Results 181 to 190 of about 9,642 (217)

Turbulent Generation of Outward-Traveling Interplanetary Alfvénic Fluctuations

Physical Review Letters, 1983
Additional evidence is presented for the dynamic alignment of the fluctuating plasma fluid velocity and the fluctuating magnetic field in two-dimensional MHD turbulence. The evidence is seen as indicating that the interplanetary fluctuations need not represent time-asymptotic states. Rather, it is contended that interplanetary Alfvenic fluctuations are
William H. Matthaeus, Melvyn L. Goldstein, David C. Montgomery   +2 more
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Turbulence in the Interplanetary Medium: Can Discrete Modes Co-Exist With Turbulence?

AIP Conference Proceedings, 2011
Spacecraft observations during the last decade suggest the presence of discrete frequency wave‐like signals embedded in turbulent solar wind fluctuations. A basic plasma physics question immediately arises how a single monochromatic wave mode can survive in the presence of magnetofluid turbulence.
S. Ghosh, D. J. Thomson, W. H. Matthaeus, L. J. Lanzerotti, Dimitris Vassiliadis, Shing F. Fung, Xi Shao, Ioannis A. Daglis, Joseph D. Huba   +8 more
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Dissipation of interplanetary turbulence by pick-up ions

Advances in Space Research, 1997
Abstract The interaction of MHD waves with pick-up ions in the outer heliosphere is considered. The transport equation for wave energy density describes non-linear wave interaction and wave dissipation due to the resonant interaction with pick-up ions.
V.S. Ptuskin, S.I. Rogovaya, V.N. Zirakashvili, J.A. Le Roux   +3 more
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ULF Disturbances Caused by the Turbulent Sheath of Interplanetary Magnetic Clouds

Bulletin of the Russian Academy of Sciences: Physics, 2021
Simultaneous disturbances of the total electron content and the horizontal component of geomagnetic field in the range of Pc6 are registered during periods of magnetospheric substorms. Such disturbances arise in intervals of interaction between Earth’s magnetosphere and the turbulent sheath of magnetic clouds.
O. M. Barkhatova, V. G. Vorobjev, N. A. Barkhatov, S. E. Revunov   +3 more
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Turbulent spectra of the solar wind near interplanetary shocks

2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC), 2015
The solar wind is a supersonic and super-Alfvenic plasma flow of solar origin filling the whole heliosphere. It has a strong turbulent character with several energy cascades. Interplanetary (IP) shocks are characterized by abrupt changes of plasma parameters and the magnetic field strength.
O. Kruparova, V. Krupar, J. Safrankova, Z. Nemecek, O. Santolik, M. Maksimovic, J. Soucek   +6 more
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Models of inertial range spectra of interplanetary magnetohydrodynamic turbulence

Journal of Geophysical Research: Space Physics, 1990
Recently developed transport theories for small‐scale solar wind fluctuations explicitly treat convection, expansion, and other interactions with large‐scale gradients, while separating nonlinear effects associated with triple correlations of the fluctuations.
Ye Zhou, William H. Matthaeus
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On the interaction of interplanetary shocks and solar wind turbulence

2021
<p>The propagation of collisionless shocks through the turbulent magnetized plasmas has been investigated for decades. The processes connected with the formation and propagation of Interplanetary (IP) shocks play a key role in the acceleration of particles and in the coupling to the Earth’s magnetosphere.
Alexander Pitna, Jana Šafránková, Zdeněk Němeček   +2 more
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On the origin of turbulent fields in interplanetary plasmas

AIP Conference Proceedings, 2008
Solar coronal mass ejections are prominent example of interpenetrating particle streams with different properties: densities, speeds, temperature and composition. Such counterstreaming plasmas are quickly unstable leading to the excitation of the electrostatic and electromagnetic instabilities.
M. Lazar, Vasile Mioc, Cristiana Dumitrache, Nedelia A. Popescu   +3 more
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Turbulent cascade of incompressible unidirectional Alfvén waves in the interplanetary medium

Physical Review Letters, 1989
The large-scale inhomogeneity of the solar wind is taken into account to estimate the turbulent flux due to nonlinear interactions among purely outward-traveling waves. The nonlinear interactions are mediated by secondary, incoming waves generated by the linear coupling of the dominant species to the large-scale gradients.
, Velli, , Grappin, , Mangeney
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Turbulence associated with interplanetary shock waves within 1 AU

Advances in Space Research, 1984
Abstract The nature and strength of low-frequency MHD turbulence in association with fast-forward, oblique shock waves is investigated using Helios 1 magnetic field and plasma data. Power and coherence spectra were computed and compared for the pre- and post-shock regions for the magnetic field, velocity and density fluctuations in the frequency ...
A. Luttrell, A.K. Richter, H. Rosenbauer, F.M. Neubauer   +3 more
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