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arXiv · 2308.05518

AMICO galaxy clusters in KiDS-DR3: constraints on $\Lambda$CDM from extreme value statistics

Valerio Busillo·Giovanni Covone·Mauro Sereno·Lorenzo Ingoglia·Mario Radovich·Sandro Bardelli·Gianluca Castignani·Carlo Giocoli·Giorgio Francesco Lesci·Federico Marulli·Matteo Maturi·Lauro Moscardini·Emanuela Puddu·Mauro Roncarelli
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Abstract

We constrain the $\Lambda$CDM cosmological parameter $\sigma_{8}$ by applying the extreme value statistics for galaxy cluster mass on the AMICO KiDS-DR3 catalog. We sample the posterior distribution of the parameters by considering the likelihood of observing the largest cluster mass value in a sample of $N_{\textrm{obs}} = 3644$ clusters with intrinsic richness $\lambda^{*} > 20$ in the redshift range $z\in[0.10, 0.60]$. We obtain $\sigma_{8}=0.90_{-0.18}^{+0.20}$, consistent within $1\sigma$ with the measurements obtained by the Planck collaboration and with previous results from cluster cosmology exploiting AMICO KiDS-DR3. The constraints could improve by applying this method to forthcoming missions, such as $\textit{Euclid}$ and LSST, which are expected to deliver thousands of distant and massive clusters.

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Valerio Busillo, Giovanni Covone, Mauro Sereno, Lorenzo Ingoglia, Mario Radovich, Sandro Bardelli, Gianluca Castignani, Carlo Giocoli, Giorgio Francesco Lesci, Federico Marulli, Matteo Maturi, Lauro Moscardini, Emanuela Puddu, Mauro Roncarelli. 2023-08-10. AMICO galaxy clusters in KiDS-DR3: constraints on $\Lambda$CDM from extreme value statistics. https://doi.org/10.1093/mnras%2Fstad2190

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