Lesci, G. F.G. F.LesciNanni, L.L.NanniMarulli, F.F.MarulliMoscardini, L.L.MoscardiniVeropalumbo, A.A.VeropalumboMaturi, M.M.MaturiSERENO, MauroMauroSERENORADOVICH, MARIOMARIORADOVICHBellagamba, F.F.BellagambaRoncarelli, M.M.RoncarelliBARDELLI, SandroSandroBARDELLICastignani, G.G.CastignaniCovone, G.G.CovoneGIOCOLI, CarloCarloGIOCOLIIngoglia, L.L.IngogliaPUDDU, Emanuella AnnaEmanuella AnnaPUDDU2025-02-252025-02-2520220004-6361http://hdl.handle.net/20.500.12386/36192<BR /> Aims: We analysed the clustering of a photometric sample of galaxy clusters selected from the Third Data Release of the Kilo-Degree Survey, focusing on the redshift-space two-point correlation function (2PCF). We compared our measurements to theoretical predictions of the standard Λ cold dark matter (ΛCDM) cosmological model. <BR /> Methods: We measured the 2PCF of the sample in the cluster-centric radial range r ∈ [5, 80] h<SUP>−1</SUP> Mpc, considering 4934 galaxy clusters with richness λ<SUP>*</SUP> ≥ 15 in the redshift range z ∈ [0.1, 0.6]. A Markov chain Monte Carlo analysis has been performed to constrain the cosmological parameters Ω<SUB>m</SUB>, σ<SUB>8</SUB>, and S<SUB>8</SUB> ≡ σ<SUB>8</SUB>(Ω<SUB>m</SUB>/0.3)<SUP>0.5</SUP>, assuming Gaussian priors on the mass-richness relation given by the posteriors obtained from a joint analysis of cluster counts and weak lensing. In addition, we constrained the normalisation of the mass-richness relation, α, with fixed cosmological parameters. <BR /> Results: We obtained Ω<SUB>m</SUB> = 0.28<SUP>+0.05</SUP><SUB>−0.04</SUB>, σ<SUB>8</SUB> = 0.82<SUP>+0.14</SUP><SUB>−0.12</SUB>, and S<SUB>8</SUB> = 0.80<SUP>+0.08</SUP><SUB>−0.08</SUB>. The constraint on S<SUB>8</SUB> is consistent within 1σ with the results from WMAP and Planck. Furthermore, by fixing the cosmological parameters to those provided by Planck, we obtained α = 0.12<SUP>+0.06</SUP><SUB>−0.06</SUB>, which is fully consistent with the result obtained from the joint analysis of cluster counts and weak lensing performed for this sample. <P />Some supplementary data are only available at the CDS via anonymous ftp to <A href="http://cdsarc.u-strasbg.fr/">cdsarc.u-strasbg.fr</A> (ftp://130.79.128.5) or via <A href="http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/665/A100">http://cdsarc.u-strasbg.fr/viz-bin/cat/J/A+A/665/A100</A>STAMPAenArticle10.1051/0004-6361/2022435382-s2.0-85134695774http://arxiv.org/abs/2203.07398v1https://www.aanda.org/articles/aa/full_html/2022/09/aa43538-22/aa43538-22.html2022A&A...665A.100LFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation