Results 51 to 60 of about 662,743 (199)

ELFIN Statistics of Electron Strong Diffusion in the Inner Magnetosphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract Pitch‐angle diffusion of trapped electrons driven by whistler‐mode and EMIC waves and by field‐line curvature scattering (FLCS) plays an important role in energetic and relativistic electron loss from the inner magnetosphere. The strong diffusion regime, characterized by a nearly full loss cone, rarely occurs, but is expected to account for a ...
Emile Saint‐Girons, Didier Mourenas, Anton V. Artemyev, Xiao‐Jia Zhang, Vassilis Angelopoulos   +4 more
wiley   +1 more source

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

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

A Data‐Driven Model of the Geomagnetic Storm Recovery Phase

Space Weather, Volume 24, Issue 11, November 2026.
Abstract The recovery phase of geomagnetic storms poses a significant challenge for accurate space weather forecasting. Traditional models based on a constant decay rate fail to capture its prolonged and variable duration, leading to uncertainties in predicting impacts on technological systems.
G. Consolini, M. Lacal, P. De Michelis, S. Benella, E. Consolini, M. Piersanti   +5 more
wiley   +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

The May 2024 Storm: The Cusps and Dayside Magnetopause in Simulated Soft X‐Rays

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The coronal mass ejection (CME) arriving at Earth on 10 May 2024 caused the most intense geomagnetic storm in the last two decades, resulting in highly unusual cusp and magnetopause dynamics. We simulate soft X‐Ray emission due to solar wind charge exchange with exospheric neutrals to image the global dayside dynamics, focusing on the impact ...
J. Ng, L.‐J. Chen, B. Burkholder, D. Sibeck, F. S. Porter, K. H. Pham, V. G. Merkin, H. Connor, J. W. Bonnell, S. Petrinec, Y. Zou, B. Alterman, G. Cucho‐Padin   +12 more
wiley   +1 more source

Superposed epoch analysis of high-speed-stream effects at geosynchronous orbit: Hot plasma, cold plasma, and the solar wind [PDF]

, 2008
Superposed epoch analyses of magnetospheric plasma analyzer (MPA) data from Los Alamos National Laboratory (LANL) satellites are performed to reveal the density, temperature and flow velocity behavior of the hot ion plasma (0.1–45 keV), the hot electron ...
Borovsky, Joseph E., Denton, Michael H.
core   +3 more sources

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

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

Local Acceleration of Multi‐MeV Electrons Inside Earth's Impenetrable Barrier During the May 2024 Superstorm

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract The inner radiation belt (L* < 3) has long been considered an impenetrable barrier to ultra‐relativistic electrons. Here we show that this barrier can be breached under extreme space weather conditions. Using continuous near‐equatorial observations from the Arase satellite, we show that the May 2024 superstorm rapidly generated multi‐MeV ...
Y. Miyoshi, S. Kurita, A. Shinbori, K. Yamamoto, C.‐W. Jun, S. Matsuda, S. Saito, R. Kataoka, D. Wang, I. Shinohara, T. Takashima, T. Mitani, N. Higashio, A. Matsuoka, Y. Kasahara, F. Tsuchiya, A. Kumamoto, T. Hori, N. Kitamura, M. Teramoto   +19 more
wiley   +1 more source