Results 31 to 40 of about 670,718 (179)

Ion acceleration by parallel propagating nonlinear Alfvén wave packets in a radially expanding plasma [PDF]

Nonlinear Processes in Geophysics, 2014
The numerical simulation of the nonlinear evolution of the parallel propagating Alfvén waves in a radially expanding plasma is performed by using a kinetic-fluid model (the Vlasov–MHD model). In our study, both the nonlinear evolution of the Alfvén waves
Y. Nariyuki, T. Umeda, T. K. Suzuki, T. Hada   +3 more
doaj   +1 more source

Nonlinear propagation of short wavelength drift-Alfven waves

, 1986
Making use of a kinetic ion and a hydrodynamic electron description together with the Maxwell equation, the authors derive a set of nonlinear equations which governs the dynamics of short wavelength ion drift-Alfven waves.
Juul Rasmussen, Jens, Pecseli, H. L., Shukla, P. K.   +2 more
core   +1 more source

The Spatial Localization of Storm‐Time ULF Waves Due To Plasmaspheric Plumes

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract The generation and propagation of Ultra Low Frequency (ULF) waves are intrinsically coupled to the cold plasma population in the terrestrial magnetosphere. During geomagnetic storms, extreme reconfigurations of the cold plasma create a complex and dynamic system that drastically modifies this coupling.
J. K. Sandhu, K. R. Murphy, I. J. Rae, T. K. Yeoman, A. W. Degeling, A. Osmane, D. P. Hartley, M.‐T. Walach   +7 more
wiley   +1 more source

Suprathermal Electron Acceleration Comparison of the Venusian and Terrestrial Bow Shocks

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract We study suprathermal electron acceleration at the Venusian bow shock using the Parker Solar Probe gravity assists and the Venus Express spacecraft mission. The acceleration is classified by measuring the maximum energy and the power‐law spectral slope (index) of the electron phase space density immediately downstream of the shocks for ...
M. Lindberg, H. Hietala, S. Nyberg, Y. Futaana, H. George   +4 more
wiley   +1 more source

Surface Alfven waves in solar flux tubes

, 2012
Magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere. Alfven waves and magneto-sonic waves are particular classes of MHD waves. These wave modes are clearly different and have pure properties in uniform plasmas of infinite extent only ...
Andries, J, Arregui, I, Terradas, J, Goossens, M, Soler, R, Andries, Jesse, Goossens, M., Van Doorsselaere, T, Soler, R., Arregui, I., Terradas, J., Van Doorsselaere, Tom   +11 more
core   +1 more source

Swing coupling of sound and Alfven waves

, 2002
The weakly nonlinear interaction of sound and linearly polarized Alfven waves propagating along an applied magnetic field is studied in the case when the sound and Alfven speeds are equal.
Zaqarashvili, TV, Roberts, Bernard
core   +2 more sources

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

Van Allen Probes Observations of a Fundamental Poloidal Wave in the Plasmasphere

Journal of Geophysical Research: Space Physics, Volume 131, Issue 11, November 2026.
Abstract All past spacecraft observations of fundamental poloidal Alfvén (P1) waves attributed to ion drift resonance have been made outside the plasmasphere. In this study, we present the first spacecraft observations of a plasmaspheric P1 wave driven by that resonance.
Kazue Takahashi, Tomotsugu Yamakawa, Matina Gkioulidou, D. G. Mitchell, Jerry W. Manweiler   +4 more
wiley   +1 more source

Coronal Alfven waves and the solar wind [PDF]

, 1972
The observed properties of coronal Alfven waves in the solar wind at 1 AU are briefly reviewed, with some theoretical discussion of their probable effects on the dynamics of the expanding solar corona. It is concluded that coronal Alfven waves can have a
Belcher, J. W.
core  

Measurement of Energy Reduction of Inertial Alfvén Waves Propagating through Parallel Gradients in the Alfvén Speed

The Astrophysical Journal
We have studied the propagation of inertial Alfvén waves through parallel gradients in the Alfvén speed using the Large Plasma Device at the University of California, Los Angeles. The reflection and transmission of Alfvén waves through inhomogeneities in
Garima Joshi, Sayak Bose, Troy Carter, Daniel Wolf Savin, Shreekrishna Tripathi, Stephen Vincena, Michael Hahn   +6 more
doaj   +1 more source