Results 91 to 100 of about 1,247 (219)

Dynamics of Slow Solar Wind Emerging from an Equatorial Coronal Hole

open access: yesThe Astrophysical Journal
We present a three-dimensional reduced magnetohydrodynamics model to depict turbulence induced by Alfvén waves within the slow solar wind originating from an open magnetic field positioned in a coronal hole near the solar equator.
M. Asgari-Targhi, K. Fujiki
doaj   +1 more source

Radial evolution of cross helicity at low and high latitudes in the solar wind

open access: yes, 2005
We employ a turbulence transport theory to the radial evolution of the solar wind at both low and high latitudes. The theory includes cross helicity, magnetohydrodynamic (MHD) turbulence, and driving by shear and pickup ions. The radial decrease of cross
Matthaeus, William H.   +6 more
core  

Characteristics of plasma turbulence and radio emission from an interplanetary shock wave

open access: yes, 2007
Aims.We investigate the characteristics of energetic electron beams, plasma turbulence and radio emission from interplanetary shock waves. Methods.Numerical calculations of spectra and Landau damping of hot plasma eigen oscillations in the ...
V. M. Tomozov   +3 more
core   +1 more source

Radial Evolution of Turbulence Spectra on the Jovian Magnetosheath Flanks: Juno Observations

open access: yesThe Astrophysical Journal
The Jovian magnetosheath provides a unique environment for examining the radial evolution of magnetosheath turbulence due to its large spatial extent.
Hui Li   +3 more
doaj   +1 more source

On the Formation of Super-Alfvénic Flows Downstream of Collisionless Shocks

open access: yesThe Astrophysical Journal
Super-Alfvénic jets, with kinetic energy densities significantly exceeding that of the solar wind, are commonly generated downstream of Earth's bow shock under both high- and low-beta plasma conditions. In this study, we present theoretical evidence that
Adnane Osmane, Savvas Raptis
doaj   +1 more source

An analytical, phenomenological and numerical study of geophysical and magnetohydrodynamic turbulence in two dimensions

open access: yes, 2013
In this thesis I study a variety of two-dimensional turbulent systems using a mixed analytical, phenomenological and numerical approach. The systems under consideration are governed by the two-dimensional Navier-Stokes (2DNS), surface quasigeostrophic
Blackbourn, Luke A. K.
core  

Intermittent character of interplanetary magnetic field fluctuations

open access: yes, 2007
Interplanetary magnetic field magnitude fluctuations are notoriously more intermittent than velocity fluctuations in both fast and slow wind. This behavior has been interpreted in terms of the anomalous scaling observed in passive scalars in fully ...
Bogdan Hnat   +16 more
core   +1 more source

Spectral Anisotropy at Ion Scales in the Solar Wind Upstream of the Martian Bow Shock

open access: yesThe Astrophysical Journal
The spectral anisotropy of magnetic field fluctuations at ion scales in the solar wind upstream of the Martian bow shock remains poorly understood. In the solar wind near the Earth’s orbit, such anisotropy is known to be modulated by ion-scale waves ...
Hua Zhang   +3 more
doaj   +1 more source

A Complete Theory for Nondiffusive Field Line Random Walk in Magnetic Turbulence

open access: yesThe Astrophysical Journal
Previous analytical and numerical investigations of the stochastic properties of field lines in magnetic turbulence have been based on determining the running field-line diffusion coefficient.
A. Shalchi
doaj   +1 more source

Turbulent accumulation of interplanetary magnetic fluxes at the Venus ionopause

open access: yesGeophysical Research Letters, 1981
The accumulation of interplanetary magnetic fluxes around the Venus ionopause is examined in the light of the PVO magnetometer and plasma wave measurements. It is argued that convective electric currents within the ionosphere are not sufficient to account for the observed geometry of the magnetic profiles. It is suggested that turbulent flow conditions
openaire   +1 more source

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