Smoothed particle magnetohydrodynamics for simulations of galaxy and cosmic structure formation

arXiv:2608.06978 · astro-ph.GA, astro-ph.CO, astro-ph.IM · Submitted 2026-08-07 · Read on arXiv

Orestis A. Karapiperis, Matthieu Schaller, Nikyta Shchutskyi, Federico A. Stasyszyn, Maarten Elion

astro-ph.GA, astro-ph.CO, astro-ph.IM

Submitted: 2026-08-07

Updated: 2026-08-10

Comments: 64 pages, 33 figures, submitted for publication in MNRAS

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Core — 53× in this paper · explained in 2 episodes
• Accuracy — 12× in this paper · explained in 1 episode
• Stellar Feedback — 8× in this paper · explained in 2 episodes
• Benchmarking — 7× in this paper · explained in 3 episodes
• Trace — 4× in this paper · explained in 2 episodes
• Benchmark — 3× in this paper · explained in 2 episodes
• Calibration — 3× in this paper · explained in 7 episodes
• Robustness — 3× in this paper · explained in 5 episodes
• Alignment — 2× in this paper · explained in 1 episode
• Ambipolar Diffusion — 2× in this paper · explained in 1 episode
• Initial Data — 2× in this paper · explained in 2 episodes
• Scaling Laws — 2× in this paper · explained in 4 episodes
• Abundance — 1× in this paper · explained in 1 episode
• Angular Momentum Transport — 1× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Diffusion Processes — 1× in this paper · explained in 2 episodes
• Equation of State (EoS) — 1× in this paper · explained in 4 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Hubble Tension — 1× in this paper · explained in 9 episodes
• Interpretability — 1× in this paper · explained in 15 episodes
• Reconstruction Error — 1× in this paper · explained in 2 episodes

Sources

• SWIFT: Maintaining weak-scalability with a dynamic range of $10^4$ in time-step size to harness extreme adaptivity
• Smoothed Particle Magnetohydrodynamics: A State of the Union
• REMIX SPH -- improving mixing in smoothed particle hydrodynamics simulations using a generalised, material-independent approach
• SWIFT: Using task-based parallelism, fully asynchronous communication, and graph partition-based domain decomposition for strong scaling on more than 100,000 cores
• The evolution of the galaxy gas-phase mass-metallicity relation from z=15 to z=0 in the COLIBRE cosmological simulations
• An Integral-based Approach for the Vector Potential in Smoothed Particle Magnetohydrodynamics
• The role of magnetic fields in the formation of protostars, disks, and outflows
• Investigating prescriptions for artificial resistivity in smoothed particle magnetohydrodynamics

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