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Related papers: Interchange reconnection in a turbulent Corona

200 papers

Given recent observational results of interchange reconnection processes in the solar corona and the theoretical development of the S-Web model for the slow solar wind, we extend the analysis of the 3D MHD simulation of interchange…

Solar and Stellar Astrophysics · Physics 2014-04-01 B. J. Lynch , J. K. Edmondson , Y. Li

Coronal rain consists of cool plasma condensations formed in coronal loops as a result of thermal instability. The standard models of coronal rain formation assume that the heating is quasi-steady and localised at the coronal loop…

Solar and Stellar Astrophysics · Physics 2019-10-18 P. Kohutova , E. Verwichte , C. Froment

The slow solar wind exhibits strong variability on timescales from minutes to days, likely related to magnetic reconnection processes in the extended solar corona. Higginson2017b presented a numerical magnetohydrodynamic simulation which…

Solar and Stellar Astrophysics · Physics 2018-05-23 Aleida K. Higginson , Benjamin J. Lynch

It is clear that the solar corona is being heated and that coronal magnetic fields undergo reconnection all the time. Here we attempt to show that these two facts are in fact related - i.e. coronal reconnection generates heat. This attempt…

Solar and Stellar Astrophysics · Physics 2023-07-19 Dana W. Longcope , Lucas A. Tarr

In this paper we propose that flux cancellation on small granular scales ($\lesssim 1000$ km) ubiquitously drives reconnection at a multitude of sites in the low solar atmosphere, contributing to chromospheric/coronal heating and the…

Solar and Stellar Astrophysics · Physics 2024-01-23 D. I. Pontin , E. R. Priest , L. P. Chitta , V. S. Titov

Using extreme-ultraviolet images, we recently proposed a new and alternative formation mechanism for coronal rain along magnetically open field lines due to interchange magnetic reconnection. In this paper we report coronal rain at…

Solar and Stellar Astrophysics · Physics 2020-12-16 Leping Li , Hardi Peter , Lakshmi Pradeep Chitta , Hongqiang Song

We investigate coronal heating and acceleration of the high- and low-speed solar wind in the open field region by dissipation of fast and slow magnetohydrodynamical (MHD) waves through MHD shocks. Linearly polarized \Alfven (fast MHD) waves…

Astrophysics · Physics 2009-11-10 Takeru K. Suzuki

The physical connection between thermal convection in the solar interior and the solar wind remains unclear due to their significant scale separation. Using an extended version of the three-dimensional radiative magnetohydrodynamic code…

Solar and Stellar Astrophysics · Physics 2023-07-21 H. Iijima , T. Matsumoto , H. Hotta , S. Imada

The solar wind is connected to the Sun's atmosphere by flux tubes that are rooted in an ever-changing pattern of positive and negative magnetic polarities on the surface. Observations indicate that the magnetic field is filamentary and…

Solar and Stellar Astrophysics · Physics 2015-06-15 Steven R. Cranmer , Adriaan A. van Ballegooijen , Lauren N. Woolsey

With the data from the Atmospheric Imaging Assembly (AIA) and the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO), we present a magnetic interaction between an isolated coronal hole (CH) and an emerging…

Solar and Stellar Astrophysics · Physics 2015-06-17 L. Ma , Z. Q. Qu , X. L. Yan , Z. K. Xue

The Sun's outer atmosphere, the corona, is maintained at mega-Kelvin temperatures and fills the heliosphere with a supersonic outflowing wind. The dissipation of magnetic waves and direct electric currents are likely to be the most…

Solar and Stellar Astrophysics · Physics 2025-03-21 A. K. Srivastava , Sripan Mondal , Eric R. Priest , Sudheer K. Mishra , David I. Pontin , R. Y. Kwon , Ding Yuan , K. Murawski , Ayumi Asai

The structure of magnetic flux ropes injected into the solar wind during reconnection in the coronal atmosphere is explored with particle-in-cell simulations and compared with in situ measurements of magnetic "switchbacks" from the Parker…

Employing Solar Dynamics Observatory/Atmospheric Imaging Assembly (AIA) multi-wavelength images, we have presented coronal condensations caused by magnetic reconnection between a system of open and closed solar coronal loops. In this…

Solar and Stellar Astrophysics · Physics 2019-01-16 Leping Li , Jun Zhang , Peter Hardi , Lakshmi Pradeep Chitta , Jiangtao Su , Hongqiang Song , Chun Xia , Yijun Hou

When magnetic flux emerges from beneath the photosphere it displaces the preexisting field in the corona, and a current sheet generally forms at the boundary between the old and new magnetic domains. Reconnection in the current sheet…

Solar and Stellar Astrophysics · Physics 2015-06-17 Lucas A. Tarr , Dana W. Longcope , David E. McKenzie , Keiji Yoshimura

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 the most likely mechanism responsible for the high temperature events that are observed in strongly magnetized locations around the temperature minimum in the low solar chromosphere. This work improves upon our…

Solar and Stellar Astrophysics · Physics 2018-10-26 Lei Ni , Vyacheslav S. Lukin , Nicholas A. Murphy , Jun Lin

The topology of the coronal magnetic field produces a strong impact on the properties of the solar corona and presumably on the origin of the slow solar wind. To advance our understanding of this impact, we revisit the concept of so-called…

Solar and Stellar Astrophysics · Physics 2020-03-04 R. Lionello , V. S. Titov , Z. Mikić , J. A. Linker

We perform a high-resolution two-dimensional fully-kinetic numerical simulation of a turbulent plasma system with observation-driven conditions, in order to investigate the interplay between turbulence, magnetic reconnection, and particle…

We developed an automated procedure for the identification of transient brightenings in images from the X-ray telescope on-board Hinode taken with an Al Poly filter in the equatorial coronal holes, polar coronal holes, and the quiet Sun…

Solar and Stellar Astrophysics · Physics 2015-05-18 S. Subramanian , M. S. Madjarska , J. G. Doyle

We present a model for the spontaneous onset of fast magnetic reconnection in a weakly collisional plasma, such as the solar corona. When a current layer of macroscopic width undergoes collisional (Sweet-Parker) reconnection, a narrow…

Plasma Physics · Physics 2009-11-11 P. A. Cassak , J. F. Drake , M. A. Shay