{
  "abstract": "High-redshift quasars are powerful tracers of both astrophysical processes and large-scale structure in the early Universe. Using a sample of 1242 spectroscopically confirmed quasars and 827 highly reliable photometric quasar candidates selected with a machine learning framework, all at 4.7 ≤ z < 6.3 (excluding 5.4 < z < 5.6) and with a median luminosity of M ₁₄₅₀ ∼ −25.5, we investigate the large-scale environments of quasars near the end of cosmic reionization. We measure the projected autocorrelation function of the quasar population and derive bias parameters of b = 22.1 1 − 2.19 + 2.17 and 28.5 5 − 5.75 + 5.76 for the redshift intervals 4.7 ≤ z < 5.4 and 5.6 ≤ z < 6.3, respectively. These correspond to characteristic dark matter halo masses of log ( M h / M ⊙ ) = 12.6 6 − 0.11 + 0.10 and 12.6 2 − 0.21 + 0.21 , respectively. We further estimate quasar duty cycles of 0.01 1 − 0.007 + 0.017 and 0.01 2 − 0.011 + 0.104 for the two redshift bins. These measurements are consistent with previous studies and the observed f duty – M halo relation, indicating that only a small fraction of suitable dark matter halos host optically luminous quasars at any given time. The inferred low duty cycles suggest that a substantial fraction of supermassive black hole (SMBH) growth may occur during obscured accretion phases. Our results provide new constraints on the connection between high-redshift quasars and their host dark matter halos, offering valuable insights into the coevolution of SMBHs and large-scale structure in the early Universe.",
  "abstract_shown": true,
  "affiliations": [
    "Huazhong University of Science and Technology",
    "Hubei Fundamental Research Center for Physics"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 3,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Hao 皓 Meng 蒙"
    },
    {
      "affs": [
        0
      ],
      "name": "Guangping 广平 Ye 叶"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Huanian 华年 Zhang 张",
      "orcid": "0000-0002-0123-9246"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/35zb0a7jtf8d3.bib",
  "cited_by": 0,
  "doi": "10.3847/2041-8213/aea06f",
  "fulltext_url": null,
  "id": "35zb0a7jtf8d3",
  "issns": [
    "2041-8205",
    "2041-8213"
  ],
  "landing_url": "https://iopscience.iop.org/article/10.3847/2041-8213/aea06f",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "openalex",
      "3103|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7215047649",
  "pdf_url": "https://iopscience.iop.org/article/10.3847/2041-8213/aea06f/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-01",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/35zb0a7jtf8d3.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:13Z",
      "native_id": "10.3847/2041-8213/aea06f",
      "source": "crossref",
      "url": "https://iopscience.iop.org/article/10.3847/2041-8213/aea06f"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Galaxies: Formation, Evolution, Phenomena",
      "subfield": "galaxies"
    }
  ],
  "title": "Probing Dark Matter Halos of High-redshift Quasars via Wide-field Clustering",
  "title_text": "Probing Dark Matter Halos of High-redshift Quasars via Wide-field Clustering",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:13Z",
  "url": "https://research.draconitic.com/paper/35zb0a7jtf8d3",
  "venue": "The Astrophysical Journal Letters",
  "versions": []
}