Results 21 to 30 of about 1,699 (184)

Estimates of magnetotail reconnection rate based on IMAGE FUV and EISCAT measurements [PDF]

Annales Geophysicae, 2005
Dayside merging between the interplanetary and terrestrial magnetic fields couples the solar wind electric field to the Earth's magnetosphere, increases the magnetospheric convection and results in efficient transport of solar wind energy into the ...
N. Østgaard, J. Moen, J. Moen, S. B. Mende, H. U. Frey, T. J. Immel, P. Gallop, K. Oksavik, M. Fujimoto   +8 more
doaj   +1 more source

The Magnetic Corona: Magnetic Reconnection in Solar Flares [PDF]

Symposium - International Astronomical Union, 2004
The ability of the Transition Region and Coronal Explorer (TRACE) to image the Sun at high spatial resolution and high cadence over a very broad range of temperatures makes it a unique instrument for observing solar flare plasma. TRACE observations have confirmed the reconnection model for solar flares, at least qualitatively.
openaire   +1 more source

Achieving fast reconnection in resistive MHD models via turbulent means [PDF]

Nonlinear Processes in Geophysics, 2012
Astrophysical fluids are generally turbulent and this preexisting turbulence must be taken into account for models of magnetic reconnection in astrophysical, solar or heliospheric environments.
G. Lapenta, A. Lazarian
doaj   +1 more source

Geoeffectiveness of Interplanetary Alfvén Waves. I. Magnetopause Magnetic Reconnection and Directly Driven Substorms

The Astrophysical Journal, 2023
In particular during the descending phase of the solar cycle, Alfvén waves in the high-speed solar wind streams are a major form of interplanetary disturbances.
Lei Dai, Yimin Han, Chi Wang, Shuo Yao, Walter Gonzalez, Suping Duan, Benoit Lavraud, Yong Ren, Zhenyuan Guo   +8 more
doaj   +1 more source

Occurrence of Flat‐Top Electron Velocity Distributions in Magnetotail Plasma Jets

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract Non‐Maxwellian electron velocity distributions (eVDFs) are ubiquitous in collisionless plasmas. For example, various types of non‐Maxwellian eVDFs exist in magnetic reconnection jets in the Earth's magnetotail. At thermal energies, eVDF can be flat‐topped due to electron trapping associated with magnetic reconnection.
L. Richard, Yu. V. Khotyaintsev, C. Norgren   +2 more
wiley   +1 more source

Analytical solution of steady reconnection outflows in a time-varying three-dimensional reconnection model with generalized spatiotemporal distributions

Frontiers in Physics
Magnetic reconnection is a fundamental mechanism for energy conversion in the realms of space physics, astrophysics, and plasma physics. Over the past few decades, obtaining analytical solutions for three-dimensional (3D) magnetic reconnection has ...
Y. L. Chen, Y. Wang, F. S. Wei, X. S. Feng, Z. L. Zhou, B. Y. Wang, P. B. Zuo, C. W. Jiang, Y. X. Gu, L. D. Wang, X. J. Song, X. J. Xu   +11 more
doaj   +1 more source

Open Magnetic Field Lines Partition Auroral Oval Segments Into Transpolar Arcs

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Transpolar arcs (TPAs) are auroral structures spanning the polar cap. One type appears in conjugate hemispheres and is thought to be located on closed field lines, but how closed flux enters the open polar cap remains debated. We address this using observation and simulation of conjugate TPAs after an interplanetary magnetic field (IMF) By ...
Xin‐Ming Chen, Zan‐Yang Xing, Qing‐He Zhang, Hui‐Gen Yang, L. R. Lyons, K. Oksavik, Yong‐Liang Zhang, S. E. Milan, Xiang‐Yu Wang, Yu‐Zhang Ma, Yong Wang, Lu Sheng, Duan Zhang, Zhi‐Feng Xiu, Bian‐Long Zhao   +14 more
wiley   +1 more source

Natural Generation of Alfvén Waves from Three-dimensional Bursty Interchange Magnetic Reconnection in the Solar Corona

The Astrophysical Journal Letters
Alfvén waves play a significant role in solar coronal heating, solar wind acceleration, and Alfvénic turbulence formation. As a fundamental process, magnetic reconnection has long been credited as a crucial source of Alfvén waves.
Liping Yang, Jiansen He, Xueshang Feng, Daniel Verscharen, Fan Guo, Hui Li, Hui Tian, Wenya Li, Fang Shen, Chuanpeng Hou, Mijie Shi, Honghong Wu, Ming Xiong   +12 more
doaj   +1 more source

How the Relative Contribution of DP‐1 and DP‐2 Currents Reshapes the Global Current System During Substorms

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract Geomagnetic disturbances in polar regions can be decomposed into two main patterns: the Disturbance Polar (DP) 1 and 2. How their relative contribution reshapes global current system remains unclear. In this study, we classified substorms from 2010 to 2022 into weak and strong DP‐2 events based on the ratio of the eastward to westward auroral ...
Jiarong Ma, Chao Yue, Haobo Fu, Shan Wang, Qiugang Zong, Xuzhi Zhou   +5 more
wiley   +1 more source

Plasma Stability in Turbulent Magnetic Flux Ropes Downstream of a Collisionless Shock

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract How pre‐existing solar wind turbulence, and coherent structures such as magnetic flux ropes within it, influence the transition of plasma across a shock is still poorly understood. Recently, in situ observations from the Earth's magnetosheath have been used to study plasma stability against ion kinetic instabilities. In the turbulent flow, the
L. Vuorinen, D. Burgess, F. Koller, D. Trotta   +3 more
wiley   +1 more source