Results 41 to 50 of about 11,735 (263)

Ion‐Scale Kinetic Alfvén Turbulence: MMS Measurements of the Alfvén Ratio in the Magnetosheath

Geophysical Research Letters, 2018
Turbulence in the Earth's magnetosheath at ion kinetic scales is investigated with the magnetospheric multiscale spacecraft. Several possibilities in the wave paradigm have been invoked to explain plasma turbulence at ion kinetic scales such as kinetic ...
O. W. Roberts, S. Toledo‐Redondo, D. Perrone, J. Zhao, Y. Narita, D. Gershman, R. Nakamura, B. Lavraud, C. P. Escoubet, B. Giles, J. Dorelli, C. Pollock, J. Burch   +12 more
doaj   +1 more source

Analysis of Magnetic Fields in Inertial Alfven Wave Collisions

, 2014
Turbulence in astrophysical and space plasmas is dominated by the nonlinear interaction of counterpropagating Alfven waves. Most Alfven wave turbulence theories have been based on ideal plasma models, such as incompressible MHD, for Alfven waves at large
Carter, Troy A., Dorfman, Seth, Drake, Dereth J., Howes, Gregory G., Kletzing, Craig A., Schroeder, James W. R., Shanken, Brian C., Skiff, Frederick   +7 more
core   +1 more source

Kinetically modified parametric instabilities of circularly-polarized Alfven waves: Ion kinetic effects [PDF]

, 2006
Parametric instabilities of parallel propagating, circularly polarized finite amplitude Alfven waves in a uniform background plasma is studied, within a framework of one-dimensional Vlasov description for ions and massless electron fluid, so that kinetic
Hada, Tohru, Nariyuki, Yasuhiro
core   +2 more sources

Dynamics of broadband dispersive Alfven waves

, 2006
The properties of amplitude modulated broadband Alfven waves is investigated. In particular, the dynamics of circularly polarized dispersive Alfven waves, governed by a derivative nonlinear Schroedinger equation, is analyzed using the Wigner formalism ...
Hada, Kaup, Klimontovich, Lashkin, Loudon, M. Marklund, Medvedev, Medvedev, Mio, Mjølhus, Moyal, P.K. Shukla, Rogister, Ruderman, Sakai, Spangler, Wigner   +16 more
core   +1 more source

Weak Alfvén-wave turbulence revisited [PDF]

Physical Review E, 2012
revtex, 5 pages, 2 figures ...
Schekochihin, A, Nazarenko, S, Yousef, T
openaire   +5 more sources

Alfven Wave-Driven Supernova Explosion

, 2007
We investigate the role of Alfven waves in the core-collapse supernova (SN) explosion. We assume that Alfven waves are generated by convections inside a proto-neutron star (PNS) and emitted from its surface. Then these waves propagate outwards, dissipate
Donati J.-F., Heyvaerts J., Hubrig S., Kohsuke Sumiyoshi, Moiseenko S. G., Shoichi Yamada, Takeru K. Suzuki   +6 more
core   +1 more source

Numerical simulations of conversion to Alfven waves in sunspots

, 2011
We study the conversion of fast magneto-acoustic waves to Alfven waves by means of 2.5D numerical simulations in a sunspot-like magnetic configuration. A fast, essentially acoustic, wave of a given frequency and wave number is generated below the surface
Avrett, Bellot Rubio, Cally, Cally, Cally, Cavallini, Centeno, Centeno, Centeno, Collados, Cranmer, E. Khomenko, Felipe, Felipe, Felipe, Fujimura, Hansen, Jefferies, Khomenko, Khomenko, Khomenko, Khomenko, Khomenko, Khomenko, Khomenko, Manso Sainz, Mihalas, Norton, P. S. Cally, Parchevsky, Priest, Socas-Navarro, Socas-Navarro, Trujillo Bueno, Van Doorsselaere, Zhugzhda, Štěpán   +36 more
core   +1 more source

Weak compressible magnetohydrodynamic turbulence in the solar corona

, 2005
This Letter presents a calculation of the power spectra of weakly turbulent Alfven waves and fast magnetosonic waves ("fast waves") in low-beta plasmas.
Benjamin D. G. Chandran, J. Shebalin, V. E. Zakharov, V. E. Zakharov   +3 more
core   +1 more source

The role of damped Alfven waves on magnetospheric accretion models of young stars [PDF]

, 2002
We examine the role of Alfven wave damping in heating the plasma in the magnetic funnels of magnetospheric accretion models of young stars. We study four different damping mechanisms of the Alfven waves: nonlinear, turbulent, viscous-resistive and ...
Basri G., Burke A. T., Camenzind M., dos Santos L. C., Goncalves D. R., Guenther E. W., Hollweg J. V., Jafelice L. C., Jatenco-Pereira V., Jatenco-Pereira V., Lynden-Bell D., M. J. Vasconcelos, R. Opher, Scheurwater R., Umebayashi T., V. Jatenco‐Pereira   +15 more
core   +2 more sources

Simultaneous Compressive Kinetic‐Scale Fluctuations and Second‐Harmonic Proton Cyclotron Waves Inside a Martian Magnetosheath Structure

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Mars directly interacts with the solar wind and hosts a complex plasma‐wave environment. Using MAVEN observations, we identify an event in the dusk‐side Martian magnetosheath where strongly compressive sub‐cyclotron kinetic‐scale fluctuations coexist with second‐harmonic proton cyclotron waves (PCWs).
Jintian Yang, Song Fu, Xiaotong Yun, Taifeng Jin, Hui Zhang, Shuyue Pang, Yuequn Lou, Longfei Jia, Yibin Zhao, Yi Qin, Binbin Ni   +10 more
wiley   +1 more source