MHD Simulation Study on Quasi‐Steady Dawn‐Dusk Convection Electric Field in Earth's Magnetosphere
Journal of Geophysical Research: Space Physics, Volume 130, Issue 7, July 2025.Abstract We investigated the large‐scale, quasi‐steady magnetospheric electric field by using global magnetohydrodynamic (MHD) simulations. When a southward interplanetary magnetic field was imposed, a large‐scale, dawn‐dusk electric field appeared in the magnetosphere.
Yusuke Ebihara +2 more
wiley +1 more source
The Life and Times of Star-forming Cores: An Analysis of Dense Gas in the STARFORGE Simulations
The Astrophysical JournalDense gas in molecular clouds is an important signature of ongoing and future star formation. We identify and track dense cores in the starforge simulations, following the core evolution from birth through dispersal by stellar feedback for typical Milky ...
Stella S. R. Offner +2 more
doaj +1 more source
Simulated annealing of reduced magnetohydrodynamic systems
Reviews of Modern Plasma PhysicsTheory of simulated annealing (SA), a method for equilibrium and stability analyses for Hamiltonian systems, is reviewed. The SA explained in this review is based on a double bracket formulation that derives from Hamiltonian structure. In addition to general theoretical aspects, the explicit formulation as well as numerical applications are presented ...
M. Furukawa, P. J. Morrison
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The Interaction of a Supernova Remnant with Background Interstellar Turbulence
The Astrophysical Journal Supplement SeriesSupernova explosions are among the most energetic events in the Universe. After the explosion, the material ejected by the supernova expands throughout the interstellar medium (ISM), forming what is called a supernova remnant (SNR). The shocks associated
Giuseppe Prete +4 more
doaj +1 more source
The diffuse gamma-ray flux from clusters of galaxies. [PDF]
Nat Commun, 2023 Hussain S +3 more
europepmc +1 more source
Magnetohydrodynamic Simulation of Solar Supergranulation
, 2006 Three-dimensional magnetohydrodynamical large eddy simulations of solar surface convection using realistic model physics is conducted. The effects of magnetic fields on thermal structure of convective motions into radiative layers, the range of convection cell sizes and penetration depths of convection is investigated. We simulate a some portion of the
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Realistic magnetohydrodynamical simulation of solar local supergranulation [PDF]
Physica Scripta, 2010 Three-dimensional numerical simulations of solar surface magnetoconvection using realistic model physics are conducted. The thermal structure of convective motions into the upper radiative layers of the photosphere, the main scales of convective cells and the penetration depths of convection are investigated.
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Simple stochastic model for geomagnetic excursions and reversals reproduces the temporal asymmetry of the axial dipole moment. [PDF]
Proc Natl Acad Sci U S A, 2021 Molina-Cardín A, Dinis L, Osete ML.
europepmc +1 more source
Particle Acceleration and Magnetic Field Amplification by Relativistic Shocks in Inhomogeneous Media
The Astrophysical Journal LettersParticle acceleration and magnetic field amplification in relativistic shocks propagating in inhomogeneous media are investigated by three-dimensional magnetohydrodynamical (MHD) simulations and test-particle simulations.
Kanji Morikawa +2 more
doaj +1 more source
Vortex Motions in the Solar Atmosphere: Definitions, Theory, Observations, and Modelling. [PDF]
Space Sci Rev, 2023 Tziotziou K +14 more
europepmc +1 more source