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Model for vortex turbulence with discontinuities in the solar wind
vortex turbulence discontinuities in the solar wind
2009/11/12
A model of vortex with embedded discontinuities in plasma flow is developed in the framework of ideal MHD in a low b plasma. Vortex structures are considered as a result of 2-D evolution of nonlinear ...
The small amplitude of density turbulence in the inner solar wind
small amplitude density turbulence inner solar wind
2009/11/11
Very Long Baseline Interferometer (VLBI) observations were made of radio sources close to the Sun, whose lines of sight pass through the inner solar wind (impact parameters 16-26 RE). Power spectra we...
On ion-cyclotron-resonance heating of the corona and solar wind
ion-cyclotron-resonance heating corona solar wind
2009/11/11
This paper concisely summarizes and critically reviews recent work by the authors on models of the heating of the solar corona by resonance of ions with high-frequency waves (up to the proton cyclotro...
Parallel and perpendicular cascades in solar wind turbulence
Parallel and perpendicular cascades solar wind turbulence
2009/11/9
MHD-scale fluctuations in the velocity, magnetic, and density fields of the solar wind are routinely observed. The evolution of these fluctuations, as they are transported radially outwards by the sol...
A nonextensive entropy path to probability distributions in solar wind turbulence
nonextensive entropy path probability distributions solar wind turbulence
2009/11/9
The observed scale dependence of the probability distributions of the differences of characteristic solar wind variables is analyzed. Intermittency of the turbulent fluctuations at small-scale spatial...
The solar wind serves as a laboratory for investigating magnetohydrodynamic turbulence under conditions irreproducible on the terra firma. Here we show that the frame work of Hall magnetohydrodynamics...
Multifractality and intermittency in the solar wind
Multifractality intermittency solar wind
2009/11/3
Within the complex dynamics of the solar wind's fluctuating plasma parameters, there is a detectable, hidden order described by a chaotic strange attractor which has a multifractal structure. The mult...
Asymmetric multifractal model for solar wind intermittent turbulence
Asymmetric multifractal model solar wind intermittent turbulence
2009/11/2
We consider nonuniform energy transfer rate for solar wind turbulence depending on the solar cycle activity. To achieve this purpose we determine the generalized dimensions and singularity spectra for...
Statistical analysis of transfer of fluctuations in solar wind turbulence
Statistical analysis transfer fluctuations solar wind turbulence
2009/11/2
We present results of statistical analysis of the transfer of fluctuations in solar wind turbulence. We investigate the dynamics of the slow solar wind using an approach based on the Markov processes ...
The effect of upstream turbulence and its anisotropy on the efficiency of solar wind–magnetosphere coupling
upstream turbulence anisotropy efficiency of solar wind magnetosphere coupling
2009/11/2
The importance of space weather and its forecasting is growing as interest in studying geoeffective processes in the Sun – solar wind – magnetosphere – ionosphere coupled system is increasing. This pa...
Solar cycle dependence of scaling in solar wind fluctuations
Solar cycle dependence scaling solar wind fluctuations
2009/11/2
In this review we collate recent results for the statistical scaling properties of fluctuations in the solar wind with a view to synthesizing two descriptions: that of evolving MHD turbulence and that...
Solar wind vs magnetosheath turbulence and Alfvén vortices
Solar wind magnetosheath turbulence Alfvén vortices
2009/10/30
In this paper we give firstly a broad review of the space plasma turbulence around the ion characteristic space and temporal scales within two natural laboratories, the solar wind and the Earth magnet...
The influence of solar wind turbulence on geomagnetic activity
solar wind turbulence geomagnetic activity
2009/10/30
The importance of space weather and its forecasting is growing as interest in studying geoeffective processes in the Sun – solar wind – magnetosphere – ionosphere coupled system is increasing. In this...
Plasma waves above the ion cyclotron frequency in the solar wind:a review on observations
Plasma waves ion cyclotron frequency solar wind
2009/10/30
Since the very beginning of the space venture, discrepancies between hydrodynamic models and observations have raised the attention to the kinetic effects taking place in the interplanetary medium. Af...
A probabilistic approach to heterogeneity in space plasmas:the case of magnetic field intensity in solar wind
probabilistic approach heterogeneity space plasmas magnetic field intensity
2009/10/30
Since the early 90s it was shown that Probability Distribution Functions (PDFs) of small scale differences (fluctuations) of several quantities in space plasmas display significant departures from Gau...