Electron-only reconnection

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August undefined, 2024

WebDec 18, 2024 · All electrons, like all elementary particles, are completely identical and thus indistinguishable. They can be in different quantum states, but you cannot be sure which … 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 as a Transition From Quiet Current …

WebApr 10, 2024 · Consider a plasmoid embedded in a current sheet undergoing 2D anti-parallel MHD reconnection with electric and magnetic fields E → and B →, respectively.Away from the x-point, the dominant electric field component is the motional field, which drives the “E cross B” drift u → E = c E → × B → / B 2, which, along with all … 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 … sprotbrough dental practice doncaster

Non-thermal electron acceleration from magnetically driven reconnection …

Webmicroflares and nanoflares in Fig.4. The nonthermal electron distribution is assumed to follow a powerlaw between some energy E min and E max with powerlaw index δand having a density denoted by nnth. The thermal electron density, temperature and magnetic field is denoted bynth, T and B respectively. The depth along the line-of-sight (LOS) is ... WebApr 3, 2024 · The magnetic reconnection experiment has recently seen short wavelength (k ρ e ∼ 1) lower-hybrid waves near the electron diffusion region in strong guide field reconnection.Based on plasma parameters from the experiment, we perform a three-dimensional fully kinetic simulation in order to investigate the generation of the lower … WebApr 3, 2024 · Magnetic reconnection is known to be the most important mechanism not only for plasma thermalization up to the equivalent temperature of the Alfvén velocity, but also for accelerating nonthermal particles whose energies exceed their thermal energies (for example, Birn & Priest 2007; Zweibel & Yamada 2009; Hoshino & Lyubarsky 2012; … sprotbrough falls walk

Magnetic reconnection driven by electron dynamics - Nature

[2111.03118] Energy Dissipation in Turbulent Reconnection

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 WebAug 26, 2024 · Reconnection is usually accompanied by the appearance of ion and electron outflow jets. Recently, however, in situ observations by Magnetospheric Multiscale (MMS) in Earth's magnetosheath have revealed some peculiar magnetic reconnection events producing electron jets with no ion counterpart ("electron-only reconnection"; … sprotbrough falls doncasterWebHybrid-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 … sheree muller

"WebFeb 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 ... " - Electron-only reconnection

Electron-only reconnection

Magnetic reconnection and kinetic waves generated in the …

WebNov 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 ... WebJun 30, 2024 · The magnetic reconnection without coupling to ions is observed in the magnetosheath because of tiny spatial and temporal scales of turbulent plasmas 14.The …

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WebNov 4, 2024 · We study the nature of pressure-strain interaction at reconnection sites, detected by NASA's Magnetospheric Multiscale (MMS) Mission. We employ data from a series of published case studies, including a large-scale reconnection event at the magnetopause, three small-scale reconnection events at the magnetosheath current … 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 ...

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 ... 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 …

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 ... WebNov 30, 2024 · Introduction. Magnetic reconnection is a fundamental factor in space and astrophysical plasmas, where anti-parallel magnetic field components reconnect and release the magnetic energy as the ...

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 to the ion kinetic scale. In these electron-only reconnection events, typical signatures of reconnection where identified, such as the characteristic magnetic and current profiles, …

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 ... sheree morris makeupWebFeb 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 … sprotbrough hallWebFeb 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 … sprotbrough dvsaWebMay 31, 2024 · The time- and spatial scales of magnetotail electron-only reconnection determine how likely it is to be observed by MMS. As shown in Figure 4, the duration of … sheree mullins attorneyWebMar 1, 2024 · However, electron-only reconnection also exists in the magnetotail as detected by the Magnetospheric Multiscale (MMS) spacecraft on 17 June 2024 (Hubbert et al., 2024 (Hubbert et al., , 2024 Lu et ... sheree morrisWebDec 5, 2024 · The importance of electron dynamics in reconnection onset was even further emphasized by Lu et al. , who show both through observation and simulation that full scale magnetic reconnection initiates from electron-only reconnection in the presence of a strong external driver. sprotbrough mpWebApr 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 ... sprotbrough flash bird sightings