Results 31 to 40 of about 5,320 (271)

Plasmapause formation at Saturn [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2015
AbstractCassini observations during a rapid, high‐latitude, dawnside pass from Saturn's lobe to inner magnetosphere on 25 June 2009 provide strong evidence for the formation of a “plasmapause” at Saturn by Vasyliunas‐type nightside reconnection of previously mass‐loaded flux tubes.
M. F. Thomsen   +5 more
openaire   +4 more sources

Van Allen Probes Observations of Oxygen Ions at the Geospace Plume

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The geospace plume couples the ionosphere, plasmasphere, and magnetosphere from sub-auroral regions to the magnetopause, on polar field lines, and into the magnetotail.
John C. Foster, Philip J. Erickson
doaj   +1 more source

Correlations Between Giant Undulations and Plasmapause Configurations

open access: yesGeophysical Research Letters, 2022
In this letter, we report the correlations between giant undulations (GUs) and plasmapause (PP) configurations based on GUs' images and corresponding PP crossings of satellites between 2005 and 2019.
Yijia Zhou   +5 more
semanticscholar   +1 more source

Modeling of the cold electron plasma density for radiation belt physics

open access: yesFrontiers in Astronomy and Space Sciences, 2023
This review focusses strictly on existing plasma density models, including ionospheric source models, empirical density models, physics-based and machine-learning density models.
J.-F. Ripoll   +12 more
doaj   +1 more source

A new perspective and explanation for the formation of plasmaspheric shoulder structures [PDF]

open access: yesAnnales Geophysicae, 2021
Over the hours of 05:00–09:00 UT on 8 June 2001, the extreme ultraviolet (EUV) instrument on board the IMAGE satellite observed a shoulder-like formation in the morning sector and a post-noon plume-like structure.
H. Zhang, G. Peng, C. Shen, Y. Wu
doaj   +1 more source

A Comparison of the Location of the Mid‐Latitude Trough and Plasmapause Boundary

open access: yesJournal of Geophysical Research: Space Physics, 2021
We have compared the location of the mid‐latitude trough observed in two dimensional vertical total electron content (vTEC) maps with four plasmapause boundary models, Radiation Belt Storm Probes (RBSP) observations, and IMAGE extreme ultraviolet (EUV ...
J. Weygand, I. Zhelavskaya, Y. Shprits
semanticscholar   +1 more source

On structuring of the plasmapause [PDF]

open access: yesGeophysical Research Letters, 2012
Irregularities have been observed on the plasmapause by radio wave techniques and by in situ density, electric field, and magnetic field measurements. We review these data sets and show that Alfvén waves are present and could lead to the observed fluctuations through mixing of the gradient in plasma density at the plasmapause.
M. C. Kelley, J. Franz, A. Jacobson
openaire   +1 more source

Formation of the oxygen torus in the inner magnetosphere: Van Allen Probes observations [PDF]

open access: yes, 2015
We study the formation process of an oxygen torus during the 12–15 November 2012 magnetic storm, using the magnetic field and plasma wave data obtained by Van Allen Probes.
De Pascuale, S.   +11 more
core   +3 more sources

Remote sensing the plasmasphere, plasmapause, plumes and other features using ground-based magnetometers

open access: yesJournal of Space Weather and Space Climate, 2014
The plasmapause is a highly dynamic boundary between different magnetospheric particle populations and convection regimes. Some of the most important space weather processes involve wave-particle interactions in this region, but wave properties may also ...
Menk Frederick   +7 more
doaj   +1 more source

Whistler propagation in the plasmapause [PDF]

open access: yesJournal of Geophysical Research: Space Physics, 2013
Variations in plasma density and magnetic field have a strong effect on the propagation of very low frequency waves in the whistler mode. Numerous studies have established that field‐aligned density irregularities (sometimes called ducts) symmetrical relative their axis can effectively guide whistlers along the ambient magnetic field. In this paper, we
J.R. Woodroffe, A.V. Streltsov
openaire   +1 more source

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