{
  "abstract": "In this paper we study the clustering properties of an optically identified photometric galaxy cluster catalogue from KiDS-1000. The sample was identified by the AMICO algorithm and consists of 9049 clusters with $S/N\\geq3.5$, in the redshift range $0.1\\leq z<0.8$, spread over an effective area of 838.78 deg$^2$. Clusters are selected according to their observed intrinsic richness, with thresholds of $λ^*{obs}\\geq 20,25,30$ within $0.10\\leq z<0.30$, $0.30\\leq z<0.45$ and $0.45\\leq z<0.80$, respectively. We measure the multipoles of the two-point correlation function over different ranges of scales from 5 $h^{-1}$ Mpc to 150 $h^{-1}$ Mpc. We model the clustering signal in the context of the $Λ$CDM cosmology, accounting for the main observational effects, such RSDs and photo-$z$ uncertainties. The effective bias of the cluster sample is estimated via a mass-richness scaling relation. For the MCMC analysis, we adopt Gaussian priors on the parameters of the mass-richness scaling relation, and broad, uniform priors to derive cosmological constraints on the cold matter density parameter, the power spectrum amplitude and the structure growth parameter, $S_8\\equivσ_8 \\sqrt{Ω{m}/0.3}$. Specifically, we find $Ω_{m}=0.24^{+0.02}{-0.02}$ and $σ_8=0.86^{+0.13}{-0.10}$ representing an improvement in precision over both the 2D and 3D AMICO clustering analyses performed on the previous KiDS data release. Moreover, we obtain $S_8=0.77^{+0.10}_{-0.08}$ in $1σ$ agreement with the AMICO KiDS-1000 number counts constraints estimated from the same catalogue, as well as with some results from external early- and late-Universe data sets. Our work strengthens the potential of cluster clustering as a complementary and competitive probe, to be included and further developed with the final KiDS-Legacy data release, and in other future Stage-IV photometric redshift surveys.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.31767",
  "author_total": 14,
  "authors": [
    {
      "name": "Massimiliano Romanello"
    },
    {
      "name": "Giorgio Francesco Lesci"
    },
    {
      "name": "Federico Marulli"
    },
    {
      "name": "Lauro Moscardini"
    },
    {
      "name": "Carlo Giocoli"
    },
    {
      "name": "Matteo Maturi"
    },
    {
      "name": "Mario Radovich"
    },
    {
      "name": "Sandro Bardelli"
    },
    {
      "name": "Gianluca Castignani"
    },
    {
      "name": "Hendrik Hildebrandt"
    },
    {
      "name": "Lorenzo Ingoglia"
    },
    {
      "name": "Shahab Joudaki"
    },
    {
      "name": "Emanuella Puddu"
    },
    {
      "name": "Mauro Sereno"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/36kvf6cnnvabc.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.31767",
  "fulltext_url": null,
  "id": "36kvf6cnnvabc",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.31767",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "http://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.CO"
    ],
    [
      "arxiv",
      "astro-ph.GA"
    ],
    [
      "openalex",
      "3103|Cosmology and Gravitation Theories"
    ]
  ],
  "openalex": "W7223674830",
  "pdf_url": "https://arxiv.org/pdf/2610.31767",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/36kvf6cnnvabc.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:15Z",
      "native_id": "2610.31767",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.31767"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.CO",
      "subfield": "cosmology"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "AMICO galaxy clusters in KiDS-1000: Cosmological constraints from the two-point correlation function",
  "title_text": "AMICO galaxy clusters in KiDS-1000: Cosmological constraints from the two-point correlation function",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:15Z",
  "url": "https://research.draconitic.com/paper/36kvf6cnnvabc",
  "venue": "arXiv",
  "versions": []
}