Probing cosmology via the clustering of critical points
Shim, Junsup ; Pichon, Christophe ; Pogosyan, Dmitri ; Appleby, Stephen ; Cadiou, Corentin LU
; Kim, Juhan
; Kraljic, Katarina
and Park, Changbom
(2024)
In Monthly Notices of the Royal Astronomical Society
528(2).
p.1604-1614
- Abstract
Exclusion zones in the cross-correlations between critical points (peak-void, peak-wall, filament-wall, and filament-void) of the density field define quasi-standard rulers that can be used to constrain dark matter and dark energy cosmological parameters. The average size of the exclusion zone is found to scale linearly with the typical distance between extrema. The latter changes as a function of the matter content of the universe in a predictable manner, but its comoving size remains essentially constant in the linear regime of structure growth on large scales, unless the incorrect cosmology is assumed in the redshift–distance relation. This can be used to constrain the dark energy parameters when considering a survey that scans a... (More)
Exclusion zones in the cross-correlations between critical points (peak-void, peak-wall, filament-wall, and filament-void) of the density field define quasi-standard rulers that can be used to constrain dark matter and dark energy cosmological parameters. The average size of the exclusion zone is found to scale linearly with the typical distance between extrema. The latter changes as a function of the matter content of the universe in a predictable manner, but its comoving size remains essentially constant in the linear regime of structure growth on large scales, unless the incorrect cosmology is assumed in the redshift–distance relation. This can be used to constrain the dark energy parameters when considering a survey that scans a range of redshifts. The precision of the parameter estimation is assessed using a set of cosmological simulations, and is found to be a 4σ detection of a change in matter content of 5 per cent, or about 3.8σ detection of 50 per cent shift in the dark energy parameter using a full sky survey up to redshift 0.5.
(Less)
- author
- Shim, Junsup
; Pichon, Christophe
; Pogosyan, Dmitri
; Appleby, Stephen
; Cadiou, Corentin
LU
; Kim, Juhan
; Kraljic, Katarina
and Park, Changbom
- organization
- publishing date
- 2024-02
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- large-scale structure of Universe, methods: analytical, methods: data analysis, methods: statistical
- in
- Monthly Notices of the Royal Astronomical Society
- volume
- 528
- issue
- 2
- pages
- 11 pages
- publisher
- Oxford University Press
- external identifiers
-
- scopus:85184143168
- ISSN
- 0035-8711
- DOI
- 10.1093/mnras/stae151
- language
- English
- LU publication?
- yes
- id
- 45987359-2128-4a07-924c-96a2db881387
- date added to LUP
- 2024-03-01 13:22:13
- date last changed
- 2024-03-01 13:23:59
@article{45987359-2128-4a07-924c-96a2db881387,
abstract = {{<p>Exclusion zones in the cross-correlations between critical points (peak-void, peak-wall, filament-wall, and filament-void) of the density field define quasi-standard rulers that can be used to constrain dark matter and dark energy cosmological parameters. The average size of the exclusion zone is found to scale linearly with the typical distance between extrema. The latter changes as a function of the matter content of the universe in a predictable manner, but its comoving size remains essentially constant in the linear regime of structure growth on large scales, unless the incorrect cosmology is assumed in the redshift–distance relation. This can be used to constrain the dark energy parameters when considering a survey that scans a range of redshifts. The precision of the parameter estimation is assessed using a set of cosmological simulations, and is found to be a 4σ detection of a change in matter content of 5 per cent, or about 3.8σ detection of 50 per cent shift in the dark energy parameter using a full sky survey up to redshift 0.5.</p>}},
author = {{Shim, Junsup and Pichon, Christophe and Pogosyan, Dmitri and Appleby, Stephen and Cadiou, Corentin and Kim, Juhan and Kraljic, Katarina and Park, Changbom}},
issn = {{0035-8711}},
keywords = {{large-scale structure of Universe; methods: analytical; methods: data analysis; methods: statistical}},
language = {{eng}},
number = {{2}},
pages = {{1604--1614}},
publisher = {{Oxford University Press}},
series = {{Monthly Notices of the Royal Astronomical Society}},
title = {{Probing cosmology via the clustering of critical points}},
url = {{http://dx.doi.org/10.1093/mnras/stae151}},
doi = {{10.1093/mnras/stae151}},
volume = {{528}},
year = {{2024}},
}