Results 41 to 50 of about 10,009 (174)

Two-fluid temperature-dependent relativistic waves in magnetized streaming pair plasmas [PDF]

open access: yes, 2010
A relativistic two-fluid temperature-dependent approach for a streaming magnetized pair plasma is considered. Such a scenario corresponds to secondary plasmas created at the polar caps of pulsar magnetospheres.
Hazeltine, R. D.   +2 more
core   +1 more source

Absolute and convective instabilities of parallel propagating circularly polarized Alfvén waves: numerical results [PDF]

open access: yes, 2006
Context.The stability of parallel propagating circularly polarized Alfvén waves (pump waves) has been studied for more than four decades with the use of normal mode analysis.
Belcher   +42 more
core   +1 more source

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

open access: yesGeophysical 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   +10 more
wiley   +1 more source

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

open access: yesThe 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   +8 more
doaj   +1 more source

Fine-scale cavitation of ionospheric plasma caused by inertial Alfvén wave ponderomotive force [PDF]

open access: yes, 1998
Deep, very narrow magnetic-field-aligned density depletions were observed by the Freja spacecraft during auroral oval crossings. These cavities have perpendicular width of the order of the electron skin depth c/ωpe and are associated with low-frequency ...
Bellan, P. M., Stasiewicz, K.
core   +1 more source

Evolution of Magnetospheric Boundary Layers Under the 10 May 2024 ICME Impact

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract On 10 May 2024, an interplanetary coronal mass ejection‐driven shock impacted the dayside magnetopause, compressing it to ∼5 RE. A northward interplanetary magnetic field suppressed dayside reconnection and allowed a clear investigation of the magnetosphere response.
Sheng Li   +5 more
wiley   +1 more source

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

open access: yesThe 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   +2 more
doaj   +1 more source

Auroral vortex street formed by the magnetosphere–ionosphere coupling instability [PDF]

open access: yesAnnales Geophysicae, 2015
By performing three-dimensional magnetohydrodynamic simulations including Alfvén eigenmode perturbations most unstable to the ionospheric feedback effects, we examined the auroral vortex street that often appears just before substorm onset.
Y. Hiraki
doaj   +1 more source

Coupling the solar surface and the corona: coronal rotation, Alfv\'en wave-driven polar plumes

open access: yes, 2013
The dynamical response of the solar corona to surface and sub-surface perturbations depends on the chromospheric stratification, and specifically on how efficiently these layers reflect or transmit incoming Alfv\'en waves.
Grappin, R.   +3 more
core   +1 more source

Quasi-periodic modulation of solar and stellar flaring emission by magnetohydrodynamic oscillations in a nearby loop [PDF]

open access: yes, 2006
We propose a new model for quasi-periodic modulation of solar and stellar flaring emission. Fast magnetoacoustic oscillations of a non-flaring loop can interact with a nearby flaring active region.
Arber   +23 more
core   +1 more source

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