The cosmological analysis of X-ray cluster surveys V. The potential of cluster counts in the $1<z<2$ range - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Astron.Astrophys. Année : 2024

The cosmological analysis of X-ray cluster surveys V. The potential of cluster counts in the $1

Résumé

Cosmological studies have now entered Stage IV according to the Dark Energy Task Force prescription, thanks to new missions (Euclid, Rubin Observatory, SRG/eROSITA) that are expected to provide the required ultimate accuracy in the dark energy (DE) equation of state (EoS). However, none of these projects have the power to systematically unveil the galaxy cluster population at $z>1$. There therefore remains the need for an ATHENA-like mission to run independent cosmological investigations and scrutinise the consistency between the results from the $01$. Such samples will allow a detailed modelling of the evolution of cluster physics along with a standalone cosmological analysis. Our results suggest that survey B has the optimal design as it provides greater statistics. Remarkably, high-$z$ clusters, despite representing 15% or less of the full samples, allow a significant reduction of the uncertainty on the cosmological parameters: $\Delta w_a$ is reduced by a factor of 2.3 and $\Delta f_{NL}^{loc}$ by a factor of 3. Inventorying the high-$z$ X-ray cluster population can play a crucial role in ensuring overall cosmological consistency. This will be the major aim of future new-generation ATHENA-like missions.
Fichier principal
Vignette du fichier
aa47699-23.pdf (729.83 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-04356137 , version 1 (19-04-2024)

Licence

Paternité

Identifiants

Citer

Nicolas Cerardi, Marguerite Pierre, Patrick Valageas, Christian Garrel, Florian Pacaud. The cosmological analysis of X-ray cluster surveys V. The potential of cluster counts in the $1Astron.Astrophys., 2024, 682, pp.A138. ⟨10.1051/0004-6361/202347699⟩. ⟨hal-04356137⟩
10 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More