Results 11 to 20 of about 267,892 (208)

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.
Marsch, E., Tu, C.
openaire   +2 more sources

Kinematic models of the interplanetary magnetic field [PDF]

open access: yesAnnales Geophysicae, 2019
Current knowledge on the description of the interplanetary magnetic field is reviewed with an emphasis on the kinematic approach as well as the analytic expression.
C. Lhotka, Y. Narita
doaj   +1 more source

Cosmic ray fluctuations and MHD waves in the solar wind

open access: yesSolar-Terrestrial Physics, 2023
During large-scale solar wind disturbances, variations in galactic cosmic rays with periods from several minutes to 2–3 hours, which are called cosmic ray fluctuations in the scientific literature, often occur.
Starodubtsev S. A.   +3 more
doaj   +1 more source

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 ...
Matthaeus, William H.   +6 more
core   +2 more sources

Dynamical age of solar wind turbulence in the outer heliosphere [PDF]

open access: yes, 1998
In an evolving turbulent medium, a natural timescale can be defined in terms of the energy decay time. The time evolution may be complicated by other effects such as energy supply due to driving, and spatial inhomogeneity.
Matthaeus, William H.   +5 more
core   +1 more source

Developments in the use of EISCAT for interplanetary scintillation [PDF]

open access: yes, 2008
The antennas of EISCAT have been used for interplanetary scintillation (IPS) studies of the solar wind for many years. The main science found from these studies is obtained through the cross-correlation of signals from antennas having the longest ...
Fallows, R. A.   +2 more
core   +6 more sources

Change of Spectral Properties of Magnetic Field Fluctuations across Different Types of Interplanetary Shocks

open access: yesThe Astrophysical Journal Letters, 2023
The interaction between interplanetary (IP) shocks and the solar wind has been studied in the past for the understanding of energy dissipation mechanisms within collisionless plasmas.
Byeongseon Park   +7 more
doaj   +1 more source

Phenomenology of hydromagnetic turbulence in a uniformly expanding medium [PDF]

open access: yes, 1996
A simple phenomenology is developed for the decay and transport of turbulence in a constant-speed, uniformly expanding medium. The fluctuations are assumed to be locally incompressible, and either of the hydrodynamic or non-Alfvénic magnetohydrodynamic ...
Matthaeus, William H.   +2 more
core   +1 more source

Nature, Generation, and Dissipation of Alfvénic Kinks/Switchbacks Observed by Parker Solar Probe and WIND

open access: yesThe Astrophysical Journal, 2023
The discovery of very prominent magnetic kinks/switchbacks in the solar wind within 0.3 au has become a scientific highlight of the Parker Solar Probe (PSP) mission. This discovery points at the promising impact of small-scale solar activity on the inner
Chuanpeng Hou   +5 more
doaj   +1 more source

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