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Related papers: Radiative Magnetic Reconnection in Astrophysics

200 papers

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

Turbulence is ubiquitous in astrophysics. It radically changes many astrophysical phenomena, in particular, the propagation and acceleration of cosmic rays. We present the modern understanding of compressible magnetohydrodynamic (MHD)…

Solar and Stellar Astrophysics · Physics 2015-06-12 A. Lazarian , L. Vlahos , G. Kowal , H. Yan , A. Beresnyak , E. de Gouveia Dal Pino

Magnetic reconnection is a pivotal mechanisms in the energization and heating of cosmic plasmas, yet the exact process of energy transfer during these events remain elusive. Traditional models, which focus on acoustic and…

Solar and Stellar Astrophysics · Physics 2025-04-29 Anil Raghav , Ajay Kumar , Mariyam Karari , Shubham Kadam , Kalpesh Ghag , Kishor Kumbhar , Omkar Dhamane

Major scientific questions and research opportunities are described on 10 unprioritized plasma astrophysics topics: (1) magnetic reconnection, (2) collisionless shocks and particle acceleration, (3) waves and turbulence, (4) magnetic…

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…

Solar and Stellar Astrophysics · Physics 2015-02-06 Yang Su , Astrid M. Veronig , Gordon D. Holman , Brian R. Dennis , Tongjiang Wang , Manuela Temmer , Weiqun Gan

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…

Plasma Physics · Physics 2021-09-22 M. Xuan , M. Swisdak , J. F. Drake

Astrophysical fluids are generically turbulent and this must be taken into account for most transport processes. We discuss how the preexisting turbulence modifies magnetic reconnection and how magnetic reconnection affects the MHD…

Astrophysics of Galaxies · Physics 2015-06-03 A. Lazarian , G. Eyink , E. Vishniac

A broad variety of observational methods allows us to see the effect of magnetic reconnection in high-temperature strongly-magnetized plasma of the solar corona. Some specific features of the large-scale reconnection in large solar flares…

Solar and Stellar Astrophysics · Physics 2011-02-23 B. V. Somov , S. I. Bezrodnykh , L. S. Ledentsov

Relativistic magnetic reconnection is a powerful agent through which magnetic energy can be tapped in astrophysics, energizing particles that then produce observed radiation. In some systems, the highest energy photons come from particles…

High Energy Astrophysical Phenomena · Physics 2021-10-04 J. M. Mehlhaff , G. R. Werner , D. A. Uzdensky , M. C. Begelman

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

Magnetic reconnection occurs when two plasmas having co-planar but anti-parallel magnetic fields meet. At the contact point, the field is locally annihilated and the magnetic energy can be released into the surrounding plasma. Theory and…

Magnetic reconnection is a ubiquitous plasma process in which oppositely directed magnetic field lines break and rejoin, resulting in a change of the magnetic field topology. Reconnection generates magnetic islands: regions enclosed by…

Plasma Physics · Physics 2020-10-06 Divya Banesh , Li-Ta Lo , Patrick Kilian , Fan Guo , Bernd Hamann

As a fundamental process converting magnetic to plasma energy in high-energy astrophysical plasmas, relativistic magnetic reconnection is a leading explanation for the acceleration of particles to the ultrarelativistic energies necessary to…

High Energy Astrophysical Phenomena · Physics 2017-07-26 Gregory R. Werner , Dmitri A. Uzdensky

Astrophysical fluids are generically turbulent, which means that frozen-in magnetic fields are, at least, weakly stochastic. Therefore realistic studies of astrophysical magnetic reconnection should include the effects of stochastic…

Astrophysics · Physics 2008-12-31 A. Lazarian , E. Vishniac , G. Kowal

One of the fundamental properties of astrophysical magnetic fields is their ability to change topology through reconnection and in doing so, to release magnetic energy, sometimes violently. In this work, we review recent results on the role…

High Energy Astrophysical Phenomena · Physics 2015-05-18 E. M. de Gouveia Dal Pino , G. Kowal , L. H. S. Kadowaki , P. Piovezan , A. Lazarian

Magnetic reconnection has long been known to be the most important mechanism not only for mixing the plasmas by changing the magnetic field topology but also for releasing the magnetic field energy into the plasma kinetic energy. During…

High Energy Astrophysical Phenomena · Physics 2024-04-25 Masahiro Hoshino

The magnetic reconnection process is analyzed for relativistic magnetohydrodynamical plasmas around rotating black holes. A simple generalization of the Sweet-Parker model is used as a first approximation to the problem. The reconnection…

High Energy Astrophysical Phenomena · Physics 2017-02-03 Felipe A. Asenjo , Luca Comisso

Magnetic reconnection is an important source of energetic particles in systems ranging from astrophysics to the laboratory. The large separation of spatiotemporal scales involved makes it critical to determine the minimum physical model…

The nonthermal particle acceleration during magnetic reconnection remains a fundamental topic in several astrophysical phenomena, such as solar flares, pulsar wind, magnetars, etc, for more than half a century, and one of the unresolved…

High Energy Astrophysical Phenomena · Physics 2022-04-15 Masahiro Hoshino

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…

High Energy Astrophysical Phenomena · Physics 2021-12-15 Hao Zhang , Lorenzo Sironi , Dimitrios Giannios