Mesoscale PIC simulation of double layers and electron holes affecting parallel and transverse accelerations of electrons and ions

Singh, Nagendra; Araveti, Sudeepth; Wells, Earl

doi:10.1029/2010ja016323

Cited by 14 publications

(5 citation statements)

References 60 publications

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“…Recently, Singh et al . [] find that multiple dynamically evolving DLs could be created in their particle‐in‐cell simulations, which is consistent with our observation in the period E3.…”

Section: Observation and Analysissupporting

confidence: 90%

Observation of double layer in the separatrix region during magnetic reconnection

Wang

Khotyaintsev

et al. 2014

Geophysical Research Letters

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We present in situ observation of double layer (DL) and associated electron measurement in the subspin time resolution in the separatrix region during reconnection for the first time. The DL is inferred to propagate away from the X line at a velocity of about ion acoustic speed and the parallel electric field carried by the DL can reach À20 mV/m. The electron displays a beam distribution inside the DL and streams toward the X line with a local electron Alfvén velocity. A series of electron holes moving toward the X line are observed in the wake of the DL. The identification of multiple similar DLs indicates that they are persistently produced and therefore might play an important role in energy conversion during reconnection. The observation suggests that energy dissipation during reconnection can occur in any region where the DL can reach.

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Section: Observation and Analysissupporting

confidence: 90%

Observation of double layer in the separatrix region during magnetic reconnection

Wang

Khotyaintsev

et al. 2014

Geophysical Research Letters

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“…In this condition, strong DLs can be generated at the reconnection site. These simulation results have been confirmed by the cluster observations published by Vaivads et al (2004).…”

Section: Simulation Resultssupporting

confidence: 85%

The double layers in the plasma sheet boundary layer during magnetic reconnection

Guo¹,

Yu²

2014

Preprint

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Abstract. We studied the evolutions of double layers which appear after the magnetic reconnection through two-dimensional electromagnetic particle-in-cell simulation. The simulation results show that the double layers are formed in the plasma sheet boundary layer after magnetic reconnection. At first, the double layers which have unipolar structures are formed. And then the double layers turn into bipolar structures, which will couple with another new weak bipolar structure. Thus a new double layer or tripolar structure comes into being. The double layers found in our work are about several ten Debye lengths, which accords with the observation results. It is suggested that the electron beam formed during the magnetic reconnection is responsible for the production of the double layers.

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“… Farrell et al [1998] showed electrostatic instabilities in the wake with 1‐D PIC simulations, although they did not further address the nature of the electrostatic instabilities. Birch and Chapman [2001a, 2001b, 2002] observed nonlinear electrostatic waves, namely, electron phase space holes [ Roberts and Berk , 1967; Singh et al , 2011], in 1‐D and 2‐D PIC simulations of the wake.…”

Section: Discussion and Summarymentioning

confidence: 99%

Kinetic instabilities in the lunar wake: ARTEMIS observations

Tao¹,

Ergun²,

Newman³

et al. 2012

J. Geophys. Res.

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The Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) mission is a new two‐probe lunar mission derived from the Time History of Events and Macroscale Interactions during Substorms (THEMIS) mission. On 13 February 2010, one of the two probes, ARTEMIS P1 (formerly THEMIS‐B), made the first lunar wake flyby of the mission. We present detailed analysis of the electrostatic waves observed on the outbound side of the flyby that were associated with electron beams. Halekas et al. (2011) derived a net potential across the lunar wake from observations and suggested that the net potential generated the observed electron beams and the electron beams in turn excited the observed electrostatic waves due to kinetic instabilities. The wavelengths and velocities of the electrostatic waves are estimated, using high‐resolution electric field instrument data with cross‐spectrum analysis and cross‐correlation analysis. In general, the estimated wavelengths vary from a few hundred meters to a couple of thousand meters. The estimated phase velocities are on the order of 1000 km s−1. In addition, we perform 1‐D Vlasov simulations to help identify the mode of the observed electrostatic waves. We conclude that the observed electrostatic waves are likely on the electron beam mode branch.

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Mesoscale PIC simulation of double layers and electron holes affecting parallel and transverse accelerations of electrons and ions

Cited by 14 publications

References 60 publications

Observation of double layer in the separatrix region during magnetic reconnection

Observation of double layer in the separatrix region during magnetic reconnection

The double layers in the plasma sheet boundary layer during magnetic reconnection

Kinetic instabilities in the lunar wake: ARTEMIS observations

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