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Coronal-hole jets occur ubiquitously in solar coronal holes, at EUV and X-ray bright points associated with intrusions of minority magnetic polarity. The embedded-bipole model for these jets posits that they are driven by explosive, fast…

Solar and Stellar Astrophysics · Physics 2017-01-11 J. T. Karpen , C. R. DeVore , S. K. Antiochos , E. Pariat

Context. Solar blowout jets are a distinct subclass of ubiquitous extreme-ultraviolet (EUV) and X-ray coronal jets. Aims. Most existing models of blowout jets prescribe an initial magnetic field configurations and apply ad-hoc changes in…

Solar and Stellar Astrophysics · Physics 2026-02-11 Yajie Chen , Hardi Peter , Damien Przybylski , Lakshmi Pradeep Chitta , Sudip Mandal

Coronal jets are the captivating eruptions which are often found in the solar atmosphere, and primarily formed due to magnetic reconnection. Despite their short-lived nature and lower energy compared to many other eruptive events, e.g.…

Solar and Stellar Astrophysics · Physics 2024-09-06 Sushree S Nayak , Samrat Sen , Arpit Kumar Shrivastav , R. Bhattacharyya , P. S. Athiray

The collision of magnetic reconnection jets is studied by means of a three dimensional numerical simulation at kinetic scale, in the presence of a strong guide field. We show that turbulence develops due to the jets collision producing…

Solar and Stellar Astrophysics · Physics 2018-11-07 F. Pucci , W. H. Matthaeus , A. Chasapis , S. Servidio , L. Sorriso-Valvo , V. Olshevsky , D. L. Newman , M. V. Goldman , G. Lapenta

Transverse oscillatory motions and recurrence behavior in the chromospheric jets observed by Hinode/SOT are studied. A comparison is considered with the behavior that was noticed in coronal X-ray jets observed by Hinode/XRT. A jet like…

Solar and Stellar Astrophysics · Physics 2023-08-15 Ehsan Tavabi , Serge Koutchmy

Observations of reconnection jets in the solar corona are emerging as a possible diagnostic to study highly elusive coronal heating. Such nanojets can be observed in coronal loops and they have been linked to nanoflares. However, while…

Solar and Stellar Astrophysics · Physics 2021-12-22 Paolo Pagano , Patrick Antolin , Antonio Petralia

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

We study the formation of coronal jets through numerical simulation of the emergence of a twisted magnetic flux rope into a pre-existing open magnetic field. Reconnection inside the emerging flux rope in addition to that between the…

Solar and Stellar Astrophysics · Physics 2015-06-19 Fang Fang , Yuhong Fan , Scott W. McIntosh

Jets often have a helical structure containing ejected plasma that is both hot and also cooler and denser than the corona. Various mechanisms have been proposed to explain how jets are primarily attributed to a magnetic reconnection between…

Solar and Stellar Astrophysics · Physics 2020-10-21 Reetika Joshi , Brigitte Schmieder , Guillaume Aulanier , Véronique Bommier , Ramesh Chandra

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

With the observations from the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager (HMI) aboard the \emph{Solar Dynamics Observatory}, we investigate the coronal hole boundaries (CHBs) of an equatorial extension of…

Solar and Stellar Astrophysics · Physics 2015-05-27 Shuhong Yang , Jun Zhang , Ting Li , Yang Liu

A statistical relationship between magnetic reconnection, current sheets and intermittent turbulence in the solar wind is reported for the first time using in-situ measurements from the Wind spacecraft at 1 AU. We identify intermittency as…

Space Physics · Physics 2015-06-19 K. T. Osman , W. H. Matthaeus , J. T. Gosling , A. Greco , S. Servidio , B. Hnat , S. C. Chapman , T. D. Phan

Coronal jets are observed above minority polarity intrusions throughout the solar corona. Some of the most energetic occur on the periphery of active regions where the magnetic field is strongly inclined. These jets exhibit a non-radial…

Solar and Stellar Astrophysics · Physics 2019-10-09 Peter F. Wyper , C. Richard DeVore , Spiro K. Antiochos

Magnetic reconnection is a fundamental process in space and astrophysical plasmas in which oppositely directed magnetic fields changes its connectivity and eventually converts its energy into kinetic and thermal energy of the plasma.…

Solar and Stellar Astrophysics · Physics 2010-12-20 Rong Lin Jiang , Kazunari Shibata , Hiroaki Isobe , Cheng Fang

A three-dimensional numerical experiment of the launching of a hot and fast coronal jet followed by several violent eruptions is analyzed in detail. These events are initiated through the emergence of a magnetic flux rope from the solar…

Solar and Stellar Astrophysics · Physics 2015-06-15 Fernando Moreno-Insertis , Klaus Galsgaard

Coronal jets and bright points occur prolifically in predominantly unipolar magnetic regions, such as coronal holes, where they appear above minority-polarity intrusions. Intermittent low-level reconnection and explosive,…

Solar and Stellar Astrophysics · Physics 2018-09-19 Peter F. Wyper , C. Richard DeVore , Judy T. Karpen , Spiro K. Antiochos , Anthony R. Yeates

Coronal jets are transient, collimated eruptions that occur in regions of predominantly open magnetic field in the solar corona. Our understanding of these events has greatly evolved in recent years but several open questions, such as the…

Solar and Stellar Astrophysics · Physics 2015-12-01 T. Torok , R. Lionello , V. S. Titov , J. E. Leake , Z. Mikic , J. A. Linker , M. G. Linton

Solar jets are collimated plasma flows moving along magnetic field lines and accelerated at low altitude following magnetic reconnection. Several of them originate from anemone-shaped low-lying arcades and the most impulsive ones tend to be…

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…

Intensity bursts in ultraviolet (UV) to X-ray wavelengths and plasma jets are typical signatures of magnetic reconnection and the associated impulsive heating of the solar atmospheric plasma. To gain new insights into the process,…

Solar and Stellar Astrophysics · Physics 2021-12-15 L. P. Chitta , S. K. Solanki , H. Peter , R. Aznar Cuadrado , L. Teriaca , U. Schühle , F. Auchère , D. Berghmans , E. Kraaikamp , S. Gissot , C. Verbeeck
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