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相关论文: Energetic Electrons Associated with Magnetic Recon…

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Magnetic reconnection is believed to be the prime mechanism to trigger solar flares and accelerate electrons up to energies of MeV. In the classical two-dimensional reconnection model, the separation motion of chromospheric ribbons…

太阳与恒星天体物理 · 物理学 2011-02-11 Chang Liu , Haimin Wang

Magnetic reconnection, the central engine that powers explosive phenomena throughout the Universe, is also perceived as one of the principal mechanisms for accelerating particles to high energies. Although various signatures of magnetic…

Magnetic reconnection is invoked as one of the primary mechanisms to produce energetic particles. We employ large-scale three-dimensional (3D) particle-in-cell simulations of reconnection in magnetically-dominated ($\sigma=10$) pair plasmas…

高能天体物理现象 · 物理学 2021-12-15 Hao Zhang , Lorenzo Sironi , Dimitrios Giannios

Magnetic reconnection is a ubiquitous plasma phenomenon that plays a critical role in particle heating and energization. During reconnection, the topology of magnetic field rearranges, depositing energy into the surrounding plasma through…

The influence of the gravity acceleration on the regularized energy-momentum tensor of the quantized electromagnetic field between two plane parallel conducting plates is derived. We use Fermi coordinates and work to first order in the…

高能物理 - 理论 · 物理学 2014-11-18 Giuseppe Bimonte , Enrico Calloni , Giampiero Esposito , Luigi Rosa

Magnetic reconnection is commonly perceived to drive flow and particle acceleration in flares of solar, stellar, and astrophysical disk coronae but the relative roles of different acceleration mecha- nisms in a given reconnection…

高能天体物理现象 · 物理学 2015-05-28 Jared C. Workman , Eric G. Blackman , Chuang Ren

Increases of ion fluxes in the keV-MeV range are sometimes observed near the heliospheric current sheet (HCS) during periods when other sources are absent. These resemble solar energetic particle (SEP) events, but the events are weaker and…

等离子体物理 · 物理学 2015-09-21 O. Khabarova , G. P. Zank , G. Li , J. A. le Roux , G. M. Webb , A. Dosch , O. E. Malandraki

The planet Mercury possesses a small but highly dynamic magnetosphere in which the role and dynamics of electrons are still largely unknown. We aim at modeling the global dynamics of solar wind electrons impinging on Mercury's…

Our numerical simulations show that the reconnection of magnetic field becomes fast in the presence of weak turbulence in the way consistent with the Lazarian and Vishniac (1999) model of fast reconnection. We trace particles within our…

星系天体物理 · 物理学 2015-05-18 A. Lazarian , G. Kowal , E. Vishniac , E. de Gouveia dal Pino

A laser-driven azimuthal plasma magnetic field is known to facilitate electron energy gain from the irradiating laser pulse. The enhancement is due to changes in the orientation between the laser electric field and electron velocity caused…

等离子体物理 · 物理学 2020-05-19 Tao Wang , Zheng Gong , Alexey Arefiev

Supported by a kinetic simulation, we derive an exclusion energy parameter $\cal{E}_X$ providing a lower kinetic energy bound for an electron to cross from one inflow region to the other during magnetic reconnection. As by a Maxwell Demon,…

In recent work we suggested that photons of energy >100 MeV detected from GRBs by the Fermi Satellite are produced via synchrotron emission in the external forward shock with a weak magnetic field - consistent with shock compressed upstream…

高能天体物理现象 · 物理学 2015-05-18 Rodolfo Barniol Duran , Pawan Kumar

Electron heating/acceleration in the foreshock, by which electrons may be energized beyond thermal energies prior to encountering the bow shock, is very important for the bow shock dynamics. And then these electrons would be more easily…

等离子体物理 · 物理学 2021-12-01 K. Jiang , S. Y. Huang , H. S. Fu , Z. G. Yuan , X. H. Deng , Z. Wang , Z. Z. Guo , S. B. Xu , Y. Y. Wei , J. Zhang , Z. H. Zhang , Q. Y. Xiong , L. Yu

The gamma-ray space telescopes AGILE and Fermi detected short and bright synchrotron gamma-ray flares at photon energies above 100 MeV in the Crab Nebula. This discovery suggests that electron-positron pairs in the nebula are accelerated to…

高能天体物理现象 · 物理学 2015-05-30 Benoit Cerutti , Dmitri A. Uzdensky , Mitchell C. Begelman

Recent studies have indicated that cosmic ray acceleration by a first-order Fermi process in magnetic reconnection current sheets can be efficient enough in the surrounds of compact sources. In this work, we discuss this acceleration…

高能天体物理现象 · 物理学 2015-02-17 Behrouz Khiali , Elisabete M. de Gouveia Dal Pino , Maria V. del Valle

We aim at investigating the formation of jet-like features in the lower solar atmosphere, e.g. chromosphere and transition region, as a result of magnetic reconnection. Magnetic reconnection as occurring at chromospheric and transition…

太阳与恒星天体物理 · 物理学 2015-05-30 J. Y. Ding , M. S. Madjarska , J. G. Doyle , Q. M. Lu , K. Vanninathan , Z. Huang

Earth's magnetotail is an excellent laboratory to study the interplay of reconnection and turbulence in determining electron energization. The process of formation of a power law tail during turbulent reconnection is a documented fact still…

等离子体物理 · 物理学 2020-12-30 Giovanni Lapenta , Jean Berchem , Mostafa El Alaoui , Raymond Walker

Magnetic reconnection plays a crucial role in violent energy conversion occurring in the environments of high electrical conductivity, such as the solar atmosphere, magnetosphere, and fusion devices. We focus on the morphological features…

天体物理学 · 物理学 2009-11-13 J. Lin , S. R. Cranmer , C. J. Farrugia

We examine the physical implications of the centrifugal and gravitational electromotive forces on magnetic reconnection in a Kerr black hole background. We find that both forces increase the reconnection rate, though the underlying…

高能天体物理现象 · 物理学 2026-04-13 Zhong-Ying Fan , Fan Zhou , Yuehang Li , Minyong Guo , Bin Chen

The manuscript deals with electron acceleration by a laser pulse in a plasma with a static uniform magnetic field $B_*$. The laser pulse propagates perpendicular to the magnetic field lines with the polarization chosen such that…

等离子体物理 · 物理学 2020-04-08 A. Arefiev , Z. Gong , A. P. L. Robinson