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Title: Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation

Abstract

Magnetic reconnection in a quasi-parallel bow shock is investigated with two-dimensional local particle-in-cell simulations. In the shock transition and downstream regions, large amplitude magnetic fluctuations exist, and abundant current sheets form. In some current sheets, reconnection occurs, and ion-scale and electron-scale magnetic islands are generated. In electron-scale island regions, only electron outflow jets are observed, producing a quadrupolar out-of-plane magnetic field pattern, while in ion-scale islands, both ions and electrons are involved and energized in reconnection. Finally, normalized reconnection rates are obtained to be between around 0.1 to 0.2, and particle acceleration signatures are seen in distribution functions.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [2]
  1. Univ. of Maryland, College Park, MD (United States); NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  2. NASA Goddard Space Flight Center (GSFC), Greenbelt, MD (United States)
  3. Univ. of Bergen (Norway)
Publication Date:
Research Org.:
Univ. of Maryland, College Park, MD (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Science Foundation (NSF); National Aeronautics and Space Administration (NASA); Research Council of Norway
OSTI Identifier:
1612464
Alternate Identifier(s):
OSTI ID: 1558812
Grant/Contract Number:  
SC0016278; AGS-1619584; AGS-1552142; 80NSSC18K1369; 223252/F50
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 46; Journal Issue: 16; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; geology; shock waves; magnetic reconnection; PIC simulation; Earth's bow shock; quasi-parallel shock; acceleration

Citation Formats

Bessho, N., Chen, L. ‐J., Wang, S., Hesse, M., and Wilson, L. B. Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation. United States: N. p., 2019. Web. https://doi.org/10.1029/2019gl083397.
Bessho, N., Chen, L. ‐J., Wang, S., Hesse, M., & Wilson, L. B. Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation. United States. https://doi.org/10.1029/2019gl083397
Bessho, N., Chen, L. ‐J., Wang, S., Hesse, M., and Wilson, L. B. Mon . "Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation". United States. https://doi.org/10.1029/2019gl083397. https://www.osti.gov/servlets/purl/1612464.
@article{osti_1612464,
title = {Magnetic Reconnection in a Quasi-Parallel Shock: Two-Dimensional Local Particle-in-Cell Simulation},
author = {Bessho, N. and Chen, L. ‐J. and Wang, S. and Hesse, M. and Wilson, L. B.},
abstractNote = {Magnetic reconnection in a quasi-parallel bow shock is investigated with two-dimensional local particle-in-cell simulations. In the shock transition and downstream regions, large amplitude magnetic fluctuations exist, and abundant current sheets form. In some current sheets, reconnection occurs, and ion-scale and electron-scale magnetic islands are generated. In electron-scale island regions, only electron outflow jets are observed, producing a quadrupolar out-of-plane magnetic field pattern, while in ion-scale islands, both ions and electrons are involved and energized in reconnection. Finally, normalized reconnection rates are obtained to be between around 0.1 to 0.2, and particle acceleration signatures are seen in distribution functions.},
doi = {10.1029/2019gl083397},
journal = {Geophysical Research Letters},
number = 16,
volume = 46,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 8 works
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Figures / Tables:

Figure 1 Figure 1: (a) Magnetic field By profiles at y= 25.6di. (b–d) Magnetic field lines in x‐y. (e–j) Field quantities at Ωit= 18.75. (e) Electric field Ex. (f) Current density Jz. (g) Magnetic field Bz. (h) Electron density ne. (i, j) Electron fluid velocities Vex and Vey. Black curves denote magneticmore » field lines. X letters denote X‐line positions.« less

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Works referenced in this record:

Ion Acceleration at the Earth’s Bow Shock
journal, June 2012


Collisionless magnetic reconnection in the presence of a guide field
journal, August 2004

  • Ricci, Paolo; Brackbill, J. U.; Daughton, W.
  • Physics of Plasmas, Vol. 11, Issue 8
  • DOI: 10.1063/1.1768552

Microphysics of Quasi-parallel Shocks in Collisionless Plasmas
journal, March 2013


Electron magnetic reconnection without ion coupling in Earth’s turbulent magnetosheath
journal, May 2018


Suppression of collisionless magnetic reconnection in asymmetric current sheets
journal, June 2016

  • Liu, Yi-Hsin; Hesse, Michael
  • Physics of Plasmas, Vol. 23, Issue 6
  • DOI: 10.1063/1.4954818

Electron Pre-acceleration at Nonrelativistic High-Mach-number Perpendicular Shocks
journal, September 2017

  • Bohdan, Artem; Niemiec, Jacek; Kobzar, Oleh
  • The Astrophysical Journal, Vol. 847, Issue 1
  • DOI: 10.3847/1538-4357/aa872a

Scaling of asymmetric magnetic reconnection: General theory and collisional simulations
journal, October 2007

  • Cassak, P. A.; Shay, M. A.
  • Physics of Plasmas, Vol. 14, Issue 10
  • DOI: 10.1063/1.2795630

