Catalogues of voids as antihalos in the local Universe

Abstract

A recently-proposed algorithm identifies voids in simulations as the regions associated with halos when the initial overdensity field is negated. We apply this method to the real Universe by running a suite of constrained simulations of the 2M++ volume with initial conditions inferred by the BORG algorithm, along with the corresponding inverted set. Our 101 inverted and uninverted simulations, spanning the BORG posterior, each identify ~150,000 "voids as antihalos" with mass exceeding $4.38\times 10^{11}{\mathrm{M}}_{\odot }$ (100 particles) at $z=0$ in a full-sky sphere of radius 155 Mpc/h around the Milky Way. We calculate the size function, volume filling fraction, ellipticity, central density, specific angular momentum, clustering and stacked density profile of the voids, and cross-correlate them with those produced by VIDE on the same simulations. We make our antihalo and VIDE catalogues publicly available.

5 pages, 5 figures; minor revision, matches MNRASL accepted version

References in corpus (7)

• ZOBOV: a parameter-free void-finding algorithm
• Corrfunc --- A Suite of Blazing Fast Correlation Functions on the CPU
• Self-similarity and universality of void density profiles in simulation and SDSS data
• Dark matter voids in the SDSS galaxy survey
• How to Build a Catalogue of Linearly-Evolving Cosmic Voids
• Constraints on galileons from the positions of supermassive black holes
• Identification of Cosmic Voids as Massive Cluster Counterparts

Cited by in corpus (9)

• Bayesian Inference of Initial Conditions from Non-Linear Cosmic Structures using Field-Level Emulators
• Constraints on dark matter annihilation and decay from the large-scale structure of the nearby universe
• Towards Accurate Field-Level Inference of Massive Cosmic Structures
• On the Merger Rate of Primordial Black Holes in Cosmic Voids
• The effect of local universe constraints on halo abundance and clustering
• Evaluating the variance of individual halo properties in constrained cosmological simulations
• Cluster-counterpart Voids: Void Identification from Galaxy Density Field
• The galaxy-environment connection revealed by constrained simulations
• An Anti-halo Void Catalogue of the Local Super-Volume