Instabilities and turbulence in low-$β$ guide field reconnection exhausts with kinetic Riemann simulations
Abstract
The role of turbulence in low-$β$, guide-field reconnection exhausts is explored in 2D reconnection and 2D and 3D Riemann simulations. The structure of the exhaust and associated turbulence is controlled by a pair of rotational discontinuities (RDs) at the exhaust boundary and a pair of slow shocks (SSs) that are generated by counterstreaming ions beams. In 2D, the exhaust develops large-amplitude striations at the ion Larmor radius scale that are produced by electron-beam-driven ion cyclotron waves. The electron beams driving the instability are injected into the exhaust from one of the RDs. However, in 3D Riemann simulations, the additional dimension (in the out-of-plane direction) results in strong Buneman and electron-electron streaming instabilities at the RD which suppress the electron beam formation and therefore the striations in the exhaust. The strength of the streaming instabilities at the RD is controlled by the ratio of the electron thermal speed to Alfvén speed, with the lower thermal speed being more unstable. In the 3D simulations, an ion-ion streaming instability acts to partially thermalize the counterstreaming ion beams at the SSs. This instability is controlled by the ratio of the sound speed to Alfvén speed and is expected to be stable in the low $β$ solar corona. The results suggest that in a guide field reconnection exhaust with 1 $$\gg$$ $β >$ $$m_e/m_i$$, the kinetic-scale turbulence that develops will be too weak to play a significant role in energy conversion and particle acceleration. Therefore, the energy conversion will be mostly controlled by laminar physics or multi-x-line reconnection.
- Authors:
-
- Univ. of Maryland, College Park, MD (United States). Inst. for Research in Electronics and Applied Physics
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1577787
- Grant/Contract Number:
- NNN06AA01C
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 10; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Physics
Citation Formats
Zhang, Qile, Drake, J. F., and Swisdak, M. Instabilities and turbulence in low-$β$ guide field reconnection exhausts with kinetic Riemann simulations. United States: N. p., 2019.
Web. doi:10.1063/1.5121782.
Zhang, Qile, Drake, J. F., & Swisdak, M. Instabilities and turbulence in low-$β$ guide field reconnection exhausts with kinetic Riemann simulations. United States. doi:10.1063/1.5121782.
Zhang, Qile, Drake, J. F., and Swisdak, M. Tue .
"Instabilities and turbulence in low-$β$ guide field reconnection exhausts with kinetic Riemann simulations". United States. doi:10.1063/1.5121782. https://www.osti.gov/servlets/purl/1577787.
@article{osti_1577787,
title = {Instabilities and turbulence in low-$β$ guide field reconnection exhausts with kinetic Riemann simulations},
author = {Zhang, Qile and Drake, J. F. and Swisdak, M.},
abstractNote = {The role of turbulence in low-$β$, guide-field reconnection exhausts is explored in 2D reconnection and 2D and 3D Riemann simulations. The structure of the exhaust and associated turbulence is controlled by a pair of rotational discontinuities (RDs) at the exhaust boundary and a pair of slow shocks (SSs) that are generated by counterstreaming ions beams. In 2D, the exhaust develops large-amplitude striations at the ion Larmor radius scale that are produced by electron-beam-driven ion cyclotron waves. The electron beams driving the instability are injected into the exhaust from one of the RDs. However, in 3D Riemann simulations, the additional dimension (in the out-of-plane direction) results in strong Buneman and electron-electron streaming instabilities at the RD which suppress the electron beam formation and therefore the striations in the exhaust. The strength of the streaming instabilities at the RD is controlled by the ratio of the electron thermal speed to Alfvén speed, with the lower thermal speed being more unstable. In the 3D simulations, an ion-ion streaming instability acts to partially thermalize the counterstreaming ion beams at the SSs. This instability is controlled by the ratio of the sound speed to Alfvén speed and is expected to be stable in the low $β$ solar corona. The results suggest that in a guide field reconnection exhaust with 1 $\gg$ $β >$ $m_e/m_i$, the kinetic-scale turbulence that develops will be too weak to play a significant role in energy conversion and particle acceleration. Therefore, the energy conversion will be mostly controlled by laminar physics or multi-x-line reconnection.},
doi = {10.1063/1.5121782},
journal = {Physics of Plasmas},
number = 10,
volume = 26,
place = {United States},
year = {2019},
month = {10}
}
Works referenced in this record:
The effects of strong temperature anisotropy on the kinetic structure of collisionless slow shocks and reconnection exhausts. II. Theory
journal, September 2011
- Liu, Yi-Hsin; Drake, J. F.; Swisdak, M.
- Physics of Plasmas, Vol. 18, Issue 9
The effects of turbulence on three-dimensional magnetic reconnection at the magnetopause: TURBULENCE DURING 3D RECONNECTION
journal, June 2016
- Price, L.; Swisdak, M.; Drake, J. F.
- Geophysical Research Letters, Vol. 43, Issue 12
Particle heating and energy partition in low- β guide field reconnection with kinetic Riemann simulations
journal, July 2019
- Zhang, Qile; Drake, J. F.; Swisdak, M.
- Physics of Plasmas, Vol. 26, Issue 7
Structure of reconnection layers in the magnetosphere
journal, January 1994
- Lin, Y.; Lee, L. C.
- Space Science Reviews, Vol. 65, Issue 1-2
Lower hybrid waves in the ion diffusion and magnetospheric inflow regions
journal, January 2017
- Graham, D. B.; Khotyaintsev, Yu. V.; Norgren, C.
