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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...
MHD turbulence and heating of the open field-line solar corona
MHD turbulence open field-line solar corona
2009/11/11
This paper discusses the possibility that heating of the solar corona in open field-line regions emanating from coronal holes is due to a nonlinear cascade, driven by low-frequency or quasi-static mag...
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...
The strange physics of low frequency mirror mode turbulence in the high temperature plasma of the magnetosheath
strange physics low frequency mirror mode turbulence high temperature plasma
2009/11/11
Mirror mode turbulence is the lowest frequency perpendicular magnetic excitation in magnetized plasma proposed already about half a century ago by Rudakov and Sagdeev (1958) and Chandrasekhar et al. (...
Excitation of kinetic Alfvén turbulence by MHD waves and energization of space plasmas
kinetic Alfvén turbulence MHD waves energization of space plasmas
2009/11/11
There is abundant observational evidence that the energization of plasma particles in space is correlated with an enhanced activity of large-scale MHD waves. Since these waves cannot interact with par...
Spectrum of Kelvin-wave turbulence in superfluids
Spectrum Kelvin-wave turbulence superfluids
2010/4/7
We derive a type of kinetic equation for Kelvin waves on quantized vortex filaments with random large-scale curvature, that describes step-by-step (local) energy cascade over scales caused by 4-wave i...
Formation of quasi-power law weak Langmuir turbulence spectrum by harmonic generation
quasi-power law weak Langmuir turbulence spectrum harmonic generation
2009/11/11
Langmuir wave turbulence generated by a beam-plasma interaction has been studied since the early days of plasma physics research. Despite a long history of investigation on this subject, among the out...
The question of which length scale equation to use in models of turbulence has long been controversial and several approaches have been suggested and used in the past. In this paper, we demonstrate th...
Rossby-wave turbulence in a rapidly rotating sphere
Rossby-wave turbulence rapidly rotating sphere
2009/11/11
We use a quasi-geostrophic numerical model to study the turbulence of rotating flows in a sphere, with realistic Ekman friction and bulk viscous dissipation. The forcing is caused by the destabilizati...
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...
Intermittency in MHD turbulence and coronal nanoflares modelling
Intermittency MHD turbulence coronal nanoflares modelling
2009/11/9
High resolution numerical simulations, solar wind data analysis, and measurements at the edges of laboratory plasma devices have allowed for a huge progress in our understanding of MHD turbulence. The...
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...
Turbulence in nearly incompressible fluids:density spectrum,flows,correlations and implication to the interstellar medium
nearly incompressible fluids density spectrum flows correlations implication interstellar medium
2009/11/9
Interstellar scintillation and angular radio wave broadening measurements show that interstellar and solar wind (electron) density fluctuations exhibit a Kolmogorov-like k-5/3 power spectrum extending...
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...
Non-Kolmogorov atmospheric turbulence and optical signal propagation
Non-Kolmogorov atmospheric turbulence optical signal propagation
2009/11/9
In the present review, we make an attempt to attract attention to the effect of non-Kolmogorov behavior of turbulence in various scales on the characteristics of electromagnetic waves propagation thro...