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The Earth's magnetosphere is formed as a consequence of interaction between the planet's magnetic field and the solar wind, a continuous plasma stream from the Sun. A number of different solar wind phenomena have been studied over the past…

Coronal Mass Ejections (CMEs) erupting from the host star are expected to have effects on the atmospheric erosion processes of the orbiting planets. For planets with a magnetosphere, the embedded magnetic field in the CMEs is thought to be…

太阳与恒星天体物理 · 物理学 2024-11-12 Gopal Hazra , Aline A. Vidotto , Stephen Carolan , Carolina Villarreal D'Angelo , Dúalta Ó Fionnagáin

Flux transfer events (FTEs) are a type of magnetospheric phenomena that exhibit distinctive observational signatures from the in-situ spacecraft measurements across the Earth's magnetopause. They are generally believed to possess a magnetic…

空间物理 · 物理学 2023-09-20 Shuo Wang , Ying Zou , Qiang Hu , Xueling Shi , Hiroshi Hasegawa

We present detailed analysis of the turbulence observed in three-dimensional particle-in-cell simulations of magnetic reconnection at the magnetopause. The parameters are representative of an electron diffusion region encounter of the…

空间物理 · 物理学 2018-05-04 L. Price , M. Swisdak , J. F. Drake , J. L. Burch , P. A. Cassak , R. E. Ergun

Magnetic data from GOES geosynchronous satellites were applied for statistical study of the low-latitude dayside magnetopause under a strong interplanetary magnetic field of southward orientation when the reconnection at the magnetopause…

空间物理 · 物理学 2013-02-18 A. Dmitriev , A. Suvorova

We present observations of the same magnetic cloud made near Earth by the Advance Composition Explorer (ACE), Wind, and the Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun (ARTEMIS) mission…

空间物理 · 物理学 2020-11-18 E. E. Davies , R. J. Forsyth , S. W. Good , E. K. J. Kilpua

We present observations from two consecutive TRACERS-2 orbits through the northern low-altitude cusp. During the first crossing, TRACERS-2 observed reversed cusp ion dispersion and sunward convection, consistent with magnetopause…

Coronal mass ejections (CMEs) are large-scale expulsions of plasma and magnetic flux from the Sun's corona into the heliosphere. In interplanetary space they are referred to as interplanetary CMEs (ICMEs), often characterised by a shock, a…

太阳与恒星天体物理 · 物理学 2026-04-03 Akanksha Dagore , Giuseppe Prete , Vincenzo Capparelli , Vincenzo Carbone , Fabio Lepreti

We report a unique conjugate observation of fast flows and associated current sheet disturbances in the near-Earth magnetotail by MMS (Magnetospheric Multiscale) and Cluster preceding a positive bay onset of a small substorm at ~14:10 UT,…

Plasma in the earth's magnetosphere is subjected to compression during geomagnetically active periods and relaxation in subsequent quiet times. Repeated compression and relaxation is the origin of much of the plasma dynamics and…

等离子体物理 · 物理学 2020-08-19 Gurudas Ganguli , Chris Crabtree , Alex Fletcher , Bill Amatucci

The pressure balance at the magnetopause is formed by magnetic field and plasma in the magnetosheath, on one side, and inside the magnetosphere, on the other side. In the approach of dipole earth's magnetic field configuration and…

地球与行星天体物理 · 物理学 2011-10-25 A. V. Suvorova , A. V. Dmitriev

An analytic model of the heliosheath (HS) between the termination shock (TS) and the heliopause (HP) is developed in the limit in which the interstellar flow and magnetic field are neglected. The heliosphere in this limit is axisymmetric…

太阳与恒星天体物理 · 物理学 2015-08-06 J. F. Drake , M. Swisdak , M. Opher

Based on the difference between the orientation of the interstellar $B_{ISM}$ and the solar magnetic fields, there was an expectation that the magnetic field direction would rotate dramatically across the heliopause (HP). However, the…

空间物理 · 物理学 2017-04-19 M. Opher , J. F. Drake , M. Swisdak , B. Zieger , G. Toth

We compare case studies of Magnetospheric Multiscale (MMS)-observed magnetopause electron diffusion regions (EDRs) to determine how the rate of work done by the electric field,…

Recent Magnetosphere Multiscale (MMS) observations found 238 high energy (> 40 keV) electron "leaking" events in the the magnetosheath [Cohen et al., 2017]. While several sources have been proposed, the dominant mechanism or origin of these…

空间物理 · 物理学 2024-03-19 Katariina Nykyri , Christina Chu , Xuanye Ma , Rachel Rice

Coronal mass ejections (CMEs) are the eruptions of magnetised plasma from the Sun and are considered the main driver of adverse space weather events. Hence, undrstanding its formation process, particularly the magnetic topology, is critical…

太阳与恒星天体物理 · 物理学 2025-02-26 Jinhan Guo , Y. W. Ni , B. Schmieder , Y. Guo , C. Xia , P. Devi , R. Chandra , S. Poedts , R. Joshi , Y. H. Zhou , H. T. Li , P. F. Chen

Collisionless space plasma turbulence can generate reconnecting thin current sheets as suggested by recent results of numerical magnetohydrodynamic simulations. The MMS mission provides the first serious opportunity to check if small…

We use Magnetospheric Multiscale (MMS) mission data to investigate electron-scale energy transfer due to lower hybrid drift waves during magnetopause reconnection. We analyze waves observed in an electron-scale plasma mixing layer at the…

空间物理 · 物理学 2025-04-04 Sabrina F. Tigik , Daniel B. Graham , Yuri V. Khotyaintsev

The foreshock region involves localized and transient structures such as foreshock cavities and hot flow anomalies due to solar wind-bow shock interactions, and foreshock transients have been shown to lead to magnetospheric and ionospheric…

Magnetosphere at ion kinetic scales, or mini-magnetosphere, possesses unusual features as predicted by numerical simulations. However, there are practically no data on the subject from space observations and the data which are available are…

等离子体物理 · 物理学 2017-11-17 Shaikhislamov I F , Yu P Zakharov , V G Posukh , A V Melekhov , V M Antonov , E L Boyarintsev , A G Ponomarenko