Results 51 to 60 of about 637,520 (196)

Plasma sheet access to the inner magnetosphere [PDF]

Journal of Geophysical Research: Space Physics, 2001
We present here plasma data from the Polar HYDRA instrument giving comprehensive coverage of the inner magnetospheric region from L ∼ 2 outward. Data is projected to an equatorial reference plane yielding a global view of the inner extend of the plasma sheet.
R. H. W. Friedel, H. Korth, M. G. Henderson, M. F. Thomsen, J. D. Scudder   +4 more
openaire   +1 more source

Evolution of Reversed Electron Energy Spectra in Earth’s Radiation Belts Observed by CIRBE

Geophysical Research Letters, Volume 53, Issue 18, 28 September 2026.
Abstract Following an intense geomagnetic storm (Dst < −150 nT) on 5 November 2023, electron fluxes in the outer radiation belt were reduced by more than three orders of magnitude at energies below ∼700 keV while they were enhanced at ∼1–3 MeV, leading to reversed energy spectra.
Ziye Zhang, Xinlin Li, Zheng Xiang, Declan O’Brien, Theodore Sarris, Misty Chien, Wesley Martin   +6 more
wiley   +1 more source

An electric theory of auroral substorms: why do auroral substorms occur in the way they occur

Frontiers in Astronomy and Space Sciences
A new morphological model of auroral substorms is proposed on the basis of sequencing several key observations. The most important aspect of substorms is their explosive feature.
Syun-Ichi Akasofu
doaj   +1 more source

Electric Current Approach Studying Both Auroral Substorms and Solar Flares Together

Frontiers in Astronomy and Space Sciences, 2020
Auroral substorms and solar flares are basically various manifestations of electromagnetic energy dissipation processes, so it is useful to consider both phenomena in terms of a chain of processes, consisting of power supply (dynamo), transmission ...
Syun-Ichi Akasofu
doaj   +1 more source

New Electron Population Trapped at Low Latitudes Near Jupiter

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract We report observations of a low energy (<2 keV), trapped electron population near Jupiter's magnetic equator made by the Jovian Auroral Distributions Experiment (JADE) on Juno. Electron intensity peaks around the location of the minimum magnetic field magnitude along the field line that is connected to Juno.
F. Allegrini, P. Kollman, R. W. Ebert, J. R. Szalay, G. Clark, P. Louarn, D. J. McComas, P. Valek, S. J. Bolton   +8 more
wiley   +1 more source

Anti-particles in the inner magnetosphere: energetic positron population

Geofísica Internacional, 1996
Se analiza la generación de antipartículas atrapadas en el cinturón interior de la magnetosfera. Dichas partículas podrían tener flujos en exceso de los flujos interestelares generados por rayos cósmicos.
I. M. Martin, A. A. Gusev, G. I. Pugacheva, M. G. Silva Mello   +3 more
doaj   +1 more source

Recirculation of plasmasphere material during idealized magnetic storms

Frontiers in Physics, 2023
The fate of flux tube material once it is eroded from of the plasmasphere through a dayside plume remains unknown. The eroded plasmasphere material can be either swept away by the solar wind and lost from Earth’s system, or recirculated into the inner ...
Christian-Andrew Bagby-Wright, Daniel T. Welling, Ramon E. Lopez, Roxanne Katus, Brian M. Walsh   +4 more
doaj   +1 more source

Numerical Investigations of Low‐Latitude Ground Magnetic Fields Due To Cavity Mode Oscillations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Pi2 oscillations are known to be associated with cavity mode oscillations (CMOs) in the inner magnetosphere at low latitudes. CMOs can also be excited by interplanetary shocks on the dayside. We present results from a global linear MHD wave model in spherical coordinates that allows us to analyze these waves at equatorial latitudes.
K. Majmudar, R. L. Lysak, K. Takahashi
wiley   +1 more source

Electron pitch-angle diffusion: resonant scattering by waves vs. nonadiabatic effects [PDF]

Annales Geophysicae, 2013
In this paper we investigate the electron pitch-angle diffusion coefficients in the night-side inner magnetosphere around the geostationary orbit (L ~ 7) due to magnetic field deformation.
A. V. Artemyev, A. V. Artemyev, K. G. Orlova, K. G. Orlova, D. Mourenas, O. V. Agapitov, O. V. Agapitov, V. V. Krasnoselskikh   +7 more
doaj   +1 more source

Latitudinal dependence of ground VLF transmitter wave power in the inner magnetosphere

Frontiers in Astronomy and Space Sciences, 2023
In this study, we use approximately 3 years of observations from the Exploration of energization and Radiation in Geospace (ERG/Arase) satellite to statistically study the meridional distribution of wave power from very-low-frequency (VLF) ground ...
Zhiyang Xia, Lunjin Chen, Wenyao Gu, Richard B. Horne, Yoshizumi Miyoshi, Yoshiya Kasahara, Atsushi Kumamoto, Fuminori Tsuchiya, Satoko Nakamura, Masahiro Kitahara, Iku Shinohara   +10 more
doaj   +1 more source