搜索结果: 1-15 共查到“空间物理学 electron”相关记录20条 . 查询时间(0.109 秒)
Total electron content - A key parameterin propagation: measurement and usein ionospheric imaging
parameterin ionosphere
2015/9/14
The paper reports on a series of studies carried out within the COST 271 Action relating to the measurement and use of Total Electron Content (TEC) of the ionosphere over North West Europe.
Total ele...
Imaging of fast moving electron-density structures in the polar cap
polar cap ionosphere data analysis inverse theory ionospheric storms
2015/9/2
The imaging of fast-moving electron-density structures in the polar cap presents a unique set of challenges that
are not encountered in other ionospheric imaging problems. GPS observations of total e...
Searching for seismo-ionospheric earthquakes precursors: Total Electron Content disturbances before 2005-2006 seismic events
seismo-ionoispheric earthquake precursors total electron content of ionosphere lithosphere-atmosphere-ionosphere coupling
2012/5/17
During earthquakes preparation periods significant disturbances in the ionospheric plasma density are often observed. These anomalies are caused by lithosphere-atmosphere-ionosphere interaction, parti...
Electron-cylotron maser radiation from electron holes
Electron cyclotron maser, electron holes, auroralacceleration, auroral radiation fine structure, auroral kilometricradiation, Jupiter radio emission, Planetary radio emission
2011/8/26
Electron holes are suggested to be an important source for generation of electron-cyclotron maser radiation.We demonstrate that electron holes generated in
a ring-horseshoe distribution in the aurora...
Recent observations from satellites crossing regions of magnetic-field-aligned electron streams reveal solitary potential structures that move at speeds much greater than the ion acoustic/thermal velo...
Dromion solutions for nonlinear electron acoustic waves in space plasmas
Dromion solutions nonlinear electron acoustic waves space plasmas
2009/11/12
Recent high resolution measurements of POLAR and FAST satellites have revealed two-dimensional coherent structures in the polar cap boundary layer (PCBL) region. Since the ion temperature is often obs...
This paper presents new results for 1D BGK electron solitary wave (phase-space electron hole) solutions and, based on the new results, extends the solutions to include the 3D electrical interaction (E...
Phase-space holes due to electron and ion beams accelerated by a current-driven potential ramp
Phase-space holes electron and ion beams current-driven potential ramp
2009/11/11
One-dimensional open-boundary simulations have been carried out in a current-carrying plasma seeded with a neutral density depression and with no initial electric field. These simulations show the dev...
Magnetic field turbulence,electron heating,magnetic holes,proton cyclotron waves,and the onsets of bipolar pulse (electron hole) events:a possible unifying scenario
Magnetic field turbulence electron heating magnetic holes proton cyclotron waves
2009/11/11
Two electron heating events have been identified on 20 May 1996 when Polar was in the polar cap/polar cusp boundary layer. The electron heating events were located within magnetic holes/cavities/bubbl...
Nonlinear equilibrium structure of thin currents sheets:influence of electron pressure anisotropy
Nonlinear equilibrium structure thin currents sheets electron pressure anisotropy
2009/11/11
Thin current sheets represent important and puzzling sites of magnetic energy storage and subsequent fast release. Such structures are observed in planetary magnetospheres, solar atmosphere and are ex...
Electron acoustic solitary waves with non-thermal distribution of electrons
Electron acoustic solitary waves non-thermal distribution of electrons
2009/11/11
Electron-acoustic solitary waves are studied in an unmagnetized plasma consisting of non-thermally distributed electrons, fluid cold electrons and ions. The Sagdeev pseudo-potential technique is used ...
Electron acoustic solitons in the Earth's magnetotail
Electron acoustic solitons Earth's magnetotail
2009/11/11
Small amplitude electron - acoustic solitons are studied in a magnetized plasma consisting of two types of electrons, namely cold electron beam and background plasma electrons and two temperature ion ...
The dynamics of electron and ion holes in a collisionless plasma
dynamics of electron ion holes collisionless plasma
2009/11/9
We present a review of recent analytical and numerical studies of the dynamics of electron and ion holes in a collisionless plasma. The new results are based on the class of analytic solutions which w...
Study of nonlinear ion- and electron-acoustic waves in multi-component space plasmas
nonlinear ion- and electron-acoustic waves multi-component space plasmas
2009/11/2
Large amplitude ion-acoustic and electron-acoustic waves in an unmagnetized multi-component plasma system consisting of cold background electrons and ions, a hot electron beam and a hot ion beam are s...
Return-current formation in the electron beam–plasma system
Return-current formation electron beam–plasma system
2009/10/30
Using a 3-D electromagnetic particle-in-cell model an evolution of the electron distribution function in the beam-plasma system with the return current is computed. It was found that the resulting ele...