Results 51 to 60 of about 1,200 (139)

Capturing Secondary Kinetic Instabilities in Three‐Dimensional Dayside Reconnection Using an Improved Gradient‐Based Closure

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract Magnetic reconnection is a highly dynamic process that excites a wide variety of kinetic waves and instabilities. Transverse current sheet instabilities such as the lower‐hybrid drift and secondary drift‐kink instabilities in particular have been shown by kinetic simulations to modify the reconnection and introduce significant turbulence and ...
K. Bradshaw   +5 more
wiley   +1 more source

Exploring the Impact of Self-Excited Alfvén Waves on Transonic Winds: Applications in Galactic Outflows

open access: yesUniverse
The impact of cosmic rays is crucial to understand the energetic plasma outflows coming out from the Galactic centers against the strong gravitational potential well.
Bilal Ramzan   +2 more
doaj   +1 more source

Inertial Alfvén Waves With Magnetosphere‐Ionosphere Coupling and Feedback

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract We present a theory of the ionospheric feedback instability (IFI) in which the finite‐thickness h $h$ of the ionosphere is represented by a frequency‐ and scale‐dependent height‐integrated Pedersen conductance, YI≡∑inΩ,k⊥,h, ${Y}_{\mathrm{I}}\equiv {\mathrm{\sum }}_{\text{in}}\left({\Omega },{k}_{\perp },h\right),$ electromagnetically coupled ...
R. Rankin, Q.‐G. Zong, W. Wang
wiley   +1 more source

Poloidal Field Line Resonances Driven by a Fast Wave

open access: yesGeophysical Research Letters
We present numerical simulations of the excitation of resonant poloidal Alfvén waves. The resulting Alfvén waves could be loosely described as “high‐m” (m is the azimuthal wave number) in as much as the azimuthal scale of the wave is much less than the ...
Andrew Wright   +7 more
doaj   +1 more source

On resistive dissipation of Alfvén waves in an isothermal atmosphere

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
In this paper we will examine the reflection and dissipation of Alfvén waves, resulting from a uniform vertical magnetic field, in an inviscid, resistive and isothermal atmosphere.
H. Y. Alkahby
doaj   +1 more source

Johan Svendsen and Two‐Dimensional Sonata Form

open access: yesMusic Analysis, Volume 45, Issue 2, Page 177-212, July 2026.
ABSTRACT This article discusses progressive formal strategies in the music of Johan Svendsen (1840–1911). Svendsen is one of Norway's foremost composers of large‐scale orchestral music, but his works have so far garnered scant attention in Anglophone scholarship.
BJØRNAR UTNE‐REITAN
wiley   +1 more source

Observing the Earth's Plasmasphere and Ionosphere From the Lunar Surface

open access: yesGeophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract We present the analysis of the first lunar‐based observational characterization of the Earth's plasmasphere and ionosphere using Global Navigation Satellite Systems signals tracked from the lunar surface by the Lunar GNSS Receiver Experiment (LuGRE). The Earth‐Moon geometry enables limb sounding of the plasmasphere at altitudes exceeding 3,000 
C. Cesaroni   +8 more
wiley   +1 more source

The Energy Content of Alfvén Waves in the Stratified Solar Atmosphere

open access: yesThe Astrophysical Journal
Alfvén waves propagating in a vertically stratified plasma, such as those traveling from the solar photosphere to the corona, are partially reflected due to the gradient in the Alfvén speed.
Roberto Soler
doaj   +1 more source

On the Correlation between Alfvén Waves and Auroral Radio Emissions in the Jovian System

open access: yesThe Astrophysical Journal
Jupiter’s powerful aurorae reflect intense energy dissipation in the magnetosphere–ionosphere system. Recent studies reveal that solar wind compression systematically enhances auroral emission, while the mechanism is not yet fully understood.
Yuening Chen, Zhonghua Yao, Shengyi Ye
doaj   +1 more source

Alfvén Wave Propagation in the Io Plasma Torus

open access: yesGeophysical Research Letters, 2019
Io, the most volcanically active body in the solar system, fuels a plasma torus around Jupiter with dissociation products of SO2 at a rate of ~1,000 kg/s.
P. C. Hinton, F. Bagenal, B. Bonfond
doaj   +1 more source

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