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相关论文: How the IMF $\mathit{B}_{y}$ Induces a Local $\mat…

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We used the Lyon-Fedder-Mobarry global magnetohydrodynamics model to study the effects of the interplanetary magnetic field (IMF) IMF $\mathit{B}_{y}$ component on the coupling between the solar wind and magnetosphere-ionosphere system.…

空间物理 · 物理学 2016-06-06 P. Tenfjord , N. Østgaard , K. Snekvik , K. M. Laundal , J. P. Reistad , S. Haaland , S. E. Milan

The most important parameter in the coupling between solar wind and geomagnetic activity is the $B_z$-component of the interplanetary magnetic field (IMF). However, recent studies have shown that IMF $B_y$ is an additional, independent…

空间物理 · 物理学 2019-05-29 Lauri Holappa , Nat Gopalswamy , Kalevi Mursula

We present a follow up study of the sensitivity of the Earth's magnetosphere to solar wind activity using a particles-in-cell model [Baraka and Ben Jaffel, 2007], but here during northward IMF. The formation of the magnetospheric cavity and…

空间物理 · 物理学 2011-01-06 Suleiman Baraka , Lotfi Ben-Jaffel

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…

地球与行星天体物理 · 物理学 2018-05-29 Lauri Holappa , Kalevi Mursula

We analyze the response of different ionospheric equivalent current modes to variations in the interplanetary magnetic field (IMF) components By and Bz. Each mode comprises a fixed spatial pattern whose amplitude varies in time, identified…

空间物理 · 物理学 2021-08-04 R. M. Shore , M. P. Freeman , J. W. Gjerloev

We test and compare a number of existing models predicting the location of magnetic reconnection at Earth's dayside magnetopause for various solar wind conditions. We employ robust image processing techniques to determine the locations…

空间物理 · 物理学 2015-04-24 C. M. Komar , R. L. Fermo , P. A. Cassak

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

We present an analysis of local properties of magnetic reconnection at the dayside magnetopause for various interplanetary magnetic field (IMF) orientations in global magnetospheric simulations. This has heretofore not been practical…

空间物理 · 物理学 2016-07-27 Colin M. Komar , Paul A. Cassak

Deviations of the interplanetary magnetic field (IMF) from Parker's model are frequently observed in the heliosphere at different distances r from the Sun. Usually, it is supposed that the IMF behavior corresponds to Parker's model overall,…

空间物理 · 物理学 2012-12-06 Olga Khabarova , Vladimir Obridko

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…

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…

The impact of high-speed jets -- dynamic pressure enhancements in the magnetosheath -- on the Earth's magnetopause has been observed to trigger local magnetic reconnection. We perform a three-dimensional hybrid simulation to study the…

空间物理 · 物理学 2024-06-19 J. Ng , L. -J. Chen , Y. Omelchenko

A detailed investigation was carried out to understand a prolonged (~44 hours) weakly southward interplanetary magnetic field (IMF-Bz) condition during May 02--04, 1998. In-situ observations, during the period, showed the passage of an…

太阳与恒星天体物理 · 物理学 2016-06-22 Susanta Kumar Bisoi , D. Chakrabarty , P. Janardhan , R. G. Rastogi , A. Yoshikawa , K. Fujiki , M. Tokumaru , Y. Yan

This work is directed to explore the efficacy of strong and consistent correlations between the $\Delta$X component of magnetic field at two equatorial/low-latitude stations at nearly antipodal locations during geomagnetic storms. The…

空间物理 · 物理学 2023-02-02 Sumanjit Chakraborty , D. Chakrabarty

The magnetic disturbances are associated with electric currents as it is well checked at laboratory room scales and described by the Maxwell's equations of electromagnetic field. The analysis of spacecraft observations for more than a…

空间物理 · 物理学 2007-05-23 Eugene Savov

Results of the analysis of spacecraft measurements at 1-5.4 AU are presented within the scope of the large-scale interplanetary magnetic field (IMF) structure investigation. The work is focused on revealing of the radial IMF component (Br)…

空间物理 · 物理学 2015-06-15 Olga V. Khabarova

In the exploration of global-scale features of the Earth's aurora, little attention has been given to the radial component of the Interplanetary Magnetic Field (IMF). This study investigates the global auroral response in both hemispheres…

空间物理 · 物理学 2016-06-07 J. P. Reistad , N. Østgaard , K. M. Laundal , S. Haaland , P. Tenfjord , K. Snekvik , K. Oksavik , S. E. Milan

Under quasi-radial interplanetary magnetic fields (IMF), foreshock turbulence can have an impact on the magnetosheath and cusps depending on the location of the quasi-parallel shock. We perform three-dimensional simulations of Earth's…

空间物理 · 物理学 2022-12-07 J. Ng , L. J. Chen , Y. Omelchenko , Y. Zhou , B. Lavraud

The current work investigates the Venusian solar-wind-induced magnetosphere at a high spatial resolution using all Venus Express (VEX) magnetic observations through an unbiased statistical method. We first evaluate the predictability of the…

空间物理 · 物理学 2021-12-20 Maosheng He , Joachim Vogt , Eduard Dubinin , Tielong Zhang , Zhaojin Rong

This study investigates the modulation of particle fluxes at the Earths surface influenced by the intensity and orientation of the Interplanetary magnetic field (IMF) carried by the Coronal Mass Ejecta (ICME). We examine how IMF and its Bz…

空间物理 · 物理学 2024-06-25 A. Chilingarian , T. Karapetyan , B. Sargsyan , K. Asatryan , G. Gabaryan
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