Results 101 to 110 of about 278,597 (210)

Mirroring in the Fokker-Planck coefficient for cosmic-ray pitch-angle scattering in homogeneous magnetic turbulence

, 1975
The Fokker-Planck coefficient for pitch-angle scattering, appropriate for cosmic rays in homogeneous stationary magnetic turbulence is computed without making any specific assumptions concerning the statistical symmetries of the random field.
Sandri, G., Goldstein, Melvyn, Klimas, A. J.   +2 more
core   +1 more source

Two Pathways of Turbulent Energy Processing in Solar Wind Current Sheets: Confined Fragmentation versus Organized Transport

The Astrophysical Journal
Understanding how turbulent energy is dissipated in the heliosphere remains a central challenge in space plasma physics. While magnetic reconnection and other dissipative processes occurring within current sheets are widely regarded as leading channels ...
Y. Wang, L. D. Wang, F. S. Wei, X. S. Feng, W. Y. Zhang, B. Y. Wang, P. B. Zuo, X. J. Xu, Z. L. Zhou   +8 more
doaj   +1 more source

Small-scale solar wind density turbulence spectrum from interplanetary scintillation observations

, 2012
The method of determining the angular sizes of compact radio sources and parameters of the plasma turbulence using temporal scintillation power spectra is described and tested.
Chashei, I.V., Glubokova, S.K., Tyul'bashev, S.A.   +2 more
core  

Particle acceleration at interplanetary shocks [PDF]

, 2007
This paper briefly reviews proton acceleration at interplanetary shocks. This is key to describing the acceleration of heavy ions at interplanetary shocks because wave excitation-and hence particle scattering-at oblique shocks is controlled by the ...
Zank, G. P., Li, Gang, Verkhoglyadova, Olga   +2 more
core   +1 more source

The Density Distribution of Compressively Forced, Supersonic Turbulence Depends on the Driving Correlation Time

The Astrophysical Journal
Supersonic turbulence plays a critical role in shaping astrophysical systems, from molecular clouds to the circumgalactic medium. Key properties of this turbulence include the Mach number, driving scale, and nature of the driving mechanism, which can be ...
Philipp Grete, Evan Scannapieco, Marcus Brüggen, Liubin Pan   +3 more
doaj   +1 more source

Evolution of the Interplanetary Turbulence and the Associated Turbulence Anisotropy in the Outer Heliosphere: VOYAGER 2 Observations

The Astrophysical Journal
Abstract We study the radial evolution of the inertial-range solar wind plasma turbulence and its anisotropy in the outer heliosphere. We use magnetic field ( B ) measurements from the Voyager 2 spacecraft for heliocentric distances R from 1 to 33 au.
Xingyu Zhu, Jiansen He, Gary P. Zank, Daniel Verscharen, Ling-Ling Zhao, Die Duan, Rong Lin   +6 more
openaire   +3 more sources

Evolution of Solar Wind Turbulence during Radial Alignment of Parker Solar Probe and Solar Orbiter in 2022 December

The Astrophysical Journal Supplement Series
We investigate the radial evolution of solar wind turbulence during the radial alignment of Parker Solar Probe (PSP) and Solar Orbiter (SO) on 2022 December 10, with PSP located at approximately 0.11 au and SO near 0.88 au.
Ashok Silwal, Lingling Zhao, Xingyu Zhu, Luca Sorriso-Valvo, Lina Z. Hadid, Gary P. Zank, Hui Li, Samuel T. Badman, Yeimy J. Rivera, Sujan Prasad Gautam, Monika Karki, Juan G Alonso Guzman, Nibuna S. M. Subashchandar, Zeping Jin   +13 more
doaj   +1 more source

Influence of Solar Cycle on Magnetohydrodynamic Turbulent Modes at 1 au

The Astrophysical Journal
We study the effect of the solar cycle on various magnetohydrodynamic (MHD) fluctuation modes using the linear mode decomposition technique developed by G. P. Zank et al.
Sujan Prasad Gautam, Gary P. Zank, Laxman Adhikari, Alexander Pitňa, Ashok Silwal   +4 more
doaj   +1 more source

Solar cycle evolution of ICME sheath regions at 1 AU

Astronomy & Astrophysics
Aims. We investigate the evolution of interplanetary coronal mass ejection (ICME) sheath regions at 1 AU across solar cycles 23, 24, and the rising phase of 25, focusing on their variability and turbulence in relation to upstream solar wind conditions ...
Larrodera C., Temmer M., Owens M.
doaj   +1 more source

An Improved Fit to the Density Fluctuations in Supersonic Isothermal Turbulence

The Astrophysical Journal
The density distribution of supersonic isothermal turbulence plays a critical role in many astrophysical systems. It is commonly approximated by a log-normal distribution with a variance of ${\sigma }_{s,{\rm{V}}}^{2}\approx \mathrm{ln}(1+{b}^{2}{M}_ ...
Evan Scannapieco, Marcus Brüggen, Philipp Grete, Liubin Pan   +3 more
doaj   +1 more source