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We performed three dimensional resistive magnetohydrodynamic simulations to study the magnetic reconnection using an initially shearing magnetic field configuration (force free field with a current sheet in the middle of the computational…

Solar and Stellar Astrophysics · Physics 2015-05-27 R. L. Jiang , K. Shibata , H. Isobe , C. Fang

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…

Solar and Stellar Astrophysics · Physics 2021-06-09 Ting Li , Eric Priest , Ruilong Guo

We present the results of a set of three-dimensional numerical simulations of magnetic flux emergence from below the photosphere into the corona that include a uniform and horizontal coronal magnetic field mimicking a pre-existing…

Astrophysics · Physics 2009-11-10 K. Galsgaard , F. Moreno-Insertis , V. Archontis , A. Hood

Magnetic reconnection is a fundamental plasma process associated with conversion of the embedded magnetic field energy into kinetic and thermal plasma energy, via bulk acceleration and Ohmic dissipation. In many high-energy astrophysical…

Plasma Physics · Physics 2018-05-09 Longqing Yi , Baifei Shen , Alexander Pukhov , Tünde Fülöp

Transient collimated plasma ejections (jets) occur frequently throughout the solar corona, in active regions, quiet Sun, and coronal holes. Although magnetic reconnection is generally agreed to be the mechanism of energy release in jets,…

Solar and Stellar Astrophysics · Physics 2019-11-13 Pankaj Kumar , Judith T. Karpen , Spiro K. Antiochos , Peter F. Wyper , C. Richard DeVore

Magnetic reconnection is a fundamental process in a plasma that facilitates the release of energy stored in the magnetic field by permitting a change in the magnetic topology. In this article we present a review of the current state of…

Solar and Stellar Astrophysics · Physics 2012-07-04 D. I. Pontin

Using simulated data-driven three-dimensional resistive MHD simulations of the solar atmosphere, we show that magnetic reconnection can be responsible of the formation of jets with characteristic of Type II spicules. For this, we…

Solar and Stellar Astrophysics · Physics 2018-04-06 J. J. González-Avilés , F. S. Guzmán , V. Fedun , G. Verth , S. Shelyag , S. Regnier

We present EUV solar observations showing evidence for omnipresent jetting activity driven by small-scale magnetic reconnection at the base of the solar corona. We argue that the physical mechanism that heats and drives the solar wind at…

The solar atmosphere is full of complicated transients manifesting the reconfiguration of solar magnetic field and plasma. Solar jets represent collimated, beam-like plasma ejections; they are ubiquitous in the solar atmosphere and…

Solar and Stellar Astrophysics · Physics 2021-02-09 Yuandeng Shen

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…

Solar and Stellar Astrophysics · Physics 2015-10-28 T. Shimizu

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…

Solar and Stellar Astrophysics · Physics 2015-05-30 J. Y. Ding , M. S. Madjarska , J. G. Doyle , Q. M. Lu , K. Vanninathan , Z. Huang

We present the results of numerical simulations of wave-induced magnetic reconnection in a model of the solar atmosphere. In the magnetic field geometry we study in this article, the waves, driven by a monochromatic piston and a driver…

Solar and Stellar Astrophysics · Physics 2009-08-11 L. Heggland , B. De Pontieu , V. H. Hansteen

Solid evidence of magnetic reconnection is rarely reported within sunspots, the darkest regions with the strongest magnetic fields and lowest temperatures in the solar atmosphere. Using the world's largest solar telescope, the 1.6-meter…

Magnetic reconnection, a plasma process converting magnetic energy to particle kinetic energy, is often invoked to explain magnetic energy releases powering high-energy flares in astrophysical sources including pulsar wind nebulae and black…

High Energy Astrophysical Phenomena · Physics 2021-12-17 Gregory R. Werner , Dmitri A. Uzdensky

Within the framework of resistive MHD, implementing the C7 equilibrium atmosphere model and a 3D potential magnetic field realistic configuration, we simulate the formation of a plasm jet with the morphology, upward velocity up to 130 km/s…

Solar and Stellar Astrophysics · Physics 2020-05-29 J. J. González-Avilés , F. S. Guzmán , V. Fedun , G. Verth , R. Sharma , S. Shelyag , S. Regnier

We study the emergence of a toroidal flux tube into the solar atmosphere and its interaction with a pre-existing field of an active region. We investigate the emission of jets as a result of repeated reconnection events between colliding…

Solar and Stellar Astrophysics · Physics 2010-03-12 V. Archontis , K. Tsinganos , C. Gontikakis

Hinode observations have revealed intermittent recurrent plasma ejections/jets in the chromosphere. These are interpreted as a result of non-perfectly anti-parallel magnetic reconnection, i.e. component reconnection, between a twisted…

Solar and Stellar Astrophysics · Physics 2015-06-23 N. Nishizuka , Y. Hayashi , H. Tanabe , A. Kuwahata , Y. Kaminou , Y. Ono , M. Inomoto , T. Shimizu

We show how the conversion of magnetic field energy via magnetic reconnection can progress in a fully three-dimensional, fast, volume-filling regime. An initial configuration representative of many laboratory, space and astrophysical…

Solar and Stellar Astrophysics · Physics 2015-05-27 Giovanni Lapenta , Lapo Bettarini

The magnetic field in many astrophysical plasmas -- such as the Solar corona and Earth's magnetosphere -- has been shown to have a highly complex, three-dimensional structure. Recent advances in theory and computational simulations have…

Solar and Stellar Astrophysics · Physics 2015-05-20 D. I. Pontin

Jet phenomena with a bright loop in their footpoint, called anemone jets, have been observed in the solar corona and chromosphere. These jets are formed as a consequence of magnetic reconnection, and from the scale universality of…

Solar and Stellar Astrophysics · Physics 2020-07-22 Yuji Kotani , Kazunari Shibata
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