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Self-gravitational Magnetohydrodynamics with Adaptive Mesh Refinement for Protostellar Collapse

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arxiv astro-ph/0609105 v3 pith:NMXBJCLD submitted 2006-09-05 astro-ph

classification astro-ph
keywords multigridgridmethodadaptiveadoptedgridsmagnetohydrodynamicsmesh
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A new numerical code, called SFUMATO, for solving self-gravitational magnetohydrodynamics (MHD) problems using adaptive mesh refinement (AMR) is presented. A block-structured grid is adopted as the grid of the AMR hierarchy. The total variation diminishing (TVD) cell-centered scheme is adopted as the MHD solver, with hyperbolic cleaning of divergence error of the magnetic field also implemented. The self-gravity is solved by a multigrid method composed of (1) full multigrid (FMG)-cycle on the AMR hierarchical grids, (2) V-cycle on these grids, and (3) FMG-cycle on the base grid. The multigrid method exhibits spatial second-order accuracy, fast convergence, and scalability. The numerical fluxes are conserved by using a refluxing procedure in both the MHD solver and the multigrid method. The several tests are performed indicating that the solutions are consistent with previously published results.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Smoothed particle magnetohydrodynamics for simulations of galaxy and cosmic structure formation

    astro-ph.GA 2026-08 conditional novelty 7.0 of 10

    A new conservative SPMHD scheme in SWIFT passes standard tests and achieves the first coupling of the EAGLE galaxy formation model to magnetohydrodynamics.

  2. Accretion across scales: streamers, surface-layer transport, and rapid replenishment in young protoplanetary discs

    astro-ph.EP 2026-08 conditional novelty 6.0 of 10

    Cloud-fed ideal-MHD zoom-in simulations of nine young stars show discs are replenished on ~10,000-year timescales via surface-layer accretion and can be truncated by massive streamers.

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