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Combination of cluster number counts and two-point correlations: Validation on Mock Dark Energy Survey

To, C.
•
Krause, E.
•
Rozo, E.
altro
Kokron, N.
2021
  • journal article

Periodico
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Abstract
We present a method of combining cluster abundances and large-scale two-point correlations, namely galaxy clustering, galaxy--cluster cross-correlations, cluster auto-correlations, and cluster lensing. This data vector yields comparable cosmological constraints to traditional analyses that rely on small-scale cluster lensing for mass calibration. We use cosmological survey simulations designed to resemble the Dark Energy Survey Year One (DES-Y1) data to validate the analytical covariance matrix and the parameter inferences. The posterior distribution from the analysis of simulations is statistically consistent with the absence of systematic biases detectable at the precision of the DES Y1 experiment. We compare the $chi^2$ values in simulations to their expectation and find no significant difference. The robustness of our results against a variety of systematic effects is verified using a simulated likelihood analysis of a Dark Energy Survey Year 1-like data vectors. This work presents the first-ever end-to-end validation of a cluster abundance cosmological analysis on galaxy catalog-level simulations....
DOI
10.1093/mnras/stab239
WOS
WOS:000648998800069
Archivio
http://hdl.handle.net/11368/2988338
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85104393800
Diritti
closed access
FVG url
https://arts.units.it/request-item?handle=11368/2988338
Soggetti
  • cosmological paramete...

  • cosmology: theory

  • large-scale structure...

  • Astrophysics - Cosmol...

Web of Science© citazioni
9
Data di acquisizione
Mar 28, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
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