Results 21 to 30 of about 1,247 (219)

Interpretation of Flat Energy Spectra Upstream of Fast Interplanetary Shocks

The Astrophysical Journal, 2023
Interplanetary shocks are large-scale heliospheric structures often caused by eruptive phenomena at the Sun, and represent one of the main sources of energetic particles.
Silvia Perri, Giuseppe Prete, Gaetano Zimbardo, Domenico Trotta, Lynn B. Wilson III, David Lario, Sergio Servidio, Francesco Valentini, Joe Giacalone   +8 more
doaj   +1 more source

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

The Astrophysical Journal, 1998
With 1 figure; accepted by Astrophys. J.
Leamon, Robert J., Matthaeus, William H., Smith, Charles W., Wong, Hung K.   +3 more
openaire   +2 more sources

Multipoint Turbulence Analysis with HelioSwarm

The Astrophysical Journal Letters, 2023
Exploration of plasma dynamics in space, including turbulence, is entering a new era of multisatellite constellation measurements that will determine fundamental properties with unprecedented precision.
Francesco Pecora, Sergio Servidio, Leonardo Primavera, Antonella Greco, Yan Yang, William H. Matthaeus   +5 more
doaj   +1 more source

Quantifying scaling in the velocity field of the anisotropic turbulent solar wind [PDF]

, 2007
Solar wind turbulence is dominated by Alfvénic fluctuations with power spectral exponents that somewhat surprisingly evolve toward the Kolmogorov value of −5/3, that of hydrodynamic turbulence.
Hnat, B., Chapman, Sandra C.
core   +1 more source

Solar and Interplanetary Turbulence: Lagrangian Coherent Structures

, 2020
<p>The dynamics of solar and interplanetary plasmas is governed by coherent structures such as current sheets and magnetic flux ropes which are responsible for the genesis of intermittent turbulence via magnetic reconnections in solar supergranular junctions, solar coronal loops, the shock-sheath region of an interplanetary ...
Abraham C.‐L. Chian, L. R. Bellot Rubio, H. Q. Feng, Tiago F. P. Gomes, Milan Gošić, D. Grasso, Qiang Hu, K. Kusano, Rodrigo A. Miranda, Pablo R. Muñoz, Erico L. Rempel, D. Ruffolo, Suzana S. A. Silva, Dazhong Wu   +13 more
openaire   +2 more sources

Turbulence development behind the bow shock during disturbed and undisturbed solar wind

Solar-Terrestrial Physics
Magnetosheath is a transition layer between the solar wind and the magnetosphere and may contribute to the geoeffectiveness of various large-scale interplanetary phenomena.
Rakhmanova L. S., Khokhlachev A. A., Riazantseva M. O., Yermolaev Y. I., Zastenker G. N.   +4 more
doaj   +1 more source

Turbulence transport throughout the heliosphere

, 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., Oughton, Sean, Minnie, J., Smith, Charles W., Bieber, J.W., Isenberg, P.A., Breech, Ben   +6 more
core   +1 more source

Non-universality of the Turbulent Spectra at Sub-ion Scales in the Solar Wind: Dispersive Effects versus the Doppler Shift

The Astrophysical Journal, 2023
Large surveys of the power spectral density of the magnetic fluctuations in the solar wind have reported different slope distributions at MHD, sub-ion and sub-electron scales: the smaller the scale, the broader the distribution.
Fouad Sahraoui, Shiyong Huang
doaj   +1 more source

Dynamical age of solar wind turbulence in the outer heliosphere

, 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., Oughton, Sean, William H. Matthaeus, Smith, Charles W., Charles W. Smith, Sean Oughton   +5 more
core   +1 more source

Phenomenology of hydromagnetic turbulence in a uniformly expanding medium

, 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., Oughton, Sean, Zank, Gary P.   +2 more
core   +1 more source