{
  "abstract": "Understanding how planetary demographics depend on host star properties is essential for constraining planet formation and evolution theories. In this paper, we analyse close-in 0.5-16 d planet occurrence rates from the TESS Science Processing Operations Center (SPOC) full-frame image data for individual F-, G-, and K-type main-sequence stellar samples. Integrated over $0.5 < P < 16$ d and $2 < R_\\mathrm{p} < 20\\,R_\\oplus$, the occurrence rates are $12.1^{+3.0}_{-2.3}$, $10.2^{+1.2}_{-1.0}$, and $13.1^{+1.4}_{-1.2}$ planets per 100 stars for F-, G-, and K-type hosts, consistent with each other at $1σ$, so any spectral-type dependence is localized rather than global. For transiting hot Jupiters, we measure $0.30^{+0.04}_{-0.03}$, $0.50\\pm0.03$, and $0.67^{+0.08}_{-0.07}$ per cent, with the rate peaking at K type; the latter being the first such measurement for K-type hosts. Modelling the Neptunian desert directly in occurrence-rate space, we find that the desert extends to longer orbital periods around hotter stars. Integrating over the desert interior gives $0.069^{+0.045}_{-0.011}$, $0.093^{+0.046}_{-0.022}$, and $0.150^{+0.033}_{-0.026}$ planets per 100 stars, implying about one close-in planet in a hundred lies inside the desert, and the desert is roughly twice as populated around K- as around F-type hosts. A rigorous Bayesian model comparison for the $6$-$8\\,R_\\oplus$ strip indicates that a distinct Neptunian ridge is not required to explain the measurements.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.31784",
  "author_total": 9,
  "authors": [
    {
      "name": "Kaiming Cui"
    },
    {
      "name": "David J. Armstrong"
    },
    {
      "name": "Andreas Hadjigeorghiou"
    },
    {
      "name": "Marina Lafarga"
    },
    {
      "name": "Ares Osborn"
    },
    {
      "name": "George W. King"
    },
    {
      "name": "Tim Hallatt"
    },
    {
      "name": "Vedad Kunovac"
    },
    {
      "name": "Lauren Doyle"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/c0nyk3kxtxrzq.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.31784",
  "fulltext_url": null,
  "id": "c0nyk3kxtxrzq",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.31784",
  "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.EP"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.31784",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/c0nyk3kxtxrzq.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:35:15Z",
      "native_id": "2610.31784",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.31784"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.EP",
      "subfield": "planetary"
    }
  ],
  "title": "Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars II. Spectral-Type Dependence and the Neptunian Landscape",
  "title_text": "Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars II. Spectral-Type Dependence and the Neptunian Landscape",
  "type": "preprint",
  "updated_at": "2026-10-30T12:35:15Z",
  "url": "https://research.draconitic.com/paper/c0nyk3kxtxrzq",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag2018",
      "pid": "2y8k336grga41",
      "relation": "published-as",
      "title": "Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars – II. Spectral-Type Dependence and the Neptunian Landscape",
      "venue": "Monthly Notices of the Royal Astronomical Society"
    }
  ]
}