Static Multiresolution Grids with Inline Hierarchy Information for Cosmic Ray Propagation

Abstract

For numerical simulations of cosmic-ray propagation fast access to static magnetic field data is required. We present a data structure for multiresolution vector grids which is optimized for fast access, low overhead and shared memory use. The hierarchy information is encoded into the grid itself, reducing the memory overhead. Benchmarks show that in certain scenarios the differences in deflections introduced by sampling the magnetic field model can be significantly reduced when using the multiresolution approach.

9 pages, 6 figures

References in corpus (3)

• A New Model of the Galactic Magnetic Field
• CRPropa 3 - a Public Astrophysical Simulation Framework for Propagating Extraterrestrial Ultra-High Energy Particles
• CRT: A numerical tool for propagating ultra-high energy cosmic rays through Galactic magnetic field models

Cited by in corpus (3)

• Ultra-High-Energy Cosmic Rays from Radio Galaxies
• Interpolation of turbulent magnetic fields and its consequences on diffusive cosmic ray propagation
• Observable spectral and angular distributions of $\gamma$-rays from extragalactic ultrahigh energy cosmic ray accelerators: the case of extreme TeV blazars