Catalogues of voids as antihaloes in the local Universe

Harry Desmond*, Maxwell Hutt, Julien Devriendt, Adrianne Slyz

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Downloads (Pure)

Abstract

A recently proposed algorithm identifies voids in simulations as the regions associated with haloes 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 antihaloes’ with mass exceeding 4.38 × 1011 M⊙ (100 particles) at z = 0 in a full-sky sphere of radius 155 Mpc h−1 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.
Original languageEnglish
Pages (from-to)L45–L49
JournalMonthly Notices of the Royal Astronomical Society
Volume511
Issue number1
Early online date28 Jan 2022
DOIs
Publication statusPublished - 1 Mar 2022

Keywords

  • catalogues
  • software: simulations
  • galaxies: haloes
  • dark matter
  • large-scale structure of Universe
  • UKRI
  • STFC
  • ST/K000373/1
  • ST/P002293/1
  • ST/R002371/1
  • ST/S002502/1
  • ST/K0003259/1
  • ST/R000832/1

Fingerprint

Dive into the research topics of 'Catalogues of voids as antihaloes in the local Universe'. Together they form a unique fingerprint.

Cite this