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The outer solar atmosphere, i.e., the corona and the chromosphere, is replete with small energy-release events, which are accompanied by transient brightening and jet-like ejections. These events are considered to be magnetic reconnection…

太阳与恒星天体物理 · 物理学 2015-10-28 T. Shimizu

Supermassive binary black holes in galactic centers are potential multimessenger sources in gravitational waves and electromagnetic radiation. To find such objects, isolating unique electromagnetic signatures of their accretion flow is key.…

高能天体物理现象 · 物理学 2025-09-23 Sean M. Ressler , Luciano Combi , Bart Ripperda , Elias R. Most

In the present work one- and two-photon pair production in a subcritical magnetic field have been considered. Two-photon production has been studied in the resonant case, when the cross section considerably increases compared to the…

高能物理 - 唯象学 · 物理学 2017-02-14 M. M. Diachenko , O. P. Novak , R. I. Kholodov

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…

Active galactic nuclei often exhibit highly collimated relativistic plasma outflows launched from the vicinity of their central black holes. One of the key theoretical challenges in understanding black hole jet formation is the origin of…

高能天体物理现象 · 物理学 2026-05-05 Rin Oikawa , Kenji Toma , Shigeo S. Kimura

Plasmoid-driven magnetic reconnection in elongated current sheets is suspected to be an ubiquitous phenomenon in space and astrophysical plasmas, but the mechanisms driving its onset and dynamics are still debated. Deciphering the physical…

Synchrotron radiation of ultra-relativistic particles accelerated in a pulsar wind nebula may dominate its spectrum up to gamma-ray energies. Because of the short cooling time of the gamma-ray emitting electrons, the gamma-ray emission zone…

高能天体物理现象 · 物理学 2012-03-20 A. M. Bykov , G. G. Pavlov , A. V. Artemyev , Yu. A. Uvarov

Relativistic Sweet-Parker type magnetic reconnection is investigated by relativistic resistive magnetohydrodynamic (RRMHD) simulations. As an initial setting, we assume anti-parallel magnetic fields and a spatially uniform resistivity. A…

高能天体物理现象 · 物理学 2015-05-30 Hiroyuki R. Takahashi , Takahiro Kudoh , Youhei Masada , Jin Matsumoto

We present a one-fluid pair plasma magnetohydrodynamical model for asymmetric relativistic magnetic reconnection that incorporates the thermal-inertial effects of the plasma. We find the general scaling relation for the reconnection rate in…

等离子体物理 · 物理学 2025-03-12 Maricarmen A. Winkler , Felipe A. Asenjo

Synchronization is a fundamental phenomenon in dynamical systems, occurring in a wide range of contexts such as mechanical, chemical, biological, and social systems. In this work, we explore a novel manifestation of synchronization in…

适应与自组织系统 · 物理学 2026-02-09 C. Evain , A. -A. Diallo , E. Roussel , C. Szwaj , M. Herda , M. -A. Tordeux , F. Ribeiro , M. Labat , N. Hubert , J. -B. Brubach , P. Roy , S. Bielawski

Magnetic reconnection is an important physical process in various explosive phenomena in the universe. In the previous studies, it was found that fast re- connection takes place when the thickness of a current sheet becomes on the order of…

太阳与恒星天体物理 · 物理学 2015-07-15 Satoshi Takeshige , Shinsuke Takasao , Kazunari Shibata

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

The twisted magnetospheres of magnetars must sustain a persistent flow of electron-positron plasma. The flow dynamics is controlled by the radiation field around the hot neutron star. The problem of plasma motion in the self-consistent…

高能天体物理现象 · 物理学 2015-06-11 Andrei M. Beloborodov

Relativistic magnetic reconnection events can widely exist in magnetized plasmas in astrophysical systems. During this process, oppositely directed magnetic field lines reconnect and release magnetic energy, efficiently accelerating…

高能天体物理现象 · 物理学 2018-08-08 Haocheng Zhang , Xiaocan Li , Fan Guo , Dimitrios Giannios

We study the stability of a collisionless, relativistic, finite-strength, cylindrical layer of charged particles in free space by solving the linearized Vlasov-Maxwell equations and compute the power of the emitted electromagnetic waves.…

天体物理学 · 物理学 2007-05-23 Bjoern S. Schmekel , Richard V. E. Lovelace , Ira M. Wasserman

Understanding, manipulating, and using magnons - the quanta of spin waves - for energy-efficient applications is one of the primary goals of magnonics. In this paper, we consider a synthetic antiferromagnet in which one of the ferromagnetic…

介观与纳米尺度物理 · 物理学 2024-06-10 Artim L. Bassant , Mexx E. Y. Regout , Joren S. Harms , Rembert A. Duine

(Abridged) We constrain simulated all-sky maps in total intensity, linear polarization, and rotation measure (RM) by observations. We test a number of large-scale magnetic field configurations and take the properties of the warm…

天体物理学 · 物理学 2009-11-13 X. H. Sun , W. Reich , A. Waelkens , T. Enßlin

In order to understand the nature of magnetic reconnection in ``free space'' which is free from any influence of external circumstances, I have studied the structure of spontaneous reconnection outflow using a shock tube approximation. The…

天体物理学 · 物理学 2009-11-10 Shin-ya Nitta

It is pointed, that effects of refraction of electromagnetic radiation in the medium, formed by the magnetized vacuum, become essential already for relatively soft photons, not hard enough to create an electron-positron pair, including…

高能物理 - 理论 · 物理学 2007-05-23 A. E. Shabad

Oscillatory reconnection is a specific type of time-dependent reconnection which involves periodic changes in the magnetic topology of a null point. The mechanism has been reported for a variety of magnetic field strengths and…

太阳与恒星天体物理 · 物理学 2024-10-25 Luiz A. C. A. Schiavo , Gert J. J. Botha , James A. McLaughlin