搜索结果: 1-11 共查到“空间物理学 magnetic field”相关记录11条 . 查询时间(0.089 秒)
A theory of the Earth's magnetic field and of sunspots,based on a self-excited dynamo incorporating the Hall effect
Earth's magnetic field self-excited dynamo Hall effect
2009/11/12
A new viewpoint on the generation and maintenance of the Earth's magnetic field is put forward, which integrates self-exciting dynamo theory with the possibility of energy coupling along orthogonal ax...
A Monte Carlo simulation of magnetic field line tracing in the solar wind
Monte Carlo simulation magnetic field line solar wind
2009/11/12
It is well known that the structure of magnetic field lines in solar wind can be influenced by the presence of the magnetohydrodynamic turbulence. We have developed a Monte Carlo simulation which trac...
Calculation of the parameter deflection in a new theory of the Earth’s magnetic field
parameter deflection new theory Earth’s magnetic field
2009/11/12
In a recent paper on the theory of the Earth's magnetic field and key features of Sunspot activity (de Paor, 2001), a central role in the calculation of secular variations of the geomagnetic field was...
Effects of MHD slow shocks propagating along magnetic flux tubes in a dipole magnetic field
MHD slow shocks magnetic flux tubes dipole magnetic field
2009/11/12
Variations of the plasma pressure in a magnetic flux tube can produce MHD waves evolving into shocks. In the case of a low plasma beta, plasma pressure pulses in the magnetic flux tube generate MHD sl...
Modeling stretched solitary waves along magnetic field lines
stretched solitary waves magnetic field lines
2009/11/12
A model is presented for a new type of fast solitary waves which is observed in downward current regions of the auroral zone. The three-dimensional, coherent structures are electrostatic, have a posit...
Nonlinear waves and solitons propagating perpendicular to the magnetic field in bi-ion plasma with finite plasma pressure
Nonlinear waves solitons propagating perpendicular magnetic field bi-ion plasma plasma pressure
2009/11/12
We investigate the nature of nonlinear waves propagating transverse to the magnetic field in a bi-ion plasma including plasma pressure. By using the conservation laws derived from the multi-ion fluid ...
In a recent paper de Paor put forward a new theory of the Earth's magnetic field that depended on the Hall effect as an energy transfer mechanism. The purpose of this paper is to demonstrate that the ...
Clarification of the Hall effect as an energy transfer mechanism in a theory of the Earth’s magnetic field and sunspots
Hall effect energy transfer mechanism Earth’s magnetic field and sunspots
2009/11/12
Clarification is offered of the energy transfer role played by the Hall effect in a recent paper: de Paor, A., A theory of the Earth's magnetic field and of sunspots, based on a self-excited dynamo in...
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...
Multifractal structure of the large-scale heliospheric magnetic field strength fluctuations near 85AU
Multifractal structure magnetic field strength fluctuations 85AU
2009/11/11
During 2002, the Voyager 1 spacecraft was in the heliosphere between 83.4 and 85.9AU (1AU is the mean distance from the Sun to Earth) at 34° N heliographic latitude. The magnetic field strength profil...
Multipolar dance could flip Earth’s magnetic field（图）
Multipolar dance Earth’s magnetic field the Earth’s magnetic poles
2009/5/4
In this new proposal, it is not the turbulent flow but a second field known as a “quadrupole” that drives the reversal. Leading up to the flipping of the poles, the dipole reduces in intensity as the ...