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 language | English |
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Pages (from-to) | L45–L49 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 511 |
Issue number | 1 |
Early online date | 28 Jan 2022 |
DOIs | |
Publication status | Published - 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