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Related papers: Magnetic Reconnection by a Self-Retreating X-Line

200 papers

We perform a theoretical and numerical study of anti-parallel 2D magnetic reconnection with asymmetries in the density and reconnecting magnetic field strength in addition to a bulk flow shear across the reconnection site in the plane of…

Space Physics · Physics 2015-11-04 C. E. Doss , C. M. Komar , P. A. Cassak , F. D. Wilder , S. Eriksson , J. F. Drake

In magnetized astrophysical outflows, the dissipation of field energy into particle energy via magnetic reconnection is often invoked to explain the observed non-thermal signatures. By means of two- and three-dimensional particle-in-cell…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Lorenzo Sironi , Anatoly Spitkovsky

Two cases of weakly and strongly stressed X-point collapse were considered. Here descriptors weakly and strongly refer to 20 % and 124 % unidirectional spatial compression of the X-point, respectively. In the weakly stressed case, the…

Astrophysics · Physics 2008-08-11 D. Tsiklauri , T. Haruki

Magnetic reconnection requires the violation of the frozen-in condition which ties gyrating charged particles to the magnetic field inhibiting diffusion. Ongoing reconnection has been identified in near-Earth space as being responsible for…

Space Physics · Physics 2014-01-24 R. A. Treumann , W. Baumjohann

Detailed comparisons are reported between laboratory observations of electron-scale dissipation layers near a reconnecting X-line and direct two-dimensional full-particle simulations. Many experimental features of the electron layers, such…

Instrumentation and Methods for Astrophysics · Physics 2015-05-14 H. Ji , Y. Ren , M. Yamada , S. Dorfman , W. Daughton , S. P. Gerhardt

Simulations of antiparallel reconnection have shown collimated electron jets outflowing from the x-point, and associated highly elongated "outer electron diffusion regions." New PIC simulations with ion/electron mass ratios as large as 1836…

Plasma Physics · Physics 2015-05-20 Martin Goldman , Giovanni Lapenta , David Newman , Stefan Markidis , Haihong Che

Using fully kinetic simulations, we study the x-line orientation of magnetic reconnection in an asymmetric configuration. A spatially localized perturbation is employed to induce a single x-line, that has sufficient freedom to choose its…

Space Physics · Physics 2015-11-04 Yi-Hsin Liu , Michael Hesse , Masha Kuznetsova

Using a recently developed analytical procedure, we determine the rate of magnetic reconnection in the "standard" model of eruptive solar flares. During the late phase, the neutral line is located near the lower tip of the reconnection…

Solar and Stellar Astrophysics · Physics 2018-05-23 Terry G. Forbes , Daniel B. Seaton , Katharine K. Reeves

We present two-dimensional resistive magnetohydrodynamic simulations of line-tied asymmetric magnetic reconnection in the context of solar flare and coronal mass ejection current sheets. The reconnection process is made asymmetric along the…

Solar and Stellar Astrophysics · Physics 2015-06-04 N. A. Murphy , M. P. Miralles , C. L. Pope , J. C. Raymond , H. D. Winter , K. K. Reeves , D. B. Seaton , A. A. van Ballegooijen , J. Lin

Magnetic field lines are quantum objects carrying one quantum $\Phi_0=2\pi\hbar/e$ of magnetic flux and have finite radius $\lambda_m$. Here we argue that they possess a very specific dynamical interaction. Parallel field lines reject each…

High Energy Astrophysical Phenomena · Physics 2018-01-17 R. A. Treumann , W. Baumjohann , W. D. Gonzalez

The rate of magnetic reconnection is of the utmost importance in a variety of processes because it controls, for example, the rate energy is released in solar flares, the speed of the Dungey convection cycle in Earth's magnetosphere, and…

Plasma Physics · Physics 2022-04-29 Yi-Hsin Liu , Paul Cassak , Xiaocan Li , Michael Hesse , Shan-Chang Lin , Kevin Genestreti

A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field…

Plasma Physics · Physics 2018-06-13 Yi-Hsin Liu , M. Hesse , P. A. Cassak , M. A. Shay , S. Wang , L. -J. Chen

The debate surrounding fast magnetic energy dissipation by magnetic reconnection has remained a fundamental topic in the plasma universe, not only in the Earth's magnetosphere but in astrophysical objects such as pulsar magnetospheres and…

High Energy Astrophysical Phenomena · Physics 2021-06-22 Masahiro Hoshino

The structure of the diffusion regions in antiparallel magnetic reconnection is investigated by means of a theory and a Vlasov simulation. The magnetic diffusion is considered as relaxation to the frozen-in state, which depends on a…

Solar and Stellar Astrophysics · Physics 2014-03-31 Seiji Zenitani , Takayuki Umeda

A new look at the structure of the electron diffusion region in collisionless magnetic reconnection is presented. The research is based on a particle-in-cell simulation of asymmetric magnetic reconnection, which include a temperature…

The spectral properties associated with laminar, anti-parallel reconnection are examined using a 2.5D kinetic particle in cell (PIC) simulation. Both the reconnection rate and the energy spectrum exhibit three distinct phases: an initiation…

Analytical theory of fast magnetic reconnection with a large guide field is presented for the first time. We confirm that two distinct reconnection regimes are possible depending on whether the diffusion region thickness $\delta$ is larger…

Plasma Physics · Physics 2010-01-12 Andrei N. Simakov , L. Chacón , A. Zocco

Kinetic aspects of the ion current layer at the center of a reconnection outflow exhaust near the X-type region are investigated by a two-dimensional particle-in-cell (PIC) simulation. The layer consists of magnetized electrons and…

Solar and Stellar Astrophysics · Physics 2014-11-06 Seiji Zenitani , Iku Shinohara , Tsugunobu Nagai , Tomohide Wada

Magnetic reconnection in the partially ionized solar chromosphere is studied in 2.5-dimensional magnetohydrodynamic simulations including radiative cooling and ambipolar diffusion. A Harris current sheet with and without a guide field is…

Solar and Stellar Astrophysics · Physics 2015-09-24 Lei Ni , Bernhard Kliem , Jun Lin , Ning Wu

We present a study of collisionless magnetic reconnection within the framework of full two-fluid MHD for a completely ionized hydrogen plasma, retaining the effects of the Hall current, electron pressure and electron inertia. We performed…

Plasma Physics · Physics 2015-06-18 N. Andrés , L. Martin , P. Dmitruk , D. Gómez