Papers › Phase-Space Delaunay Tessellation Field Estimator
Phase-Space Delaunay Tessellation Field Estimator
Job Feldbrugge
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The reconstruction of density and velocity fields is of central importance to the interpretation of N-body simulations. We propose a phase-space extension of the Delaunay tessellation field estimator (DTFE) that tracks the dark matter fluid in phase-space. The new reconstruction scheme removes several artifacts from the conventional DTFE in multi-stream regions, while preserving the adaptive resolution in high-density regions and yielding continuous fields. The estimator also removes tessellation artifacts of a previously proposed phase-space reconstruction scheme.
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