Results 21 to 30 of about 5,320 (271)

Saturn's Plasmapause: Signature of Magnetospheric Dynamics [PDF]

Journal of Geophysical Research: Space Physics, 2019
AbstractWe explore the paradigm that Saturn's plasmapause marks the boundary between the magnetic flux tubes that have been circulating around the planet for some time, accumulating a dense load of Enceladus‐sourced material, and those that have recently undergone tail reconnection, shedding the bulk of the cold plasma and retaining a more tenuous ...
M.F. Thomsen, A.J. Coates
openaire   +3 more sources

Wave-induced loss of ultra-relativistic electrons in the Van Allen radiation belts. [PDF]

Nat Commun, 2016
The dipole configuration of the Earth's magnetic field allows for the trapping of highly energetic particles, which form the radiation belts. Although significant advances have been made in understanding the acceleration mechanisms in the radiation belts,
Shprits YY, Drozdov AY, Spasojevic M, Kellerman AC, Usanova ME, Engebretson MJ, Agapitov OV, Zhelavskaya IS, Raita TJ, Spence HE, Baker DN, Zhu H, Aseev NA.   +12 more
europepmc   +3 more sources

Alfvén waves in the magnetosphere generated by shock wave/plasmapause interaction

Solar-Terrestrial Physics, 2019
We study Alfvén waves generated in the magnetosphere during the passage of an interplanetary shock wave. After shock wave passage, the oscillations with typical Alfvén wave dispersion have been detected in spacecraft observations inside the magnetosphere.
Leonovich A.S., Qiugang Zong, Kozlov D.A., Yongfu Wang   +3 more
doaj   +2 more sources

Range finding of Alfvén oscillations and direction finding of ion-cyclotron waves by using the ground-based ULF finder [PDF]

Annales Geophysicae, 1997
A new approach to the problem of direction and distance finding of magnetospheric ULF oscillations is described. It is based on additional information about the structure of geoelectromagnetic field at the Earth's surface which is contained in the ...
A. Guglielmi, J. Kangas, D. Milling, D. Orr, O. Pokhotelov   +4 more
doaj   +6 more sources

A quantitative model for cyclotron wave-particle interactions at the plasmapause [PDF]

Annales Geophysicae, 1998
The formation of a zone of energetic electron precipitation by the plasmapause, a region of enhanced plasma density, following energetic particle injection during a magnetic storm, is analyzed.
D. L. Pasmanik, V. Y. Trakhtengerts, A. G. Demekhov, A. A. Lyubchich, E. E. Titova, T. Yahnina, M. J. Rycroft, J. Manninen, T. Turunen   +8 more
doaj   +3 more sources

On the Initial Enhancement of Energetic Electrons and the Innermost Plasmapause Locations: Coronal Mass Ejection‐Driven Storm Periods [PDF]

Journal of Geophysical Research: Space Physics, 2018
Using Van Allen Probes' observations and established plasmapause location (Lpp) models, we investigate the relationship between the location of the initial enhancement (IE) of energetic electrons and the innermost (among all magnetic local time sectors ...
L. Khoo, Xinlin Li, H. Zhao, T. Sarris, Z. Xiang, Kun Zhang, A. Kellerman, J. Blake   +7 more
semanticscholar   +2 more sources

ULF Wave Characteristics in the Auroral Zone through the Plasmapause

Antarctic Record, 1979
Geomagnetic pulsations in the auroral zone through the plasma-pause were examined on the basis of IMS observation data obtained in Canada. It was shown that the geomagnetic pulsations in the daytime are reasonably accounted for in terms of HM waves ...
Kanji HAYASHI, Takashi OGUCHI, Susumu KOKUBUN, Koichiro TSURUDA, Tomiya WATANABE, R. E. HORITA   +5 more
doaj   +2 more sources

The Plasmasphere Boundary Layer [PDF]

Annales Geophysicae, 2004
As an inner magnetospheric phenomenon the plasmapause region is of interest for a number of reasons, one being the occurrence there of geophysically important interactions between the plasmas of the hot plasma sheet and of the cool plasmasphere. There
D. L. Carpenter, J. Lemaire, J. Lemaire
doaj   +1 more source

Improving Predictions of the 3D Dynamic Model of the Plasmasphere

Frontiers in Astronomy and Space Sciences, 2021
In this perspective paper, we review and discuss different ways that can be used to improve the predictions of the models of the plasmaspheric region. The density of the background cold plasma and the plasmapause position are very important to determine ...
Viviane Pierrard, Viviane Pierrard, Edith Botek, Fabien Darrouzet   +3 more
doaj   +1 more source

Low Frequency Plasmaspheric Hiss Wave Activity Parameterized by Plasmapause Location: Models and Simulations

Journal of Geophysical Research: Space Physics, 2022
Plasmaspheric hiss waves are a dominant source of scattering for keV‐MeV radiation belt electrons within the plasmasphere. Previous simulation and modeling work concerning hiss waves has often incorporated them via particle‐based parameterizations (e.g.,
A. Saikin, A. Drozdov, D. Malaspina
semanticscholar   +1 more source