Results 101 to 110 of about 22,138 (272)

Phenomena in the ionosphere-magnetosphere system induced by injection of powerful HF radio waves into nightside auroral ionosphere [PDF]

open access: yes, 2005
International audienceExperimental results from three ionospheric HF pumping experiments in overdense E or F regions are summarized. The experiments were conducted by the use of the EISCAT HF Heating facility located near Tromsø, Norway, allowing HF ...
N. F. Blagoveshchenskaya   +13 more
core   +1 more source

Mini-magnetospheres and Moon-magnetosphere interactions: Overview Moon-magnetosphere Interactions

open access: yes, 2019
"Moon-magnetosphere interaction" stands for the interaction of magnetospheric plasma with an orbiting moon. Observations and modeling of moon-magnetosphere interaction is a highly interesting area of space physics because it helps to better understand the basic physics of plasma flows in the universe and it provides geophysical information about the ...
openaire   +2 more sources

Simultaneous TRACERS and THEMIS Observations of Reversed Cusp Ion Dispersions and Dual‐Lobe Reconnection

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract 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 reconnection tailward of the cusp during this northward IMF interval.
M. Øieroset   +22 more
wiley   +1 more source

A general Cluster data and global MHD simulation comparison [PDF]

open access: yes, 2008
Among the many challenges facing the space weather modelling community today, is the need for validation and verification methods of the numerical models available describing the complex nonlinear Sun-Earth system.
Wild, J.A.   +11 more
core   +1 more source

Unraveling the Fine‐Scale Tapestry of Solar Wind at 1AU

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Solar wind is a complex network of distinct magnetic flux tubes, each contained and separated by a current sheet. In this study, more than 50,000 current sheets in the solar wind are identified and characterized for the first time, using multi‐point Cluster observations during solar minimum and maximum intervals.
M. Akhavan‐Tafti   +3 more
wiley   +1 more source

On the Nonlinear Triggering of VLF Emissions by Power Line Harmonic Radiation [PDF]

open access: yes, 1999
VLF ground data from Porojarvi in N. Finland has been presented. Spectrograms reveal frequent occurrence of power line harmonic radiation (PLHR), originating from the Finnish power system and from heavy industrial plant.
Erokhin, N.   +15 more
core   +1 more source

Dissipative pulsar magnetospheres [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2008
2 pages, 10 figures, minor changes for the ...
openaire   +2 more sources

Electromagnetic Ion Cyclotron Waves in the Initial Phase of Geomagnetic Storms

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Using simultaneous magnetic field observations from 10 satellites and an automated detection algorithm, we identify broad regions of electromagnetic ion cyclotron (EMIC) wave activity during the initial phases of geomagnetic storms between September 2015 and October 2019.
Taylor R. Whitney Aegerter   +1 more
wiley   +1 more source

Open flux estimates in Saturn's magnetosphere during the January 2004 Cassini-HST campaign, and implications for reconnection rates [PDF]

open access: yes, 2005
peer reviewedDuring 8-30 January 2004, a sequence of 68 UV images of Saturn's southern aurora was obtained by the Hubble Space Telescope (HST), coordinated for the first time with measurements of the upstream interplanetary conditions made by the Cassini
Badman, S. V.   +15 more
core   +1 more source

The high-energy tail of energetic electron precipitation: case studies

open access: yesFrontiers in Astronomy and Space Sciences
Precipitating plasma sheet, ring current, and radiation belt electrons will affect the ionization level and composition of the neutral atmosphere. Knowledge gaps remain regarding the frequency, intensity, and energy spectrum of the Medium Energy Electron
Hilde Nesse, Josephine Salice
doaj   +1 more source

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