Results 121 to 130 of about 2,051 (189)

Dynamical Inference from Polarized Light Curves of Sagittarius A*

open access: yesThe Astrophysical Journal
Polarimetric light curves of Sagittarius A* (Sgr A*) sometimes exhibit loops in the Stokes Q and U plane over time, often interpreted as orbiting hotspot motion. In this work, we apply the differential geometry of planar curves to develop a new technique
Angelo Ricarte   +5 more
doaj   +1 more source

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

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