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We report for the first time the intrinsically three-dimensional (3D) geometry of the magnetic reconnection process induced by ballooning instability in a generalized Harris sheet. The spatial distribution and structure of the…

Plasma Physics · Physics 2017-04-05 Ping Zhu , Amitava Bhattacharjee , Arash Sangari , Zechen Wang , Phillip Bonofiglo

We construct magnetostatic models of coronal loops in which the thermodynamics of the loop is fully consistent with the shape and geometry of the loop. This is achieved by treating the loop as a thin, compact, magnetic fibril that is a…

Solar and Stellar Astrophysics · Physics 2015-06-16 Bradley W. Hindman , Rekha Jain

Magnetic reconnection, or the ability of the magnetic field lines that are frozen in plasma to change their topology, is a fundamental problem of magnetohydrodynamics (MHD). We briefly examine the problem starting with the well-known…

Astrophysics · Physics 2009-11-07 A. Lazarian , J. Cho

We develop a first-principles scaling theory of the spreading of three-dimensional (3D) magnetic reconnection of finite extent in the out of plane direction. This theory addresses systems with or without an out of plane (guide) magnetic…

Plasma Physics · Physics 2021-08-25 Milton Arencibia , Paul A. Cassak , Michael A. Shay , Eric R. Priest

Fully kinetic simulations are applied to the study of 2D anti-parallel reconnection, elucidating the dynamics by which the electron fluid maintains force balance within both the electron diffusion region (EDR) and the ion diffusion region…

Plasma Physics · Physics 2023-06-16 J. Egedal , H. Gurram , S. Greess , W. Daughton , A. Lê

The squashing factor Q (Titov et al. 2002), a property of the magnetic field line mapping, has been suggested as an indicator for the formation of current sheets, and subsequently magnetic reconnection, in astrophysical plasmas. Here we…

Solar and Stellar Astrophysics · Physics 2015-05-13 A. L. Wilmot-Smith , G. Hornig , D. I. Pontin

We review the basic concepts of magnetic reconnection and propose a general framework for the astrophysical reconnection at large scales. Magnetic reconnection is the rearrangement of magnetic field topology. The conventional Sweet-Parker…

High Energy Astrophysical Phenomena · Physics 2018-06-18 Amir Jafari , Ethan Vishniac

Magnetotransport phenomena often provide critically important information about two-dimensional (2D) electron systems. For example, the independence of magneto-photo-resistance of 2D electrons in best-quality quantum wells on the…

Mesoscale and Nanoscale Physics · Physics 2025-07-11 P. S. Alekseev , A. P. Alekseeva

We present a detailed analysis of the properties of magnetic reconnection at large-scale current sheets in a high cadence version of the Lynch & Edmondson (2013) 2.5D MHD simulation of sympathetic magnetic breakout eruptions from a…

Solar and Stellar Astrophysics · Physics 2016-07-19 B. J. Lynch , J. K. Edmondson , M. D. Kazachenko , S. E. Guidoni

We study the linear and non-linear development of the Kruskal-Schwarzchild Instability in a relativisitically expanding striped wind. This instability is the generalization of Rayleigh-Taylor instability in the presence of a magnetic field.…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Ramandeep Gill , Jonathan Granot , Yuri Lyubarsky

Null and X-points are not themselves directly important to magnetic reconnection because distinguishable field lines do not approach them closely. Even in a collision-free plasma, magnetic field lines that approach each other on a scale…

Plasma Physics · Physics 2020-01-08 Allen H. Boozer

Separators, which are in many ways the three-dimensional equivalent to two-dimensional nulls, are important sites for magnetic reconnection. Magnetic reconnection occurs in strong current layers which have very short length scales. The aim…

Solar and Stellar Astrophysics · Physics 2014-12-17 J. E. H. Stevenson , C. E. Parnell , E. R. Priest , A. L. Haynes

Context. For the last thirty years, most of the studies on the relaxation of stressed magnetic fields in the solar environment have onlyconsidered the Lorentz force, neglecting plasma contributions, and therefore, limiting every equilibrium…

Solar and Stellar Astrophysics · Physics 2011-10-25 Jorge Fuentes-Fernández , Clare E. Parnell , Alan W. Hood

We investigate the onset of 2D time-dependent magnetic reconnection that is triggered using an external velocity driver located away from, and perpendicular to, an equilibrium Harris current sheet. Previous studies have typically utilised…

Solar and Stellar Astrophysics · Physics 2018-01-24 B. Snow , G. J. J. Botha , J. A. McLaughlin , A. Hillier

Reconnection physics at micro-scales is investigated in an electron magnetohydrodynamics frame. A new process of collapse of the neutral current sheet is demonstrated by means of analytical and numerical solutions. It shows how at scales…

Plasma Physics · Physics 2017-12-01 I F Shaikhislamov

We present the results of particle-in-cell numerical pair plasma simulations of relativistic 2D magnetostatic equilibria known as the 'ABC' fields. In particular, we focus on the lowest-order unstable configuration consisting of two minima…

High Energy Astrophysical Phenomena · Physics 2016-08-03 Krzysztof Nalewajko , Jonathan Zrake , Yajie Yuan , William E. East , Roger D. Blandford

Magnetic reconnection is a fundamental plasma process that alters the magnetic field topology and releases magnetic energy. Most numerical simulations and spacecraft observations assume a two-dimensional diffusion region, with the electron…

Space Physics · Physics 2026-04-24 Xinmin Li , Chuanfei Dong , Hantao Ji , Chi Zhang , Liang Wang , Barbara Giles , Hongyang Zhou , Rui Chen , Yi Qi

A method is described to model the magnetic field in the vicinity of constellations of multiple satellites using field and plasma current measurements. This quadratic model has the properties that the divergence is zero everywhere and…

Using the formulation of relativistic reconnection by Lyutikov & Uzdensky (2002) we estimate the upper possible rates of reconnection in pulsar winds using Bohm prescription for resistivity. We find that the velocity of plasma inflow into…

Astrophysics · Physics 2007-05-23 Maxim Lyutikov

The orientation and stability of the reconnection x-line in asymmetric geometry is studied using three-dimensional (3D) particle-in-cell simulations. We initiate reconnection at the center of a large simulation domain to minimize the…

Space Physics · Physics 2018-08-08 Yi-Hsin Liu , Michael Hesse , Tak Chu Li , Masha Kuznetsova , Ari Le