Results 161 to 170 of about 4,916 (215)

Are Electric-field-driven Magnetohydrodynamic Simulations of the Solar Corona Sensitive to the Initial Condition?

open access: yesThe Astrophysical Journal
Magnetohydrodynamic (MHD) simulations of the solar corona are often started from a potential field initial condition, which may be far from the true state of the coronal magnetic field. To test the sensitivity of the simulations to the initial condition,
Graham Barnes   +2 more
doaj   +1 more source

Temporal Properties of Compressible Magnetohydrodynamic Turbulence

open access: yesThe Astrophysical Journal
Describing the temporal properties of compressible magnetohydrodynamic (MHD) turbulence is a fundamental problem that has important implications for particle acceleration and transport in astrophysical plasmas.
Ka Ho Yuen, Hui Li, Huirong Yan
doaj   +1 more source

Force Analysis of Venus’s Induced Magnetosphere: A Multifluid Hall–Magnetohydrodynamics Study

open access: yesThe Astrophysical Journal
Understanding which processes control atmospheric escape and the loss of water from planetary environments is crucial. The ESA’s Venus Express spacecraft has observed a significant depletion in Venus’s upper atmosphere, driven by the solar wind.
Nihan Chen   +10 more
doaj   +1 more source

Numerical Simulation of Electron Magnetohydrodynamics with Landau-quantized Electrons in Magnetar Crusts

open access: yesThe Astrophysical Journal
In magnetar crusts, magnetic fields are sufficiently strong to confine electrons into a small to moderate number of quantized Landau levels. This can have a dramatic effect on the crust's thermodynamic properties, generating field-dependent de Haas–van ...
Peter B. Rau, Ira Wasserman
doaj   +1 more source

Impeding Turbulence Decay in Self-gravitating Cloud Cores

open access: yesThe Astrophysical Journal
Turbulence governs the fragmentation of molecular clouds and plays a pivotal role in star formation. The persistence of observed cloud turbulence suggests it does not decay significantly within the turnover timescale, implying a recurrent driving ...
Shibo Yuan, Hua-bai Li
doaj   +1 more source

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