Results 61 to 70 of about 9,065 (177)
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. +7 more
core +1 more source
On resistive dissipation of Alfvén waves in an isothermal atmosphere
International 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
Statistical Study of Short Large‐Amplitude Magnetic Structures at Mars Observed by MAVEN
Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.Abstract We present a statistical study of Short Large‐Amplitude Magnetic Structures (SLAMS) in the Martian foreshock using data from the Mars Atmosphere and Volatile Evolution (MAVEN) mission between 01 January 2015 and 31 December 2019. We have identified 21,008 SLAMS during this time interval and statistical results are presented on the SLAMS ...
Tsz Kiu Wong Chan +2 more
wiley +1 more source
Magnetospheric signatures of ionospheric density cavities observed by cluster [PDF]
, 2015 AJBR ackowledges support from STFC under consolidated grant ST/K000993/1.We present Cluster measurements of large amplitude electric fields corre- lated with intense downward field-aligned currents, observed during a nightside crossing of the auroral ...
Aikio +20 more
core +4 more sources
The transformation of magnetoacoustic waves into Alfvén waves inside the magnetosphere [PDF]
Annales Geophysicae, 1994 A mechanism for the transformation of a magnetoacoustic wave into an Alfvén wave is proposed. During the compression of the magnetosphere by the solar wind the inner edge of the plasma sheet and the contours of B=const move in different ways.
A. E. Kozlovsky +2 more
doaj +1 more source
Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.Abstract We present a novel data analysis technique based on physics‐informed neural networks (PINNs) to reconstruct two‐dimensional (2D) magnetohydrodynamic (MHD) and Hall MHD equilibria in a space plasma from in situ spacecraft measurements. Our method incorporates the steady‐state MHD or Hall MHD equations—a set of partial differential equations ...
Hiroshi Hasegawa +3 more
wiley +1 more source
Magnetohydrodynamic Slow Mode with Drifting He$^{++}$: Implications for Coronal Seismology and the Solar Wind [PDF]
, 2014 The MHD slow mode wave has application to coronal seismology, MHD turbulence, and the solar wind where it can be produced by parametric instabilities. We consider analytically how a drifting ion species (e.g.
Chandran, Benjamin D. G. +2 more
core +2 more sources
Force-free Wave Interaction in Magnetar Magnetospheres: Computational Modeling in Axisymmetry
The Astrophysical JournalCrustal quakes of highly magnetized neutron stars can disrupt their magnetospheres, triggering energetic phenomena like X-ray and fast radio bursts. Understanding plasma wave dynamics in these extreme environments is vital for predicting energy transport
Jens F. Mahlmann +2 more
doaj +1 more source
The mechanism of mid-latitude Pi2 waves in the upper ionosphere as revealed by combined Doppler and magnetometer observations [PDF]
Annales Geophysicae, 2013 The interpretation of simultaneous ionospheric Doppler sounding and ground magnetometer observations of low-latitude Pi2 waves is revised. We compare the theoretical estimates of the ionospheric Doppler velocity for the same amplitude of the ground ...
V. A. Pilipenko +4 more
doaj +1 more source
Global Energy Circulation During a Solar Wind Density Pulse
Space Weather, Volume 24, Issue 4, April 2026.Abstract We study the propagation and impacts of a strong density pulse through the magnetosphere during 11:40–12:00 UT near the peak of a geomagnetic storm on 3 February 2022. Using the Space Weather Modeling Framework Geospace global simulation, we show how the energy transport in the magnetosphere is enhanced promptly after the pulse arrival at the ...
Tuija Pulkkinen +5 more
wiley +1 more source