The link between shocks, turbulence, and magnetic reconnection in collisionless plasmas
journal, June 2014

  • Karimabadi, H.; Roytershteyn, V.; Vu, H. X.
  • Physics of Plasmas, Vol. 21, Issue 6
  • DOI: 10.1063/1.4882875

Observational Evidence of Magnetic Reconnection in the Terrestrial Bow Shock Transition Region
journal, January 2019

  • Wang, Shan; Chen, Li-Jen; Bessho, Naoki
  • Geophysical Research Letters, Vol. 46, Issue 2
  • DOI: 10.1029/2018GL080944

Electron scale structures and magnetic reconnection signatures in the turbulent magnetosheath: CURRENT SHEETS IN THE MAGNETOSHEATH
journal, June 2016

  • Yordanova, E.; Vörös, Z.; Varsani, A.
  • Geophysical Research Letters, Vol. 43, Issue 12
  • DOI: 10.1002/2016GL069191

In situ evidence of magnetic reconnection in turbulent plasma
journal, March 2007

  • Retinò, A.; Sundkvist, D.; Vaivads, A.
  • Nature Physics, Vol. 3, Issue 4
  • DOI: 10.1038/nphys574

Observations of Magnetic Reconnection in the Transition Region of Quasi‐Parallel Shocks
journal, February 2019

  • Gingell, I.; Schwartz, S. J.; Eastwood, J. P.
  • Geophysical Research Letters, Vol. 46, Issue 3
  • DOI: 10.1029/2018GL081804

Upstream waves, shocklets, short large-amplitude magnetic structures and the cyclic behavior of oblique quasi-parallel collisionless shocks
journal, January 1993

  • Scholer, Manfred
  • Journal of Geophysical Research: Space Physics, Vol. 98, Issue A1
  • DOI: 10.1029/92JA01875

Waves and turbulence in high Mach number nearly parallel collisionless shocks
journal, May 1997

  • Scholer, M.; Kucharek, H.; Jayanti, V.
  • Journal of Geophysical Research: Space Physics, Vol. 102, Issue A5
  • DOI: 10.1029/97JA00345

MMS Observations and Hybrid Simulations of Surface Ripples at a Marginally Quasi-Parallel Shock: RIPPLES AT A QUASI-PARALLEL SHOCK
journal, November 2017

  • Gingell, Imogen; Schwartz, Steven J.; Burgess, David
  • Journal of Geophysical Research: Space Physics, Vol. 122, Issue 11
  • DOI: 10.1002/2017JA024538

Self-consistent study of a perpendicular collisionless and nonresistive shock
journal, January 1987

  • Lembege, B.; Dawson, J. M.
  • Physics of Fluids, Vol. 30, Issue 6
  • DOI: 10.1063/1.866191

Physical mechanisms for turbulent dissipation in collisionless shock waves
journal, January 1982


Open Boundary Condition for Particle Simulation in Magnetic Reconnection Research
journal, January 2009

  • Ohtani, Hiroaki; Horiuchi, Ritoku
  • Plasma and Fusion Research, Vol. 4
  • DOI: 10.1585/pfr.4.024

An improved masking method for absorbing boundaries in electromagnetic particle simulations
journal, June 2001


MMS Observation of Magnetic Reconnection in the Turbulent Magnetosheath: RECONNECTION IN THE MAGNETOSHEATH
journal, November 2017

  • Vörös, Z.; Yordanova, E.; Varsani, A.
  • Journal of Geophysical Research: Space Physics, Vol. 122, Issue 11
  • DOI: 10.1002/2017JA024535

Numerical studies of magnetosonic collisionless shock waves
journal, December 1972


Stochastic electron acceleration during spontaneous turbulent reconnection in a strong shock wave
journal, February 2015


    Works referencing / citing this record:

    Evidence of Magnetic Nulls in the Reconnection at Bow Shock
    journal, September 2019

    • Chen, Z. Z.; Fu, H. S.; Wang, Z.
    • Geophysical Research Letters, Vol. 46, Issue 17-18
    • DOI: 10.1029/2019gl084360

    Can Reconnection be Triggered as a Solar Wind Directional Discontinuity Crosses the Bow Shock? A Case of Asymmetric Reconnection
    journal, November 2019

    • Hamrin, M.; Gunell, H.; Goncharov, O.
    • Journal of Geophysical Research: Space Physics, Vol. 124, Issue 11
    • DOI: 10.1029/2019ja027006

    Statistics of Reconnecting Current Sheets in the Transition Region of Earth's Bow Shock
    journal, January 2020

    • Gingell, I.; Schwartz, S. J.; Eastwood, J. P.
    • Journal of Geophysical Research: Space Physics, Vol. 125, Issue 1
    • DOI: 10.1029/2019ja027119

    Influence of parallel shearing flow on the switch-off effect of magnetic reconnection
    journal, December 2019

    • Liu, Yang; Huang, Junfeng; Zhu, Tengfei
    • AIP Advances, Vol. 9, Issue 12
    • DOI: 10.1063/1.5119841

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