ONSET journal October 2010
Proton acceleration in antiparallel collisionless magnetic reconnection: Kinetic mechanisms behind the fluid dynamics: PROTON DYNAMICS IN MAGNETIC RECONNECTION journal September 2011
Evidence for magnetic field reconnection at the Earth's magnetopause journal January 1981
Nature of the heating mechanism for the diffuse solar corona journal June 1998
Rapid magnetic reconnection in the Earth’s magnetosphere mediated by whistler waves journal March 2001
Conversion of magnetic energy in the magnetic reconnection layer of a laboratory plasma journal September 2014
Solar nanoflares and other smaller energy release events as growing drift waves journal September 2009
A review of pressure anisotropy caused by electron trapping in collisionless plasma, and its implications for magnetic reconnection journal June 2013
Extreme ultra-violet burst, particle heating, and whistler wave emission in fast magnetic reconnection induced by kink-driven Rayleigh-Taylor instability journal March 2016
A generalized two-fluid picture of non-driven collisionless reconnection and its relation to whistler waves journal May 2017
An intuitive two-fluid picture of spontaneous 2D collisionless magnetic reconnection and whistler wave generation journal May 2018
Observation of fast stochastic ion heating by drift waves journal December 1991
Two-fluid theory of collisionless magnetic reconnection journal April 1997
Observations of fast anisotropic ion heating, ion cooling, and ion recycling in large-amplitude drift waves journal March 1998
The general problem of the stability of motion journal March 1992
Reconnection in a Weakly Stochastic Field journal June 1999
Chromospheric Magnetic Reconnection and Its Possible Relationship to Coronal Heating journal August 1999
The Effect of Temperature Anisotropy on Observations of Doppler Dimming and Pumping in the Inner Corona journal July 1998
Alfvenic Turbulence in the Extended Solar Corona: Kinetic Effects and Proton Heating journal September 2003
RHESSI Observations of Particle Acceleration and Energy Release in an Intense Solar Gamma-Ray Line Flare journal September 2003
Kinetic Instability of Drift-AlfvÉN Waves in Solar Corona and Stochastic Heating journal July 2010
Perpendicular ion Heating by Low-Frequency AlfvÉN-Wave Turbulence in the Solar wind journal August 2010
Probing the Outer Galactic halo with rr Lyrae from the Catalina Surveys journal January 2013
Observational test of Stochastic Heating in Low-β Fast-Solar-Wind Streams journal August 2013
Stochastic Heating, Differential Flow, and the Alpha-To-Proton Temperature Ratio in the Solar wind journal September 2013
ALFVÉN WAVE SOLAR MODEL (AWSoM): CORONAL HEATING journal January 2014
Particle Acceleration via Reconnection Processes in the Supersonic Solar wind journal November 2014
A Kinetic Transport Theory for Particle Acceleration and Transport in Regions of Multiple Contracting and Reconnecting Inertial-Scale flux Ropes journal March 2015
Particle Acceleration and Plasma Dynamics During Magnetic Reconnection in the Magnetically Dominated Regime journal June 2015
Diffusive Shock Acceleration and Reconnection Acceleration Processes journal November 2015
A two-fluid helicity transport model for flux-rope merging journal March 2014
Electron Force Balance in Steady Collisionless-Driven Reconnection journal November 2008
Stochastic Particle Acceleration in Multiple Magnetic Islands during Reconnection journal March 2012
Observation of Ion Acceleration and Heating during Collisionless Magnetic Reconnection in a Laboratory Plasma journal May 2013
Electron and Ion Heating Characteristics during Magnetic Reconnection in the MAST Spherical Tokamak journal November 2015
Anomalous Heating and Plasmoid Formation in a Driven Magnetic Reconnection Experiment journal February 2017
Observation of fast stochastic ion heating by drift waves journal September 1987
Invariants and Geometric Structures in Nonlinear Hamiltonian Magnetic Reconnection journal May 1998
Local Measurement of Nonclassical Ion Heating during Magnetic Reconnection journal April 2000
Laser-Induced Fluorescence Measurement of the Ion-Energy-Distribution Function in a Collisionless Reconnection Experiment journal December 2005
The universally growing mode in the solar atmosphere: coronal heating by drift waves journal September 2009
Electric fields in solar magnetic structures due to gradient-driven instabilities: heating and acceleration of particles: Electric fields in solar magnetic structures journal December 2009
Plasma Physics via Computer Simulation book January 1991
Acceleration of solar wind ions to 1 MeV by electromagnetic structures upstream of the Earth's bow shock journal May 2013
Plasma Physics via Computer Simulation book January 1991
Combining Diffusive Shock Acceleration with Acceleration by Contracting and Reconnecting Small-Scale flux Ropes at Heliospheric Shocks journal August 2016
An Unusual Energetic Particle Flux Enhancement Associated with Solar Wind Magnetic Island Dynamics journal September 2018
The universally growing mode in the solar atmosphere: coronal heating by drift waves text January 2009
Perpendicular Ion Heating by Low-Frequency Alfven-Wave Turbulence in the Solar Wind text January 2010
Kinetic instability of drift-Alfven waves in solar corona and stochastic heating text January 2010
Stochastic Particle Acceleration in Multiple Magnetic Islands during Reconnection text January 2012
Alfven Wave Solar Model (AWSoM): Coronal Heating text January 2013
Alfvenic Turbulence in the Extended Solar Corona: Kinetic Effects and Proton Heating text January 2003
The effect of temperature anisotropy on observations of Doppler dimming and pumping in the inner corona text January 1998
Reconnection in a Weakly Stochastic Field text January 1998

Cited By (3)