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It is known that the magnetic field of the Earth's closed magnetosphere can be highly displaced from the quiet-day configuration when interacting with the interplanetary magnetic field (IMF), an asymmetry largely controlled by the dawn-dusk…

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…

Space Physics · Physics 2007-05-23 Gerald Atkinson

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…

Solar and Stellar Astrophysics · Physics 2022-02-10 Xin Cao , Jasper S. Halekas , Stein Haaland , Suranga Ruhunusiri , Karl-Heinz Glassmeier

In this paper, we present observations of cold (0-70 eV) plasma density in the magnetotail lobes. The observations and results are based on 16 years of Cluster observation of spacecraft potential measurements converted into local plasma…

Space Physics · Physics 2017-01-20 S. Haaland , B. Lybekk , L. Maes , K. Laundal , A. Pedersen , P. Tenfjord , A. Ohma , N. Østgaard , J. Reistad , K. Snekvik

This paper investigates the influence of Earth's dipole tilt angle on the reverse convection cells (sometimes referred to as lobe cells) in the Northern Hemisphere ionosphere during northward IMF, which we relate to high-latitude…

Space Physics · Physics 2020-09-16 J. P. Reistad , K. M. Laundal , N. Østeward , A. Ohma , E. G. Thomas , S. Haaland , K. Oksavik , S. E. Milan

The magnetospheric substorm, which plays a crucial role in flux and energy transport across Earth's magnetosphere, features the formation of a thin, elongated current sheet in the magnetotail during its growth phase. This phase is…

Magnetic reconnection (MR) is a key physical concept explaining the addition of magnetic flux to the magnetotail and closed flux lines back-motion to the dayside magnetosphere. This scenario elaborated by \citet{dung63}, can explain many…

Space Physics · Physics 2014-12-01 Z. Vörös , G. Facskó , M. Khodachenko , I. Honkonen , P. Janhunen , M. Palmroth

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…

Space Physics · Physics 2022-09-27 Xin An , Anton Artemyev , Vassilis Angelopoulos , Andrei Runov , San Lu , Philip Pritchett

Realistic models of magnetic reconnection in the solar chromosphere must take into account that the plasma is partially ionized and that plasma conditions within any two magnetic flux bundles undergoing reconnection may not be the same.…

Solar and Stellar Astrophysics · Physics 2015-06-03 Nicholas A. Murphy , Vyacheslav S. Lukin

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…

We study the role of substorms and steady magnetospheric convection (SMC) in magnetic flux transport in the magnetosphere, using observations of field-aligned currents by the Active Magnetosphere and Planetary Electrodynamics Response…

Solar and Stellar Astrophysics · Physics 2021-07-26 S. E. Milan , M. -T. Walach , J. A. Carter , H. Sangha , B. J. Anderson

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.…

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

Earth's magnetotail region provides a unique environment to study plasma turbulence. We investigate the turbulence developed in an exhaust produced by magnetic reconnection at the terrestrial magnetotail region. Magnetic and velocity…

Magnetic reconnection with asymmetry in the outflow direction occurs in the Earth's magnetotail, coronal mass ejections, flux cancellation events, astrophysical disks, spheromak merging experiments, and elsewhere in nature and the…

Plasma Physics · Physics 2010-09-16 N. A. Murphy , C. R. Sovinec , P. A. Cassak

The interaction of the solar wind with the Earth's magnetic field produces geomagnetic activity, which is critically dependent on the orientation of the interplanetary magnetic field (IMF). Most solar wind coupling functions quantify this…

Earth and Planetary Astrophysics · Physics 2018-05-29 Lauri Holappa , Kalevi Mursula

The objective of the paper is to asses the specific spectral scaling properties of magnetic reconnection associated fluctuations/turbulence at the Earthward and tailward outflow regions observed simultaneously by the Cluster and Double Star…

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…

The Magnetic cloud boundary layer (BL) is a dynamic region formed by the interaction of the magnetic cloud (MC) and the ambient solar wind. In the present study, we comparatively investigate the proton and electron mean flux variations in…

Space Physics · Physics 2012-06-26 Y. Wang , F. S. Wei , X. S. Feng , P. B. Zuo , J. P. Guo , X. J. Xu , Z. Li

We use the am, an, as and the a-sigma geomagnetic indices to the explore a previously overlooked factor in magnetospheric electrodynamics, namely the inductive effect of diurnal motions of the Earth's magnetic poles toward and away from the…

The dynamical signatures of the interaction between galaxies in clusters and the intracluster medium (ICM) can potentially yield significant information about the structure and dynamical history of clusters. To develop our understanding of…

Astrophysics · Physics 2009-10-31 Ian R. Stevens , David M. Acreman , Trevor J. Ponman
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