Electron only reconnection

Author: wgia

August undefined, 2024

WebFeb 1, 2024 · The Hall-MHD fluid model is found to reproduce kinetic reconnection rates only for a sufficiently strong guide field, for which ion inertia breaks the frozen-in condition and the outflow becomes Alfvénic in the kinetic system. ... the ions do not respond to the reconnection dynamics leading to “electron-only” reconnection with very large ... WebSep 18, 2024 · In the higher Mach number shock, abundant electron-only reconnection sites are generated with scales on the order of the ion skin depth or less. Non-reconnecting current sheets can also generate electron jets and energy dissipation can occur there as well. However, non-reconnecting current sheets with the magnetic field reversal typically …

Transition from ion-coupled to electron-only reconnection: …

WebNov 1, 2024 · Recent observations propose a new model: electron-only magnetic reconnection without ion coupling in an electron-scale current sheet. Based on the data from the Magnetospheric Multiscale (MMS ... clermiston hub

(PDF) Physical Implication of Two Types of Reconnection Electron ...

WebHybrid-Vlasov-Maxwell simulations of magnetized plasma turbulence including non-linear electron-inertia effects in a generalized Ohm's law are presented. When fluctuation energy is injected on scales sufficiently close to ion-kinetic scales, the ions efficiently become demagnetized and electron-scale current sheets largely dominate the distribution of the … WebApr 8, 2024 · The electron-only reconnection in the transition region of the quasi-parallel shock has a strong guide field, as shown in Figs. 2(e) and 3(e) and also in Fig. 6 later, and the outflow velocity is tilted with respect to the current sheet near the X line. Also, most of the electron-only reconnection sites have asymmetric field quantities across ... WebFeb 21, 2024 · Electron-only reconnection is a newly discovered, transient form of magnetic reconnection that does not couple with ions. In this article, we present satellite observations of quiet magnetotail current sheets, traditional magnetotail reconnection, and “electron-only” magnetotail reconnection events. We compare individual events of … clermiston hearts supporters

Transition from ion-coupled to electron-only reconnection: Basic ...

Electron-only reconnection and associated electron heating and ...

WebThose authors dubbed these events “electron-only reconnection” (hereafter, e-rec), to differentiate them from the usual (fast) collisionless reconnection process (e.g., [7–10]) … WebElectron-only reconnection exhibits much faster reconnection rates because the magnetic eld motion is not limited by the Alfv en speed. We develop a simplistic model … clermiston grove edinburghWebMar 1, 2024 · Notably, non-Maxwellian EVDFs comprised of a warm bulk population and a cold beam are directly measured during the electron-only reconnection. The electron beam velocity is comparable to, and scales with, electron Alfvén speed, revealing the signature of electron acceleration caused by electron-only reconnection. clermiston mains house

"WebMar 3, 2024 · The electron beam velocity is comparable to, and scales with, electron Alfvén speed, revealing the signature of electron acceleration caused by electron-only … " - Electron only reconnection

Electron only reconnection

(PDF) Physical Implication of Two Types of Reconnection Electron ...

WebJan 26, 2024 · Most of these secondary reconnections were electron-only reconnection that has recently been discovered in the magnetosheath. These secondary reconnections entangled the magnetic field lines and dissipated the magnetic energy in the outflow region far away from the primary X line. WebNov 19, 2024 · The American Astronomical Society (AAS), established in 1899 and based in Washington, DC, is the major organization of professional astronomers in North America. Its membership of

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WebJan 16, 2024 · In nearly all cases, the reconnection rate reaches the maximum values of 0.6−0.7, much higher than the typical ~0.1 rate expected for collisionless electron–ion reconnection 49: this is ... WebMar 11, 2024 · More information: Peiyun Shi et al, Laboratory Observations of Electron Heating and Non-Maxwellian Distributions at the Kinetic Scale during Electron-Only Magnetic Reconnection, Physical Review ...

WebFeb 21, 2024 · Electron-only reconnection is a newly discovered, transient form of magnetic reconnection that does not couple with ions. In this article, we present satellite … WebSep 27, 2024 · In the standard model of magnetic reconnection, both ions and electrons couple to the newly reconnected magnetic field lines and are ejected away from the …

WebApr 1, 2024 · The electron outflow speed in electron-only reconnection shows a positive correlation with the theoretical speed, which is close to the local electron Alfvén speed, and a strong convection electric field is generated by the large electron outflow. As a result, the reconnection electric field becomes much larger than those in the standard ... WebMar 3, 2024 · The electron beam velocity is comparable to, and scales with, electron Alfvén speed, revealing the signature of electron acceleration caused by electron-only reconnection. The observation of oppositely directed electron beams on either side of the X-point provides “smoking-gun” evidence of the occurrence of electron-only …

WebAug 16, 2024 · During this transition, the quasisteady reconnection rate decreases until the ions are fully coupled, ultimately reaching an asymptotic value. The scaling of the ion …

WebApr 9, 2024 · Similar electron-only reconnection events were found in the hybrid Vlasov–Maxwell simulations in Califano et al. when fluctuation energy was injected close … clermiston hillWebHere, both 2D and 3D kinetic particle-in-cell simulations are used to investigate electron-only reconnection, focusing on the reconnection rate and associated electron flows. … blunt prodigy s4Web4. 2:15 - 2:30 - Pryash Sharma Pyakurel – 3D electron-only reconnection 5. 2:30 - 2:45 - Matt Argall – Observations of kinetic entropy in the diffusion region of magnetic reconnection. 6. 2:45 - 3:00 - Blake Wetherton – Scaling of electron-scale heating in the exhausts of guide-field reconnection events. blunt rabbit witneyWebNov 7, 2024 · Electron-only reconnection is a variant of magnetic reconnection without significant ion involvement. Such reconnection has recently been observed in the terrestrial magnetosheath and has received considerable attention due to its likely role in the energy cascade of turbulent magnetized plasmas. Different electron energization mechanisms ... blunt probe for circumcisionWebplasma outﬂow from the reconnection layer on the ion scales. Recent observations of the Earth’s magnetosheath by the NASA Magnetospheric Multiscale mission have, however, … blunt radioWebof reconnection in space, i.e., electron-only reconnection in the ion-scale current sheet, which is different from the traditional magnetic reconnection model, and challenges the … blunt prodigy s8 stunt scooter scratchWebFeb 28, 2024 · The properties of electron-only reconnection X-lines around the flux ropes are consistent with the recent observations of electron-only reconnections in the turbulent magnetosheath (Phan et al ... clermiston hotel