In situ detection of collisionless reconnection in the Earth's magnetotail

Øieroset, M.; Phan, T. D.; Fujimoto, M.; Lin, R. P.; Lepping, R. P.

doi:10.1038/35086520

Cited by 516 publications

(497 citation statements)

References 25 publications

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“…There are fluctuations in B M in the exhaust but these variations are not consistent with the Hall field pattern, and their magnitude is substantially less then the 30-40% level (of the anti-parallel field) that had previously been reported in the vicinity of the X-line in the magnetosphere [e.g., Nagai et al, 2001;Øieroset et al, 2001]. This could suggest that the Hall field diminishes in strength with distance from the X-line.…”

Section: Reconnection Rate and The Location Of The X-linementioning

confidence: 49%

Detection of oppositely directed reconnection jets in a solar wind current sheet

Davis¹,

Phan²,

Gosling³

et al. 2006

Geophysical Research Letters

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We report the first two‐spacecraft (Wind and ACE) detection of oppositely directed plasma jets within a bifurcated current sheet in the solar wind. The event occurred on January 3, 2003 and provides further direct evidence that such jets result from reconnection. The magnetic shear across the bifurcated current sheet at both Wind and ACE was ∼150°, indicating that the magnetic shear must have been the same at the reconnection site located between the two spacecraft. These observations thus provide strong evidence for component merging with a guide field ∼ 30% of the antiparallel field. The dimensionless reconnection rate based on the measured inflow was 0.03, implying fast reconnection.

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Section: Reconnection Rate and The Location Of The X-linementioning

confidence: 49%

Detection of oppositely directed reconnection jets in a solar wind current sheet

Davis¹,

Phan²,

Gosling³

et al. 2006

Geophysical Research Letters

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“…Through magnetic reconnection, magnetic field lines of opposite polarity reconfigure to a lower energy state, with the release of magnetic energy as heat, directed plasma flow, and the penetration of the solar wind into the magnetosphere. Magnetic reconnection in the magnetotail has been observed by the Wind spacecraft in a serendipitous encounter, which has revealed the key processes predicted by the models [44].…”

Section: Testing Celeste3d Against the Gem Challengementioning

confidence: 99%

“…(43) and (44) can be compared: Their only difference lies in the term ∇∇ · E n+θ , which is replaced by −∇∇ · (µ · E n+θ ) in Eq. (44). In Eq.…”

Section: Temporal Discretizationmentioning

confidence: 99%

A Simplified Implicit Maxwell Solver

Ricci

Lapenta

Brackbill

2002

Journal of Computational Physics

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We apply the second-order formulation of Maxwell's equations proposed by Jiang et al. (1996, J. Comput. Phys. 125, 104) to the solution of the implicit formulation of the three-dimensional, time-dependent Vlasov-Maxwell's system. An implicit finite difference algorithm is developed to solve the Maxwell's equations in a bounded domain with physical boundary conditions comprising electrically conducting walls (perfect conductors) and constant magnetic flux walls. We formulate the boundary conditions for Maxwell's equations to satisfy Poisson's equation throughout the domain by solving it only on the boundary. This eliminates the need for a separate projection step. We compare numerical results with analytical solutions for electromagnetic waves in vacuo, and using the implicit particle-in-cell code CELESTE3D, we test the new solver on the geospace environment modeling magnetic reconnection challenge problem. c 2002 Elsevier Science (USA)

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“…If a spacecraft flies through the ion diffusion region along the outflow direction, the expected large-scale signatures would be a reversal of plasma jetting, accompanied by a reversal of the normal component of the magnetic field. Coinciding with these reversals, one would also expect to detect portions of the quadrupolar out-of-plane Hall magnetic field (e.g., Oieroset et al 2001;Runov et al 2003;Borg et al 2005;Eastwood et al 2010aEastwood et al , 2010b) and bi-polar Hall electric field (Wygant et al 2005;Borg et al 2005;. Figure 1 displays an example of reported ion diffusion crossing by the Cluster spacecraft (Borg et al 2005) indicated by the reversals of the reconnection jets ( Fig.…”

Section: Magnetotailmentioning

confidence: 99%

Establishing the Context for Reconnection Diffusion Region Encounters and Strategies for the Capture and Transmission of Diffusion Region Burst Data by MMS

et al. 2015

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This paper describes the efforts of our Inter-Disciplinary Scientist (IDS) team to (a) establish the large-scale context for reconnection diffusion region encounters by MMS at the magnetopause and in the magnetotail, including the distinction between X-line and O-line encounters, that would help the identification of diffusion regions in spacecraft data, and (b) devise possible strategies that can be used by MMS to capture and transmit burst data associated with diffusion region candidates. At the magnetopause we suggest the strategy of transmitting burst data from all magnetopause crossings so that no magnetopause reconnection diffusion regions encountered by the spacecraft will be missed. The strategy is made possible by the MMS mass memory and downlink budget. In the magnetotail, it is estimated that MMS will be able to transmit burst data for all diffusion regions, all reconnection jet fronts (a.k.a. dipolarization fronts) and separatrix encounters, but less than 50 % of reconnection exhausts encountered by the spacecraft. We also discuss automated burst trigger schemes that could capture various reconnection-related phenomena. The identification of candidate diffusion region encounters by the burst trigger schemes will be verified and improved by a Scientist-In-The-Loop (SITL). With the knowledge of the properties of the region surrounding the diffusion region and the combination of automated burst triggers and further optimization by the SITL, MMS should be able to capture most diffusion regions it encounters.

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In situ detection of collisionless reconnection in the Earth's magnetotail

Cited by 516 publications

References 25 publications

Detection of oppositely directed reconnection jets in a solar wind current sheet

Detection of oppositely directed reconnection jets in a solar wind current sheet

A Simplified Implicit Maxwell Solver

Establishing the Context for Reconnection Diffusion Region Encounters and Strategies for the Capture and Transmission of Diffusion Region Burst Data by MMS

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