Results 31 to 40 of about 9,578 (225)

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

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

Global Impacts of Ultra‐Low‐Frequency Waves: 1. Thermospheric Responses and Traveling Atmospheric Disturbances

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract Ultra‐low‐frequency (ULF) waves cause local Thermosphere‐Ionosphere (T‐I) perturbations, but their impacts on the global T‐I system including the generation of Traveling Atmospheric Disturbances (TADs) have never been evaluated. The mechanisms responsible for the TAD generation and propagation, whether through dynamic or thermal process, are ...
Haonan Wu, Wenbin Wang, Xueling Shi, Dong Lin, Michael D. Hartinger, Joseph B. H. Baker, Shibaji Chakraborty   +6 more
wiley   +1 more source

Geoeffectiveness of Interplanetary Alfvén Waves. I. Magnetopause Magnetic Reconnection and Directly Driven Substorms

The Astrophysical Journal, 2023
In particular during the descending phase of the solar cycle, Alfvén waves in the high-speed solar wind streams are a major form of interplanetary disturbances.
Lei Dai, Yimin Han, Chi Wang, Shuo Yao, Walter Gonzalez, Suping Duan, Benoit Lavraud, Yong Ren, Zhenyuan Guo   +8 more
doaj   +1 more source

On the Persistent Poloidal Alfven Waves

Geophysical Research Letters, 2021
AbstractStanding poloidal Alfven waves, radial oscillations with ultralow frequency of 5–20 mHz, are excited by wave‐particle interaction in the magnetosphere. It has been a question over several decades why poloidal oscillations often persist and are not quickly converted into toroidal waves even when there is no corresponding particle source.
Jiwon Choi, Dong‐Hun Lee
openaire   +1 more source

Europa is Embedded in Non‐Maxwellian, Anisotropic Electron Distributions

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract In September 2022, the Juno spacecraft flew by Europa, providing new insight into the electron pitch angle and energy distributions via the Jovian Auroral Distributions Experiment electron analyzers (JADE‐E). We fit these observations with two anisotropic kappa distributions (cold and hot), accounting for spacecraft potential, which we find to
S. P. Ellis, J. R. Szalay, G. Livadiotis, S. R. Carberry Mogan, F. Allegrini, R. W. Ebert, M. Horányi, D. J. McComas, T. Oberg, Y. Sarkango, A. H. Sulaiman   +10 more
wiley   +1 more source

Alfvén Wave Conversion to Low Frequency Fast Magnetosonic Waves in Magnetar Magnetospheres

The Astrophysical Journal
Rapid shear motion of magnetar crust can launch Alfvén waves into the magnetosphere. The dissipation of the Alfvén waves has been theorized to power the X-ray bursts characteristic of magnetars.
Dominic Bernardi, Yajie Yuan, Alexander Y. Chen   +2 more
doaj   +1 more source

Swirling astrophysical flows - efficient amplifiers of Alfven waves

, 2002
We show that a helical shear flow of a magnetized plasma may serve as an efficient amplifier of Alfven waves. We find that even when the flow is purely ejectional (i.e., when no rotation is present) Alfven waves are amplified through the transient, shear-
A. D. Rogava, Balbus, Balbus, Balogh, Belien, Bodo, Butler, Chagelishvili, Chagelishvili, Chagelishvili, Craik, Ferrari, G. Bodo, Hollweg, Kudoh, Lagnado, Mahajan, Mahajan, Marcus, Mikhailenko, Peter, Pike, Poedts, Poedts, Prikryl, Rogava, Rogava, Rogava, Rogava, Rogava, Ryutova, S. M. Mahajan, S. Massaglia, Saito, Tagger, Tagger, Tatsuno, van der Holst, Varnièr, Velli, Volponi   +40 more
core   +1 more source

Fluid Models for Kinetic Effects on Coherent Nonlinear Alfven Waves. II. Numerical Solutions [PDF]

, 1996
The influence of various kinetic effects (e.g. Landau damping, diffusive and collisional dissipation, and finite Larmor radius terms) on the nonlinear evolution of finite amplitude Alfvenic wave trains in a finite-beta environment is systematically ...
Diamond, P. H., Galinsky, V. L., Medvedev, M. V., Shevchenko, V. I.   +3 more
core   +2 more sources

Short‐Term Variability of Jupiter's Satellite Footprints as Spotted by JWST

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We present the main Alfvén wing (MAW) spots of Io and Europa as observed by the Near‐Infrared Spectrograph onboard the James Webb Space Telescope. These auroral footprint features have been measured previously, but only in emission. Here, the derived ionospheric H3+ ${\mathrm{H}}_{3}^{+}$ emission, temperature and column density are reported ...
Katie L. Knowles, H. Melin, T. S. Stallard, L. Moore, J. O’Donoghue, C. Schmidt, J. R. Szalay, P. I. Tiranti, K. Roberts, R. E. Johnson, E. M. Thomas   +10 more
wiley   +1 more source