Results 111 to 120 of about 32,327 (219)

Superposed Epoch Analysis of Extreme Geomagnetic Disturbances at Auroral Zone Latitudes Over a Solar Cycle

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract Intense and rapidly changing electrical currents in near‐Earth space produce geomagnetic disturbances (GMDs) with large magnetic field rates of change (dB/dt) and in turn large geomagnetically induced currents (GICs) in nearby power lines and pipelines. This study builds on the work of Engebretson, Yang, et al.
Mark J. Engebretson, Giulia F. Mazza, Erik S. Steinmetz, Vyacheslav A. Pilipenko, Mark B. Moldwin, Martin G. Connors, Shin‐ichi Ohtani, Jesper W. Gjerloev   +7 more
wiley   +1 more source

Auroral Signatures of Ballooning Instability and Plasmoid Formation Processes in the Near‐Earth Magnetotail

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The nonlinear development of ballooning instability and the subsequently induced plasmoid formation in the near‐Earth magnetotail demonstrated in MHD simulations has been proposed as a potential trigger mechanism for substorm onset over the past decade, and their connections to the in situ satellite and ground all‐sky auroral optical ...
Ping Zhu, Jun Liang, Jiaxing Liu, Sui Wan, Eric Donovan   +4 more
wiley   +1 more source

Models for application of radiation boundary condition for MHD waves in collapse calculations [PDF]

The problem of reflection of magnetohydrodynamic (MHD) waves at the boundary of a numerical grid has to be resolved in order to obtain reliable results for the end state of the (isothermal) collapse of a rotating, magnetic protostellar cloud.
Black, D. C., Scott, E. H., Vanajakshi, C. T.   +2 more
core   +1 more source

MAVEN Observations of the Martian Magnetospheric Response to Simultaneous Quasi‐Radial Interplanetary Magnetic Field and Low Dynamic Pressure

Journal of Geophysical Research: Space Physics, Volume 131, Issue 4, April 2026.
Abstract The state of Mars' induced magnetosphere is highly dependent on upstream solar wind conditions. Changes in dynamic pressure alter the locations of magnetospheric boundaries such as the bow shock and induced magnetosphere boundary, while the orientation of the interplanetary magnetic field (IMF) impacts the formation of the bow shock.
K. G. Hanley, S. Xu, C. M. Fowler, C. Mazelle, D. L. Mitchell, J. P. McFadden, J. S. Halekas, L. Andersson, J. Espley, S. M. Curry   +9 more
wiley   +1 more source

Damping of Strong GHz Waves near Magnetars and the Origin of Fast Radio Bursts

The Astrophysical Journal
We investigate how a fast radio burst (FRB) emitted near a magnetar would propagate through its surrounding dipole magnetosphere at radii r = 10 ^7 –10 ^9 cm.
Andrei M. Beloborodov
doaj   +1 more source

The Uniturbulence and Alfvén Wave Solar Model (UAWSoM) in MPI-AMRVAC

Astronomy & Astrophysics
Context. The coronal heating problem and the generation of the solar wind remain fundamental challenges in solar physics. While approaches based on, e.g., the Alfvén Wave Solar Model (AWSoM) have proven highly successful in reproducing the large-scale ...
McMurdo M., Van Doorsselaere T., Magyar N., Banović L., Lim D.   +4 more
doaj   +1 more source

Game Changers in the Treatment of and Engagement With Persons Living With Mental Health and Substance Use Disorders: The Role of the Nurse

International Journal of Mental Health Nursing, Volume 35, Issue 2, April 2026.
ABSTRACT The game changers in mental health and substance use disorder treatment have been shaped by historical sea changes marked by transformative advancements that have significantly enhanced patient care. Breakthroughs in psychotherapy, psychosurgery and psychopharmacology have each contributed to reshaping clinical practices, especially the ...
Arlene Kent‐Wilkinson, Sudor Ogunwemimo, Eileen Zaba   +2 more
wiley   +1 more source

Transverse MHD Waves as Signatures of Braiding-induced Magnetic Reconnection in Coronal Loops

The Astrophysical Journal Letters
A major coronal heating theory based on magnetic reconnection relies on the existence of braided magnetic field structures in the corona. In this small-angle reconnection scenario, numerical simulations indicate that the reconnected magnetic field lines ...
A. Ramada C. Sukarmadji, Patrick Antolin
doaj   +1 more source

Wave Energy Conversion Technology Based on Liquid Metal Magnetohydrodynamic Generators and Its Research Progress

Energies
Wave energy is a highly concentrated energy resource with five times higher energy density than wind and at least ten times the power density of solar energy.
Lingzhi Zhao, Aiwu Peng
doaj   +1 more source

Formation of Fine Structures in Incompressible Hall Magnetohydrodynamic Turbulence Simulations

Plasma
Hall magnetohydrodynamic simulations are often carried out to study the subjects of instabilities and turbulence of space and nuclear fusion plasmas in which sub-ion-scale effects are important.
Hideaki Miura
doaj   +1 more source