Results 11 to 20 of about 3,477 (194)

A test suite for magnetohydrodynamical simulations

open access: yesThe Astrophysical Journal, 1992
A collection is presented of MHD problems that will provide researchers who have interests in modeling MHD phenomena with a battery of tests (a 'test suite') for calibrating their numerical algorithms. Use of these tests will provide a common reference for comparison of different numerical MHD algorithms. The test suite includes both 1D and 2D problems.
James M. Stone   +3 more
openaire   +3 more sources

Stream-aligned Magnetohydrodynamics for Solar Wind Simulations [PDF]

open access: yesThe Astrophysical Journal, 2021
Abstract We present a reduced magnetohydrodynamic (MHD) mathematical model describing the dynamical behavior of highly conducting plasmas with frozen-in magnetic fields, constrained by the assumption that there exists a frame of reference, where the magnetic field vector,
Igor V. Sokolov   +2 more
openaire   +2 more sources

RADIATIVE MAGNETOHYDRODYNAMIC SIMULATION OF SUNSPOT STRUCTURE [PDF]

open access: yesThe Astrophysical Journal, 2009
Results of a three-dimensional MHD simulation of a sunspot with a photospheric size of about 20 Mm are presented. The simulation has been carried out with the MURaM code, which includes a realistic equation of state with partial ionization and radiative transfer along many ray directions.
Rempel, M., Schüssler, M., Knölker, M.
openaire   +2 more sources

Simulations of Incompressible Magnetohydrodynamic Turbulence [PDF]

open access: yesThe Astrophysical Journal, 2001
We simulate incompressible MHD turbulence using a pseudospectral code. Our major conclusions are: (1) MHD turbulence is most conveniently described in terms of counterpropagating shear Alfven and slow waves. Shear Alfven waves control the cascade dynamics. Slow waves play a passive role and adopt the spectrum set by the shear Alfven waves.
Maron, Jason, Goldreich, Peter
openaire   +2 more sources

SIMULATIONS OF ELECTRON MAGNETOHYDRODYNAMIC TURBULENCE

open access: yesThe Astrophysical Journal, 2009
We present numerical simulations of electron magnetohydrodynamic (EMHD) and electron reduced MHD (ERMHD) turbulence. Comparing scaling relations, we find that both EMHD and ERMHD turbulence show similar spectra and anisotropy. We develop new techniques to study anisotropy of EMHD turbulence.
Cho, Jungyeon, Lazarian, A.
openaire   +2 more sources

RESISTIVE MAGNETOHYDRODYNAMIC SIMULATIONS OF RELATIVISTIC MAGNETIC RECONNECTION [PDF]

open access: yesThe Astrophysical Journal, 2010
published in ...
Zenitani, Seiji   +2 more
openaire   +2 more sources

Robust Field-level Likelihood-free Inference with Galaxies

open access: yesThe Astrophysical Journal, 2023
We train graph neural networks to perform field-level likelihood-free inference using galaxy catalogs from state-of-the-art hydrodynamic simulations of the CAMELS project.
Natalí S. M. de Santi   +14 more
doaj   +1 more source

The Generation and Dissipation of Interstellar Turbulence - Results from Large Scale High Resolution Simulations [PDF]

open access: yes, 2007
We study, by means of adaptive mesh refinement hydro- and magnetohydrodynamical simulations that cover a wide range of scales (from kpc to sub-parsec), the dimension of the most dissipative structures and the injection scale of the turbulent interstellar
Cappellaro E.   +3 more
core   +2 more sources

MAGNETOHYDRODYNAMIC SIMULATIONS OF HOT JUPITER UPPER ATMOSPHERES [PDF]

open access: yesThe Astrophysical Journal, 2014
accepted at ...
Trammell, George B.   +2 more
openaire   +2 more sources

Discovery of Rotational Braking in the Magnetic Helium-Strong Star Sigma Orionis E [PDF]

open access: yes, 2010
We present new U-band photometry of the magnetic Helium-strong star Sigma Ori E, obtained over 2004-2009 using the SMARTS 0.9-m telescope at Cerro Tololo Inter-American Observatory.
Birney   +9 more
core   +4 more sources

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