Results 11 to 20 of about 20,122 (200)

Magnetospheric convection electric field dynamics andstormtime particle energization: case study of the magneticstorm of 4 May 1998 [PDF]

Annales Geophysicae, 2004
It is shown that narrow channels of high electric field are an effective mechanism for injecting plasma into the inner magnetosphere. Analytical expressions for the electric field cannot produce these channels of intense plasma flow, and thus, result ...
G. V. Khazanov, M. W. Liemohn, T. S. Newman, M.-C. Fok, A. J. Ridley   +4 more
doaj   +7 more sources

Empirical modeling of the quiet time nightside magnetosphere [PDF]

, 1994
Empirical modeling of plasma pressure and magnetic field for the quiet time nightside magnetosphere is investigated. Two models are constructed for this study. One model, referred to here as T89R, is basically the magnetic field model of Tsyganenko (1989)
Lui, A. T. Y., Spence, Harlan E., Stern, D. P.   +2 more
core   +2 more sources

Relation between magnetosonic waves and pitch angle anisotropy of warm protons

Frontiers in Astronomy and Space Sciences, 2022
In the past decade, many observations of transversely heated low energy protons were reported in the inner magnetosphere. Interestingly, most of the time heated protons were observed along with magnetosonic waves.
J. Joseph, A. N. Jaynes, Q. Ma, Q. Ma, D. P. Hartley, M. E. Usanova, W. Li   +6 more
doaj   +1 more source

Filamentary Currents and Alfvénic Vortices in the Inner Magnetosphere

Geophysical Research Letters, 2020
We show that broadband low‐frequency Alfvénic field variations observed in the inner‐magnetosphere from the Van Allen Probes during geomagnetically disturbed intervals are composed of multiscale current sheets, current filaments, flow shears, and ...
C. C. Chaston, J. W. Bonnell, J. R. Wygant, G. D. Reeves, D. N. Baker   +4 more
doaj   +1 more source

Dynamics of the terrestrial radiation belts: a review of recent results during the VarSITI (Variability of the Sun and Its Terrestrial Impact) era, 2014–2018

Progress in Earth and Planetary Science, 2021
The Earth’s magnetosphere is region that is carved out by the solar wind as it flows past and interacts with the terrestrial magnetic field. The inner magnetosphere is the region that contains the plasmasphere, ring current, and the radiation belts all ...
Shrikanth Kanekal, Yoshizumi Miyoshi
doaj   +1 more source

A three-dimensional model for the radio emission of magnetic chemically peculiar stars [PDF]

, 2004
In this paper we present a three-dimensional numerical model for the radio emission of Magnetic Chemically Peculiar stars, on the hypothesis that energetic electrons emit by the gyrosynchrotron mechanism. For this class of radio stars, characterized by a
Buemi, C. S., Leone, F., Leto, P., Trigilio, C., Umana, G.   +4 more
core   +2 more sources

Ring current dynamics in the Earth's inner magnetosphere

地球与行星物理论评, 2022
The terrestrial ring current, flowing near the equator at the altitude of 2 RE～7 RE, is one of the most significant electric current systems of the Earth's magnetosphere.
Yan Zhuang, Chao Yue
doaj   +1 more source

Modeling Inner Magnetospheric Electrodynamics [PDF]

, 2013
We describe a model of inner magnetospheric electrodynamics that couples the Rice Convection Model (RCM) to an equilibrium magnetic field model. The equilibrium model is a modified version of the Hesse-Birn [1993] magnetofriction code, adapted for use in the inner magnetosphere.
F. R. Toffoletto, R. W. Spiro, R. A. Wolf, J. Birn, M. Hesse   +4 more
openaire   +1 more source

Ground-based instruments of the PWING project to investigate dynamics of the inner magnetosphere at subauroral latitudes as a part of the ERG-ground coordinated observation network

Earth, Planets and Space, 2017
The plasmas (electrons and ions) in the inner magnetosphere have wide energy ranges from electron volts to mega-electron volts (MeV). These plasmas rotate around the Earth longitudinally due to the gradient and curvature of the geomagnetic field and by ...
Kazuo Shiokawa, Yasuo Katoh, Yoshiyuki Hamaguchi, Yuka Yamamoto, Takumi Adachi, Mitsunori Ozaki, Shin-Ichiro Oyama, Masahito Nosé, Tsutomu Nagatsuma, Yoshimasa Tanaka, Yuichi Otsuka, Yoshizumi Miyoshi, Ryuho Kataoka, Yuki Takagi, Yuhei Takeshita, Atsuki Shinbori, Satoshi Kurita, Tomoaki Hori, Nozomu Nishitani, Iku Shinohara, Fuminori Tsuchiya, Yuki Obana, Shin Suzuki, Naoko Takahashi, Kanako Seki, Akira Kadokura, Keisuke Hosokawa, Yasunobu Ogawa, Martin Connors, J. Michael Ruohoniemi, Mark Engebretson, Esa Turunen, Thomas Ulich, Jyrki Manninen, Tero Raita, Antti Kero, Arto Oksanen, Marko Back, Kirsti Kauristie, Jyrki Mattanen, Dmitry Baishev, Vladimir Kurkin, Alexey Oinats, Alexander Pashinin, Roman Vasilyev, Ravil Rakhmatulin, William Bristow, Marty Karjala   +47 more
doaj   +1 more source

Method for Approximating Field-Line Curves Using Ionospheric Observations of Energy-Variable Electron Beams Launched From Satellites

Frontiers in Astronomy and Space Sciences, 2019
Using electron beam accelerators attached to satellites in Earth orbit, it may be possible to measure arc length and curvature of field-lines in the inner magnetosphere if the accelerator is designed with the capability to vary the beam energy.
Jake M. Willard, Jay R. Johnson, Jesse M. Snelling, Andrew T. Powis, Igor D. Kaganovich, Ennio R. Sanchez   +5 more
doaj   +1 more source