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相关论文: Magnetosphere-ionosphere coupling in Jupiter's mid…

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During its 53-day polar orbit around Jupiter, Juno often crosses the boundaries of the Jovian magnetosphere (namely the magnetopause and bow shock). From the boundary locations, the upstream solar wind dynamic pressure can be inferred,…

When time-reversal symmetry is broken on its surface, topological insulators exhibit a magnetoelectric response which is described by axion electrodynamics. A direct consequence of this theory is the appearance of a magnetic field that…

介观与纳米尺度物理 · 物理学 2020-01-08 A. Martín-Ruiz , Omar Rodríguez-Tzompantzi , J. R. Maze , L. F. Urrutia

Electric currents flowing through near-Earth space ($\textit{R}$ $\leq$12 $\mathit{R}_{E}$) can support a highly distorted magnetic field topology, changing particle drift paths and therefore having a nonlinear feedback on the currents…

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

Interaction between the solar wind and the Earth's magnetosphere is associated with large-scale currents in the ionosphere at polar latitudes that flow along magnetic field lines (Birkeland currents) and horizontally. These current systems…

空间物理 · 物理学 2016-11-22 Karl M. Laundal , Christopher C. Finlay , Nils Olsen

In a frame of the $t-J-G$ model we derive the microscopical expression for the circulating orbital currents in layered cuprates using the anomalous correlation functions. In agreement with $\mu$-on spin relaxation ($\mu$SR), nuclear…

超导电性 · 物理学 2009-11-07 M. Eremin , I. Eremin

The possibility of the existence of quasi-stationary electromagnetic fields in plasma supported by their own self-consistent current follows from Maxwell's equations with field sources. These equations also give rise to a wave equation for…

经典物理 · 物理学 2023-01-02 Yurii A. Spirichev

Spectropolarimetric observations show that many low-mass stars possess large-scale poloidal magnetic fields with considerable dipole component, which in some cases exhibit temporal dynamics - cycles or reversals. Although it is widely…

太阳与恒星天体物理 · 物理学 2025-07-02 Anna Guseva , Ludovic Petitdemange , Charly Pinçon

Study of the dynamic nature of low-latitude ionosphere during geomagnetically disturbed conditions, especially in the EIA and the magnetic equatorial regions are vital for understanding the underlying physics as well as for mitigating space…

空间物理 · 物理学 2023-02-14 Sumanjit Chakraborty

We have performed extensive two-dimensional magnetohydrodynamic simulations to study the amplification of magnetic fields when a supernova blast wave propagates into a turbulent interstellar plasma. The blast wave is driven by injecting…

高能天体物理现象 · 物理学 2015-06-03 Fan Guo , Shengtai Li , Hui Li , Joe Giacalone , J. R. Jokipii , David Li

We present initial results of the first self-consistent numerical model of the outer magnetosphere of a pulsar. By using the relativistic ``particle-in-cell'' method with special boundary conditions to represent plasma dynamics in 3D, we…

天体物理学 · 物理学 2007-05-23 Anatoly Spitkovsky , Jonathan Arons

Mars lacks a global intrinsic dipole magnetic field, but its interaction with the solar wind generates a global induced magnetosphere. Until now, most studies have relied on single-spacecraft measurements, which could not simultaneously…

Three-dimensional global magnetohydrodynamic simulations of the solar wind - magnetosphere - ionosphere system are carried out to explore the dependence of the magnetospheric reconnection voltage, the ionospheric transpolar potential, and…

太阳与恒星天体物理 · 物理学 2009-04-07 XIONG Ming , PENG Zhong , HU Youqiu , ZHENG Huinan

Hot Jupiters have proven themselves to be a rich class of exoplanets which test our theories of planetary evolution and atmospheric dynamics under extreme conditions. Here, we present three-dimensional magnetohydrodynamic simulations and…

地球与行星天体物理 · 物理学 2017-09-21 T. M. Rogers , J. N. McElwaine

The in-situ characterization of moon-magnetosphere interactions at Jupiter and the mapping of moon auroral footpaths require accurate global models of the magnetospheric magnetic field. In this study, we compare the ability of two…

地球与行星天体物理 · 物理学 2024-01-19 Jonas Rabia , Quentin Nénon , Nicolas André , Vincent Hue , Daniel Santos-Costa , Aneesah Kamran , Michel Blanc

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

Hot jupiter atmospheres may be subject to a thermo-resistive instability where an increase in the electrical conductivity due to ohmic heating results in runaway of the atmospheric temperature. We introduce a simplified one-dimensional…

地球与行星天体物理 · 物理学 2023-08-03 Raphaël Hardy , Paul Charbonneau , Andrew Cumming

We present a global kinetic plasma simulation of an axisymmetric pulsar magnetosphere with self-consistent $e^\pm$ pair production. We use the particle-in-cell method and log-spherical coordinates with a grid size $4096\times 4096$. This…

高能天体物理现象 · 物理学 2022-11-09 Rui Hu , Andrei M. Beloborodov

The high-precision Juno gravitational measurements allow us to infer the structure of Jupiter's deep atmospheric zonal flow. Since this inference is nonunique, it is important to explore the space of possible solutions. In this paper, we…

地球与行星天体物理 · 物理学 2021-11-03 Laura Kulowski , Hao Cao , Rakesh K. Yadav , Jeremy Bloxham

The importance of the Jovian thermosphere with regard to magnetosphere-ionosphere coupling is often neglected in magnetospheric physics. We present the first study to investigate the response of the Jovian thermosphere to transient…

地球与行星天体物理 · 物理学 2013-12-09 J. N. Yates , N. Achilleos , P. Guio