Results 1 to 10 of about 740 (176)
Turbulence Upstream and Downstream of Interplanetary Shocks [PDF]
Frontiers in Physics, 2021 The paper reviews the interaction of collisionless interplanetary (IP) shocks with the turbulent solar wind. The coexistence of shocks and turbulence plays an important role in understanding the acceleration of particles via Fermi acceleration mechanisms,
A. Pitňa +4 more
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Shock waves propagation in the turbulent interplanetary plasma [PDF]
Astrophysics and Space Science, 1996 AbstractEffect of turbulence on interplanetary shock waves propagation is considered. It is shown that background turbulence results in the additional shock wave deceleration which may be comparable with the deceleration due to plasma sweeping. The turbulent deceleration is connected with the energy losses due to the strong turbulence amplification ...
Igor Chashei, V I Shishov, Shishov V I
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Characterization of the Transmission and Generation of Turbulence at Interplanetary Shocks
The Astrophysical JournalWe study the transmission and characteristics of turbulent magnetohydrodynamic (MHD) fluctuations from upstream to downstream regions of interplanetary (IP) shocks using the linear mode decomposition (LMD) technique of G. P. Zank et al.
Sujan Prasad Gautam +10 more
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Effect of interplanetary shock waves on turbulence parameters [PDF]
Annales GeophysicaeWe perform an extensive statistical investigation of how interplanetary fast forward shocks affect certain turbulence parameters, namely, the normalised cross-helicity, σc; residual energy, σr; and magnetic helicity, σm.
E. Kilpua +10 more
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TRANSPORT EQUATION FOR MHD TURBULENCE: APPLICATION TO PARTICLE ACCELERATION AT INTERPLANETARY SHOCKS
Astrophysical Journal, 2009 The aim of the present paper is to unify the various transport equations for turbulent waves that are used in different areas of space physics. Here, we mostly focus on the magnetohydrodynamic turbulence, in particular the Alfvenic turbulence. The applied methods, however, are general and can be extended to other forms of turbulence, for example the ...
Arcadi Usmanov, Igor Sokolov
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Interplanetary and interstellar plasma turbulence [PDF]
Plasma Physics and Controlled Fusion, 2007 Theoretical approaches to low-frequency magnetized turbulence in collisionless and weakly collisional astrophysical plasmas are reviewed. The proper starting point for an analytical description of these plasmas is kinetic theory, not fluid equations. The anisotropy of the turbulence is used to systematically derive a series of reduced analytical models.
Schekochihin, A, Cowley, S, Dorland, W
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The Astrophysical Journal, 2023 In this work, we extend Leighton’s diffusion model describing the turbulent mixing of magnetic footpoints on the solar wind source surface. The present Lagrangian stochastic model is based on the spherical Ornstein–Uhlenbeck process with drift that is ...
Gang Li, N. H. Bian
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Structure of the Turbulent Interplanetary Magnetic Field [PDF]
The Astrophysical Journal, 2006 We show that two widely used but apparently different models of the turbulent interplanetary magnetic field are closely related. One of these is the so-called quasi-static turbulence model, in which interplanetary magnetic field fluctuations are generated at a source surface near the Sun by random transverse plasma motions (such as supergranulation at ...
J. Giacalone +2 more
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The Astrophysical Journal, 2023 Understanding the magnetic connections from the Sun to interplanetary space is crucial for linking in situ particle observations with the solar source regions of the particles.
T. Laitinen +3 more
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Relationship of Transport Coefficients with Statistical Quantities of Charged Particles
The Astrophysical Journal, 2023 In previous studies, a general spatial transport equation was derived from the Fokker–Planck equation. The latter equation contains an infinite number of spatial derivative terms T _n = κ _nz ∂ ^n F /∂ z ^n with n = 1, 2, 3, ⋯ .
J. F. Wang, G. Qin
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