REVOLVER: REal-space VOid Locations from suVEy Reconstruction

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Ada Coda
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REVOLVER: REal-space VOid Locations from suVEy Reconstruction

Post by Ada Coda » Fri Jul 26, 2019 8:31 pm

REVOLVER: REal-space VOid Locations from suVEy Reconstruction

Abstract: REVOLVER reconstructs real space positions from redshift-space tracer data by subtracting RSD through FFT-based reconstruction (optional) and applies void-finding algorithms to create a catalogue of voids in these tracers. The tracers are normally galaxies from a redshift survey but could also be halos or dark matter particles from a simulation box. Two void-finding routines are provided. The first is based on ZOBOV (ascl:1304.005) and uses Voronoi tessellation of the tracer field to estimate the local density, followed by a watershed void-finding step. The second is a voxel-based method, which uses a particle-mesh interpolation to estimate the tracer density, and then uses a similar watershed algorithm. Input data files can be in FITS format, or ASCII- or NPY-formatted data arrays.

Credit: Nadathur, Seshadri; Carter, Paul M.; Percival, Will J.; Winther, Hans A.; Bautista, Julian E.

Site: https://github.com/seshnadathur/Revolver
http://adsabs.harvard.edu/abs/2019PhRvD.100b3504N

Bibcode: 2019ascl.soft07023N

ID: ascl:1907.023

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