Coordinated ground-based, low altitude satellite and Cluster observations on global and local scales during a transient post-noon sector excursion of the magnetospheric cusp [PDF]
, 2001 On 14 January 2001, the four Cluster spacecraft passed through the northern magnetospheric mantle in close conjunction to the EISCAT Svalbard Radar (ESR) and approached the post-noon dayside magnetopause over Greenland between 13:00 and 14:00 UT.
Eglitis, P. +58 more
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Auroral vortex street formed by the magnetosphere–ionosphere coupling instability [PDF]
Annales Geophysicae, 2015 By performing three-dimensional magnetohydrodynamic simulations including Alfvén eigenmode perturbations most unstable to the ionospheric feedback effects, we examined the auroral vortex street that often appears just before substorm onset.
Y. Hiraki
doaj +1 more source
Magnetosphere dynamics during the 14 November 2012 storm inferred from TWINS, AMPERE, Van Allen Probes, and BATS-R-US–CRCM [PDF]
Annales Geophysicae, 2018 During the 14 November 2012 geomagnetic storm, the Van Allen Probes spacecraft observed a number of sharp decreases (dropouts) in particle fluxes for ions and electrons of different energies.
N. Buzulukova +10 more
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Observational evidence of ring current in the magnetosphere of Mercury [PDF]
Nature Communications, 2022 Abstract The magnetic gradient and curvature drift of energetic ions can form a longitudinal electric current around a planet known as the ring current, that has been observed in the intrinsic magnetospheres of Earth, Jupiter, and Saturn.
J.-T. Zhao +11 more
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Morphology of the ring current derived from magnetic field observations [PDF]
Annales Geophysicae, 2004 Our examination of the 20 years of magnetospheric magnetic field data from ISEE, AMPTE/CCE and Polar missions has allowed us to quantify how the ring current flows and closes in the magnetosphere at a variety of disturbance levels.
G. Le, C. T. Russell, K. Takahashi
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Current instabilities in the pulsar magnetosphere [PDF]
Proceedings of the International Astronomical Union, 2010 AbstractPulsars are rotating neutron stars with strong magnetic dipole fields (B = 104 − 109T), and high induced surface potentials (ca. 1014V). A strong charged particle current is driven out of the polar cap. It returns along an equatorial current sheet.
Axel Jessner +2 more
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Instability of the magnetosphere-ionosphere convection and formation of auroral arcs [PDF]
Annales Geophysicae, 1994 In this paper we study an instability of the plasma moving towards the Earth near the inner plasma sheet boundary. We include both the interchange instability of the plasma sheet and the magnetosphere-ionosphere interaction instability caused by an ...
A. E. Kozlovsky, W. B. Lyatsky
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Event-oriented modelling of magnetic fields and currents during storms [PDF]
, 2004 P(論文)We model the magnetospheric magnetic field during two storms, moderate and intense, using the event-oriented modelling technique which includes the representations of the magnetic field arising from the various magnetospheric current systems.
Ejiri, Masaki +5 more
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Current controversies in magnetospheric physics [PDF]
Reviews of Geophysics, 2001 The scientific ascent of humankind comes in two forms: incremental progress with traditional thinking, and paradigm transition. The latter typically engenders intense debate, often long lasting, before the transition of the paradigm is deemed acceptable.
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Ionospheric control of the magnetosphere: conductance [PDF]
Annales Geophysicae, 2004 It is well known that the ionosphere plays a role in determining the global state of the magnetosphere. The ionosphere allows magnetospheric currents to close, thereby allowing magnetospheric convection to occur.
A. J. Ridley +2 more
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