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相关论文: Collisionless magnetic field reconnection from fir…

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The superconductivity of quasi-one-dimensional electrons in the magnetic field is studied. The system is described as the one-dimensional electrons with no frustration due to the magnetic field. The interaction is assumed to be attractive…

凝聚态物理 · 物理学 2009-10-28 Yasumasa Hasegawa , Mitake Miyazaki

The reversibility of the transfer of energy from the magnetic field to the surrounding plasma during magnetic reconnection is examined. Trajectories of test particles in an analytic model of the fields demonstrate that irreversibility is…

等离子体物理 · 物理学 2021-09-22 M. Xuan , M. Swisdak , J. F. Drake

We consider fast magnetic reconnection that takes place within turbulent magnetic flux and show that the process results in diffusion of magnetic fields and matter, which we term reconnection diffusion. The process of reconnection diffusion…

星系天体物理 · 物理学 2013-04-12 A. Lazarian

Context. We introduce a model for including accelerated particles in pure magnetohydrodynamics (MHD) simulations of the solar atmosphere. Aims. We show that the method is viable and produces results that enhance the realism of MHD…

太阳与恒星天体物理 · 物理学 2018-12-05 Helle Bakke , Lars Frogner , Boris Vilhelm Gudiksen

We demonstrate that long-ranged terrestrial electric fields can be used to exclude or discover ultralight bosonic particles with extremely small charge, beyond that probed by astrophysics. Bound condensates of scalar millicharged particles…

高能物理 - 唯象学 · 物理学 2024-04-26 Asher Berlin , Roni Harnik , Ying-Ying Li , Bin Xu

Magnetic reconnection in relativistic collisionless plasmas can accelerate particles and power high-energy emission in various astrophysical systems. Whereas most previous studies focused on relativistic reconnection in pair plasmas, less…

高能天体物理现象 · 物理学 2017-12-27 G. R. Werner , D. A. Uzdensky , M. C. Begelman , B. Cerutti , K. Nalewajko

Experimental asymmetries in fusion implosions can lead to magnetic field generation in the hot plasma core. For typical parameters, previous studies found that the magnetisation Hall parameter, given by the product of the electron…

等离子体物理 · 物理学 2021-03-17 James D. Sadler , Hui Li , Kirk A. Flippo

Magnetic reconnection in relativistic plasmas is well established as a fast and efficient particle accelerator, capable of explaining the most dramatic astrophysical flares. With particle-in-cell simulations, we demonstrate the importance…

高能天体物理现象 · 物理学 2022-04-20 Lorenzo Sironi

Recent experiments have observed magnetic reconnection in high-energy-density, laser-produced plasma bubbles, with reconnection rates observed to be much higher than can be explained by classical theory. Based on fully kinetic particle…

等离子体物理 · 物理学 2015-05-27 W. Fox , A. Bhattacharjee , K. Germaschewski

Binary collisions between ions and electrons in an external magnetic field are considered in second-order perturbation theory, starting from the unperturbed helical motion of the electrons. The calculations are done with the help of an…

等离子体物理 · 物理学 2007-05-23 Hrachya B. Nersisyan

Magnetic field reconnection is often invoked to explain electromagnetic energy conversion in planetary magnetospheres, stellar coronae, and other astrophysical objects. Because of the huge dynamic range of magnetic fields in these bodies,…

太阳与恒星天体物理 · 物理学 2015-05-19 Forrest S. Mozer , Arthur Hull

Here is reported in situ observation of energetic electrons (~100-500 keV) associated with magnetic reconnection in the solar wind by the ACE and Wind spacecraft. The properties of this magnetic cloud driving reconnection and the associated…

空间物理 · 物理学 2012-06-26 Y. Wang , F. S. Wei , X. S. Feng , S. H. Zhang , P. B. Zuo , T. R. Sun

Magnetic reconnection is an explosive energy release event. It plays an important role in accelerating particles to high non-thermal energies. These particles often exhibit energy spectra characterized by a power-law distribution. However,…

Magnetic-field reconnection is believed to play a fundamental role in magnetized plasma systems throughout the Universe1, including planetary magnetospheres, magnetars and accretion disks around black holes. This letter present extreme…

太阳与恒星天体物理 · 物理学 2015-02-06 Yang Su , Astrid M. Veronig , Gordon D. Holman , Brian R. Dennis , Tongjiang Wang , Manuela Temmer , Weiqun Gan

It is well known that when two types of perturbations interact in cosmological perturbation theory, the interaction may lead to the generation of a third type. In this article we discuss the generation of magnetic fields from such…

广义相对论与量子宇宙学 · 物理学 2014-03-24 Bob Osano

Magnetic reconnection is a fundamental process in a laboratory, magnetospheric, solar and astrophysical plasma, whereby magnetic energy is converted into heat, bulk kinetic energy and fast particle energy. Its nature in two dimensions is…

太阳与恒星天体物理 · 物理学 2021-06-09 Ting Li , Eric Priest , Ruilong Guo

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…

等离子体物理 · 物理学 2015-06-12 N. F. Loureiro , A. A. Schekochihin , A. Zocco

We analyze a high-resolution simulation of magnetopause reconnection observed by the Magnetospheric Multiscale (MMS) mission and explain the occurrence of strongly localized dissipation with an amplitude more than an order of magnitude…

空间物理 · 物理学 2018-07-25 M. Swisdak , J. F. Drake , L. Price , J. L. Burch , P. A. Cassak , T. -D. Phan

The diffusion of astrophysical magnetic fields in conducting fluids in the presence of turbulence depends on whether magnetic fields can change their topology or reconnect in highly conducting media. Recent progress in understanding fast…

星系天体物理 · 物理学 2010-03-16 A. Lazarian , R. Santos-Lima , E. Gouveia Dal Pino

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…

天体物理仪器与方法 · 物理学 2015-05-14 H. Ji , Y. Ren , M. Yamada , S. Dorfman , W. Daughton , S. P. Gerhardt