AMICO galaxy clusters in KiDS-DR3: constraints on ΛCDM from extreme value statistics
We constrain the ΛCDM cosmological parameter σ8 by applying the extreme value statistics for galaxy cluster mass on the AMICO KiDS-DR3 catalogue. We sample the posterior distribution of the parameters by considering the likelihood of observing the largest cluster mass value in a sample of Nobs = 364...
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| Hauptverfasser: | , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
October 2023
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| In: |
Monthly notices of the Royal Astronomical Society
Year: 2023, Jahrgang: 524, Heft: 4, Pages: 5050-5059 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stad2190 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/mnras/stad2190
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| Verfasserangaben: | V. Busillo, G. Covone, M. Sereno, L. Ingoglia, M. Radovich, S. Bardelli, G. Castignani, C. Giocoli, G.F. Lesci, F. Marulli, M. Maturi, L. Moscardini, E. Puddu and M. Roncarelli |
| Zusammenfassung: | We constrain the ΛCDM cosmological parameter σ8 by applying the extreme value statistics for galaxy cluster mass on the AMICO KiDS-DR3 catalogue. We sample the posterior distribution of the parameters by considering the likelihood of observing the largest cluster mass value in a sample of Nobs = 3644 clusters with intrinsic richness λ* > 20 in the redshift range z ∈ [0.10, 0.60]. We obtain $\sigma _{8}=0.90_{-0.18}^{+0.20}$, consistent within 1σ 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 Euclid and LSST, which are expected to deliver thousands of distant and massive clusters. |
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| Beschreibung: | Veröffentlicht: 21. Juli 2023 Gesehen am 06.10.2023 |
| Beschreibung: | Online Resource |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stad2190 |