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The magnetotail current sheet's spatial configuration and stability control the onset of magnetic reconnection - the driving process for magnetospheric substorms. The near-Earth current sheet has been thoroughly investigated by numerous…

空间物理 · 物理学 2023-09-29 S. R. Kamaletdinov , A. V. Artemyev , A. Runov , V. Angelopoulos

Based on models derived from Earth's magnetotail, other planets with dipole magnetic fields, including Mercury, Jupiter, and Saturn, were expected to possess similar magnetotail configurations. In this traditional picture, the majority of…

地球与行星天体物理 · 物理学 2026-04-29 Yan Xu , Zhonghua Yao , Frederic Allegrini , Shengyi Ye , Binzheng Zhang , Zhili Zeng , Enhao Feng , Jiuwen Sun , William Dunn , Scott Bolton

Many in-situ spacecraft observations have demonstrated that magnetic reconnection in the Earth's magnetotail is largely controlled by the pre-reconnection current sheet configuration. One of the most important thin current sheet…

空间物理 · 物理学 2022-09-27 Xin An , Anton Artemyev , Vassilis Angelopoulos , Andrei Runov , San Lu , Philip Pritchett

We analyze a magnetotail reconnection onset event on 3 July 2017 that was observed under otherwise quiescent magnetospheric conditions by a fortuitous conjunction of six space and ground-based observatories. The study investigates the…

One of the most important problems of magnetotail dynamics is the substorm onset and the related instability of the magneotail current sheet. Since the simplest 2D current sheet configuration with monotonic $B_z$ was proven to be stable to…

空间物理 · 物理学 2021-12-01 Chen Shi , Anton Artemyev , Marco Velli , Anna Tenerani

In the pursuit of lunar exploration and the investigation of water presence on the lunar surface, a comprehensive understanding of plasma-surface interactions is crucial since the regolith's space weathering can create H$_2$O. However, the…

空间物理 · 物理学 2023-09-29 Suleiman Baraka , Sona Hosseini , Guillaume Gronoff , Lotfi Ben-Jaffel , Robert Ranking

Cluster observations in the near-Earth magnetotail have shown that sometimes the current sheet is bifurcated, i.e. it is divided in two layers. The influence of magnetic turbulence on ion motion in this region is investigated by numerical…

地球与行星天体物理 · 物理学 2015-05-18 S. Dalena , A. Greco , G. Zimbardo , P. Veltri

Mercury's magnetotail hosts a thin and highly dynamic current sheet (CS), where magnetic reconnection and strong fluctuations frequently occur. Here, we statistically analyze magnetic field power spectra across 370 magnetotail CSs observed…

Convection inside the magnetosphere can be regarded as the transfer of magnetic flux and plasma from the magnetotail into the nightside and then convection and drift from there to the dayside. As in many fluid flow situations, the…

空间物理 · 物理学 2007-05-23 Gerald Atkinson

The Earth's magnetotail, located on the night side of the magnetosphere, is a dynamic region where magnetic field energy is released and converted into plasma heating, particle acceleration, and kinetic energy through magnetic reconnection.…

空间物理 · 物理学 2025-05-13 Weiqin Sun , Xiao-Jia Zhang , Anton V. Artemyev , Xi Lu , Xinlin Li , Yang Mei , Zheng Xiang , Declan O'Brien

Magnetic field line reconnection is a universal plasma process responsible for the magnetic field topology change and magnetic field energy dissipation into charged particle heating and acceleration. In many systems, the conditions leading…

In this paper we consider the effect of a self-consistently computed magnetosdisc field structure on the magnetosphere-ionosphere coupling current system at Jupiter. We find that the azimuthal current intensity, and thus the stretching of…

空间物理 · 物理学 2015-05-30 J. D. Nichols

To quantitatively study the driving mechanisms of magnetospheric convection in the magnetotail lobes on a global scale, we utilize data from the ARTEMIS spacecraft in the deep tail and the Cluster spacecraft in the near tail. Previous work…

太阳与恒星天体物理 · 物理学 2022-02-10 Xin Cao , Jasper S. Halekas , Stein Haaland , Suranga Ruhunusiri , Karl-Heinz Glassmeier

Thermal (<1 eV) electron density measurements, derived from the Mars Atmosphere and Volatile Evolution's (MAVEN) Langmuir Probe and Waves (LPW) instrument, are analyzed to produce the first statistical study of the thermal electron…

地球与行星天体物理 · 物理学 2021-03-19 Murti Nauth , Christopher M. Fowler , Laila Andersson , Gina A. DiBraccio , Shaosui Xu , Tristan Weber , David Mitchell

In an experiment on a magnetic dipole interacting with a laser-produced plasma the generation of an intense field aligned current (FAC) system was observed for the first time in a laboratory. The detailed measurements of the total value and…

等离子体物理 · 物理学 2017-11-23 I F Shaikhislamov , V M Antonov , Yu P Zakharov , E L Boyarintsev , A V Melekhov , V G Posukh , A G Ponomarenko

The release of plasma in the jovian magnetotail is observed in the form of plasmoids, travelling compression regions, field-aligned particle beams and flux-rope like events. We demonstrate that electrons propagate along the magnetic field…

地球与行星天体物理 · 物理学 2012-10-17 Elena Kronberg , Satoshi Kasahara , Norbert Krupp , Joachim Woch

In previous experiments by the authors on a magnetic dipole interacting with a laser-produced plasma the generation of an intense field-aligned current (FAC) system on terrella poles was observed. In this paper the question of the origin of…

等离子体物理 · 物理学 2017-11-23 I F Shaikhislamov , Yu P Zakharov , V G Posukh , E L Boyarintsev , A V Melekhov , V M Antonov , A G Ponomarenko

Current sheets are an essential element of the planetary magnetotails, where strong plasma currents self-consistently support magnetic field gradients. The current sheet configuration is determined by plasma populations that contribute to…

空间物理 · 物理学 2023-04-05 A. V. Artemyev , Q. Ma , R. W. Ebert , X. -J. Zhang , F. Allegrini

We present auroral evidence for multiple and, most probably, small scale reconnection in the near Earth magnetospheric plasma sheet current layer during auroral activity. Hall currents as the source of upward and downward field-aligned…

空间物理 · 物理学 2009-02-18 R. A. Treumann , C. H. Jaroschek , R. Pottelette

The Mars Atmosphere and Volatile EvolutioN (MAVEN) mission has been orbiting Mars since 2014 and now has over 10,000 orbits which we use to characterize Mars' dynamic space environment. Through global field line tracing with MAVEN magnetic…

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