Stopyra, Stephen;
Peiris, Hiranya;
Pontzen, Andrew;
Jasche, Jens;
Lavaux, Guilhem;
(2024)
An antihalo void catalogue of the Local Super-Volume.
Monthly Notices of the Royal Astronomical Society
, 531
(2)
pp. 2213-2222.
10.1093/mnras/stae1251.
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Abstract
We construct an antihalo void catalogue of 150 voids with radii R > 10 h−1 Mpc in the Local Super-Volume (< 135 h−1 Mpc from the Milky Way), using posterior resimulation of initial conditions inferred by field-level inference with Bayesian Origin Reconstruction from Galaxies (BORG). We describe and make use of a new algorithm for creating a single, unified void catalogue by combining different samples from the posterior. The catalogue is complete out to 135 h−1 Mpc, with void abundances matching theoretical predictions. Finally, we compute stacked density profiles of those voids which are reliably identified across posterior samples, and show that these are compatible with cold dark matter expectations once environmental selection (e.g. the estimated ∼ 4 per cent underdensity of the Local Super-Volume) is accounted for.
| Type: | Article |
|---|---|
| Title: | An antihalo void catalogue of the Local Super-Volume |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stae1251 |
| Publisher version: | https://doi.org/10.1093/mnras/stae1251 |
| Language: | English |
| Additional information: | © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | Methods: data analysis, large-scale structure of Universe, cosmology: theory |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10196406 |
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