Results 11 to 20 of about 8,815 (178)

MHD Turbulence in the Solar Wind and Interplanetary Dynamo Effects [PDF]

open access: yesSymposium - International Astronomical Union, 1993
From the fluctuations of the velocity and magnetic field observed in different kinds of solar wind the fluctuating electric fields are derived, and their power spectra are constructed and analysed. The mean electromotive force ɛ generated by the turbulent motions depends upon the nature of the fluctuations.
C.-Y. Tu, E. Marsch
openaire   +2 more sources

Study of the magnetic turbulence in a corotating interaction region in the interplanetary medium [PDF]

open access: yesAnnales Geophysicae, 1999
Abstract. We study the geometry of magnetic fluctuations in a CIR observed by Pioneer 10 at 5 AU between days 292 and 295 in 1973. We apply the methodology proposed by Bieber et al. to make a comparison of the relative importance of two geometric arrays of vector propagation of the magnetic field fluctuations: slab and two-dimensional (2D).
J. F. Valdés-Galicia   +2 more
openaire   +5 more sources

Multiple spacecraft observations of interplanetary shocks: Characteristics of the upstream ULF turbulence [PDF]

open access: yes, 1982
All interplanetary shocks observed by ISEE-3 and either ISEE-1 or ISEE-2 or both in 1978 and 1979 are examined for evidence of upstream waves. In order to characterize the properties of these shocks it is necessary to determine accurate shock normals. An
Bame, S. J.   +4 more
core   +2 more sources

Contribution of Cyclotron-resonant Damping to Kinetic Dissipation of Interplanetary Turbulence [PDF]

open access: yesThe Astrophysical Journal, 1998
With 1 figure; accepted by Astrophys. J.
Robert J. Leamon   +3 more
openaire   +3 more sources

von Karman Correlation Similarity of the Turbulent Interplanetary Magnetic Field

open access: yesThe Astrophysical Journal Letters, 2021
Abstract A major development underlying much of hydrodynamic turbulence theory is the similarity decay hypothesis due to von Karman and Howarth here extended empirically to magnetic field fluctuations in the solar wind. In similarity decay the second-order correlation experiences a continuous transformation based on a universal ...
Sohom Roy   +4 more
openaire   +3 more sources

Persistence of small-scale anisotropy of magnetic turbulence as observed in the solar wind [PDF]

open access: yes, 2006
The anisotropy of magnetophydrodynamic turbulence is investigated by using solar wind data from the Helios 2 spacecraft. We investigate the behaviour of the complete high-order moment tensors of magnetic field increments and we compare the usual ...
Biskamp D.   +11 more
core   +2 more sources

Turbulence transport throughout the heliosphere [PDF]

open access: yes, 2007
We employ a turbulence transport model to compute distributions of turbulence throughout the heliosphere. The model determines the radial dependence of three (coupled) quantities that characterize interplanetary turbulence, the energy per unit mass, the ...
Bieber, J.W.   +6 more
core   +1 more source

Solar Orbiter: Exploring the Sun-heliosphere connection [PDF]

open access: yes, 2012
The heliosphere represents a uniquely accessible domain of space, where fundamental physical processes common to solar, astrophysical and laboratory plasmas can be studied under conditions impossible to reproduce on Earth and unfeasible to observe from ...
Gilbert, H. R.   +3 more
core   +4 more sources

A semi-analytical foreshock model for energetic storm particle events inside 1 AU [PDF]

open access: yes, 2014
We have constructed a semi-analytical model of the energetic-ion foreshock of a CME-driven coronal/interplanetary shock wave responsible for the acceleration of large solar energetic particle (SEP) events.
Aran   +28 more
core   +2 more sources

Statistical properties of solar wind discontinuities, intermittent turbulence, and rapid emergence of non-Gaussian distributions [PDF]

open access: yes, 2010
Recent studies have compared properties of the magnetic field in simulations of Hall MHD turbulence with spacecraft data, focusing on methods used to identify classical discontinuities and intermittency statistics.
Chuychai, P.   +6 more
core   +3 more sources

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