Results 101 to 110 of about 3,477 (194)

Simulations of Relativistic Force‐free Magnetohydrodynamic Turbulence

The Astrophysical Journal, 2005
We present numerical studies of 3-dimensional magnetohydrodynamic (MHD) turbulence in a strongly magnetized medium in the extremely relativistic limit, in which the inertia of the charge carriers can be neglected. We have focused on strong Alfvenic turbulence in the limit. We have found the following results.
openaire   +2 more sources

Physical Constraint Preserving Higher-order Finite Volume Schemes for Divergence-free Astrophysical MHD and RMHD

The Astrophysical Journal
Higher-order finite volume schemes for magnetohydrodynamics (MHD) and relativistic magnetohydrodynamics (RMHD) are very valuable because they allow us to carry out astrophysical simulations with very high accuracy.
Dinshaw S. Balsara, Deepak Bhoriya, Chetan Singh, Harish Kumar, Roger Käppeli, Federico Gatti   +5 more
doaj   +1 more source

Particle Acceleration and Magnetic Field Amplification by Relativistic Shocks in Inhomogeneous Media

The Astrophysical Journal Letters
Particle 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, Yutaka Ohira, Takumi Ohmura   +2 more
doaj   +1 more source

Collapse and Fragmentation of Rotating Magnetized Clouds. I. Magnetic Flux - Spin Relation

, 2005
We discuss evolution of the magnetic flux density and angular velocity in a molecular cloud core, on the basis of three-dimensional numerical simulations, in which a rotating magnetized cloud fragments and collapses to form a very dense optically thick ...
Aikawa, Basu, Basu, Basu, Bate, Bonnell, Bonnell, Boss, Crutcher, Crutcher, Dedner, Dorfi, Dorfi, Durisen, Fukuda, Hanawa, Hayashi, Hirsh, Hosking, Kohji Tomisaka, Larson, Li, Machida, Machida, Masahiro N. Machida, Masunaga, Matsumoto, Matsumoto, Matsumoto, Matsumoto, Matsumoto, Matsumoto, Nakamura, Nakamura, Nakamura, Nakamura, Nakamura, Nakano, Nakano, Nakano, Norman, Ohashi, Ohashi, Penston, Phillips, Saigo, Saito, Scott, Simon, Stodółkiewicz, Tomisaka, Tomisaka, Tomisaka, Tomisaka, Tomoaki Matsumoto, Tomoyuki Hanawa, Truelove, Williams   +57 more
core   +1 more source

Relativistic magnetohydrodynamics simulations of extragalactic jets [PDF]

, 2004
We have developed a simulation code which solves the equations of relativistic magnetohydrodynamics in conservation form. It was used to conduct a parameter study of two-dimensional, axisymmetric models for radio jets. The simulations show that a toroidal magnetic field affects the dynamics and morphology of jets in numerous ways, while a poloidal ...
openaire   +1 more source

The Evolution of Substructure during Star Cluster Assembly

The Astrophysical Journal
Star cluster formation and assembly occur inside filamentary and turbulent molecular clouds, which imprint both spatial and kinematic substructure on the young cluster.
Edwin Laverde-Villarreal, Alison Sills, Claude Cournoyer-Cloutier, Veronica Arias Callejas   +3 more
doaj   +1 more source

The diffuse gamma-ray flux from clusters of galaxies. [PDF]

Nat Commun, 2023
Hussain S, Alves Batista R, de Gouveia Dal Pino EM, Dolag K.   +3 more
europepmc   +1 more source

Simulations of Nonthermal Electron Transport in Multidimensional Flows: Synthetic Observations of Radio Galaxies

, 1999
We have applied an effective numerical scheme for cosmic-ray transport to 3D MHD simulations of jet flow in radio galaxies (see the companion paper by Jones et al. 1999).
Charles Park, Clarke, Clarke, Dongsu Ryu, Feigelson, Harris, Hughes, I.L. Tregillis, Jones, Laing, Smith, T.W. Jones   +11 more
core   +1 more source

Smoothed Particle Magnetohydrodynamics (some shocking results...)

, 2003
There have been some issues in the past in attempts to simulate magnetic fields using the Smoothed Particle Hydrodynamics (SPH) method. SPH is well suited to star formation problems because of its Lagrangian nature.
Monaghan, J. J., Price, D. J.
core   +1 more source

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