- Journal of Geophysical Research: Space Physics, Vol. 122, Issue 1
Enhanced electron mixing and heating in 3‐D asymmetric reconnection at the Earth's magnetopause
journal, March 2017
- Le, A.; Daughton, W.; Chen, L. ‐J.
- Geophysical Research Letters, Vol. 44, Issue 5
Three-dimensional particle simulations of collisionless magnetic reconnection
journal, January 2002
- Zeiler, A.
- Journal of Geophysical Research, Vol. 107, Issue A9
Guide Field Reconnection: Exhaust Structure and Heating
journal, May 2018
- Eastwood, J. P.; Mistry, R.; Phan, T. D.
- Geophysical Research Letters, Vol. 45, Issue 10
Evidence of Magnetic Field Switch-Off in Collisionless Magnetic Reconnection
journal, September 2015
- Innocenti, M. E.; Goldman, M.; Newman, D.
- The Astrophysical Journal, Vol. 810, Issue 2
Cluster observations of electron holes in association with magnetotail reconnection and comparison to simulations
journal, January 2005
- Cattell, C.
- Journal of Geophysical Research, Vol. 110, Issue A1
The FIELDS Instrument Suite for Solar Probe Plus: Measuring the Coronal Plasma and Magnetic Field, Plasma Waves and Turbulence, and Radio Signatures of Solar Transients
journal, March 2016
- Bale, S. D.; Goetz, K.; Harvey, P. R.
- Space Science Reviews, Vol. 204, Issue 1-4
Anomalous Diffusion Arising from Microinstabilities in a Plasma
journal, January 1962
- Drummond, William E.; Rosenbluth, Marshall N.
- Physics of Fluids, Vol. 5, Issue 12
Turbulence in Three-Dimensional Simulations of Magnetopause Reconnection: TURBULENCE DURING 3-D RECONNECTION
journal, November 2017
- Price, L.; Swisdak, M.; Drake, J. F.
- Journal of Geophysical Research: Space Physics, Vol. 122, Issue 11
Collisionless slow shocks in magnetotail reconnection
journal, September 1999
- Cremer, Michael; Scholer, Manfred
- Geophysical Research Letters, Vol. 26, Issue 17
Plasma Heating and Alfvénic Turbulence Enhancement During Two Steps of Energy Conversion in Magnetic Reconnection Exhaust Region of Solar Wind
journal, April 2018
- Jiansen, He; Xingyu, Zhu; Yajie, Chen
- The Astrophysical Journal, Vol. 856, Issue 2
Solar Wind Electrons Alphas and Protons (SWEAP) Investigation: Design of the Solar Wind and Coronal Plasma Instrument Suite for Solar Probe Plus
journal, October 2015
- Kasper, Justin C.; Abiad, Robert; Austin, Gerry
- Space Science Reviews, Vol. 204, Issue 1-4
The effects of strong temperature anisotropy on the kinetic structure of collisionless slow shocks and reconnection exhausts. I. Particle-in-cell simulations
journal, June 2011
- Liu, Yi-Hsin; Drake, J. F.; Swisdak, M.
- Physics of Plasmas, Vol. 18, Issue 6
Formation of Electron Holes and Particle Energization During Magnetic Reconnection
journal, February 2003
- Drake, J. F.
- Science, Vol. 299, Issue 5608
Structure of the reconnection layer and the associated slow shocks: Two-dimensional simulations of a Riemann problem
journal, December 2000
- Cremer, Michael; Scholer, Manfred
- Journal of Geophysical Research: Space Physics, Vol. 105, Issue A12
Properties of Turbulence in the Reconnection Exhaust: Numerical Simulations Compared with Observations
journal, May 2017
- Pucci, F.; Servidio, S.; Sorriso-Valvo, L.
- The Astrophysical Journal, Vol. 841, Issue 1
PDRK: A General Kinetic Dispersion Relation Solver for Magnetized Plasma
journal, February 2016
- Xie, Huasheng; Xiao, Yong
- Plasma Science and Technology, Vol. 18, Issue 2
A current filamentation mechanism for breaking magnetic field lines during reconnection
journal, June 2011
- Che, H.; Drake, J. F.; Swisdak, M.
- Nature, Vol. 474, Issue 7350
Switch-off slow shock/rotational discontinuity structures in collisionless magnetic reconnection: What to look for in satellite observations: SWITCH-OFF STRUCTURES IN RECONNECTION
journal, April 2017
- Innocenti, M. E.; Cazzola, E.; Mistry, R.
- Geophysical Research Letters, Vol. 44, Issue 8
The structure of the magnetic reconnection exhaust boundary
journal, February 2012
- Liu, Yi-Hsin; Drake, J. F.; Swisdak, M.
- Physics of Plasmas, Vol. 19, Issue 2
Non-Maxwellian electron distribution functions due to self-generated turbulence in collisionless guide-field reconnection
journal, October 2016
- Muñoz, P. A.; Büchner, J.
- Physics of Plasmas, Vol. 23, Issue 10
Self-oscillations excited by two stream ion-ion instability
journal, September 1977
- Fujita, Takao; Ohnuma, Toshiro; Adachi, Saburo
- Plasma Physics, Vol. 19, Issue 9
On the kinetic structure of the magnetotail reconnection layer
journal, September 1998
- Scholer, M.; Lottermoser, R. -F.
- Geophysical Research Letters, Vol. 25, Issue 17