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We investigate electron heating by magnetic-field-aligned electric fields ($E_\parallel$) during anti-parallel magnetic reconnection in the Earth's magnetotail. Using a statistical sample of 140 reconnection outflows, we infer the…

The heating of electrons in collisionless magnetic reconnection is explored in particle-in-cell (PIC) simulations with non-zero guide fields so that electrons remain magnetized. In this regime electric fields parallel to B accelerate…

Plasma Physics · Physics 2015-06-19 J. T. Dahlin , J. F. Drake , M. Swisdak

Both analytical and numerical works show that magnetic reconnection must occur in hot accretion flows. This process will effectively heat and accelerate electrons. In this paper we use the numerical hybrid simulation of magnetic…

High Energy Astrophysical Phenomena · Physics 2014-11-20 Jian Ding , Feng Yuan , Edison Liang

This work presents a magnetic reconnection experiment in which the kinetic, magnetic and thermal properties of the plasma each play an important role in the overall energy balance and structure of the generated reconnection layer. Magnetic…

We perform a high-resolution two-dimensional fully-kinetic numerical simulation of a turbulent plasma system with observation-driven conditions, in order to investigate the interplay between turbulence, magnetic reconnection, and particle…

The physical processes that control the partition of released magnetic energy between electrons and ions during reconnection is explored through particle-in-cell simulations and analytical techniques. We demonstrate that the development of…

Space Physics · Physics 2023-07-25 C. C. Haggerty , M. A. Shay , J. F. Drake , T. D. Phan , C. T. McHugh

Hot collisionless accretion flows, such as the one in Sgr A$^{*}$ at our Galactic center, provide a unique setting for the investigation of magnetic reconnection. Here, protons are non-relativistic while electrons can be ultra-relativistic.…

High Energy Astrophysical Phenomena · Physics 2017-11-15 Michael E. Rowan , Lorenzo Sironi , Ramesh Narayan

Electron-only reconnection is a process recently observed in the Earth's magnetosheath, where magnetic reconnection occurs at electron kinetic scales with only electrons involved. Electron-only reconnection is likely to have a significant…

Plasma Physics · Physics 2025-07-23 Jincai Ren , Giuseppe Arrò , Maria Elena Innocenti , Giovanni Lapenta

The mechanisms controlling the relative heating and energization of electrons and protons during magnetic reconnection are explored. Simulations are carried out with the kglobal model, which produces bulk heating and the extended powerlaw…

Plasma Physics · Physics 2025-12-16 Zhiyu Yin , James F. Drake , Marc Swisdak

We report on the experimental observation of electron heating in electron-only magnetic reconnection in laser-driven laboratory mini-magnetospheres on the Large Plasma Device (LAPD) at the University of California, Los Angeles. In this…

We discuss electron acceleration and heating during collisionless magnetic reconnection by using the results of implicit kinetic simulations of Harris current sheets. We consider and compare electron dynamics in plasmas with different \beta…

Astrophysics · Physics 2009-11-07 Paolo Ricci , Giovanni Lapenta , J. U. Brackbill

The plasma heating during collisionless magnetic reconnection is investigated using particle-in-cell simulations. We analyze the time evolution of the plasma temperature associated with the motion of the reconnecting flux tube, where the…

High Energy Astrophysical Phenomena · Physics 2018-11-28 Masahiro Hoshino

Particles are heated efficiently through energy conversion processes such as shocks and magnetic reconnection in collisionless plasma environments. While empirical scaling laws for the temperature increase have been obtained, the precise…

Electron bulk energization in the diffusion region during anti-parallel symmetric reconnection entails two stages. First, the inflowing electrons are adiabatically trapped and energized by an ambipolar parallel electric field. Next, the…

Plasma Physics · Physics 2016-10-14 Ari Le , Jan Egedal , William Daughton

Electron heating and mixing during asymmetric reconnection are studied with a 3D kinetic simulation that matches plasma parameters from Magnetospheric Multiscale (MMS) spacecraft observations of a magnetopause diffusion region. The mixing…

Plasma Physics · Physics 2017-04-04 Ari Le , William Daughton , Li-Jen Chen , Jan Egedal

Magnetic reconnection in strongly magnetized (low-beta), weakly collisional plasmas is investigated using a novel fluid-kinetic model [Zocco & Schekochihin, Phys. Plasmas 18, 102309 (2011)] which retains non-isothermal electron kinetics. It…

Plasma Physics · Physics 2015-06-12 N. F. Loureiro , A. A. Schekochihin , A. Zocco

Magnetic reconnection and associated heating of ions and electrons in strongly magnetised, weakly collisional plasmas are studied by means of gyrokinetic simulations. It is shown that an appreciable amount of the released magnetic energy is…

Plasma Physics · Physics 2019-02-20 R. Numata , N. F. Loureiro

Gyrokinetic simulations of magnetic reconnection are presented to investigate plasma heating for strongly magnetized, weakly collisional plasmas. For a low plasma beta case, parallel and perpendicular phase mixing strongly enhance energy…

Plasma Physics · Physics 2015-04-14 Ryusuke Numata , Nuno F. Loureiro

The onset of the acceleration of ions during magnetic reconnection is explored via particle-in-cell simulations in the limit of a strong ambient guide field that self-consistently and simultaneously follow the motions of protons and…

Plasma Physics · Physics 2015-06-19 J. F. Drake , M. Swisdak

In systems accreting well below the Eddington rate, the plasma in the innermost regions of the disk is collisionless and two-temperature, with the ions hotter than the electrons. Yet, whether a collisionless faster-than-Coulomb energy…

High Energy Astrophysical Phenomena · Physics 2015-06-23 Lorenzo Sironi , Ramesh Narayan
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