{
  "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 < Rp < 20 R⊕, 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 ± 0.03, 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⊕ strip indicates that a distinct Neptunian ridge is not required to explain the measurements.",
  "abstract_shown": true,
  "affiliations": [
    "University of Warwick Department of Physics, , Gibbet Hill Road, Coventry CV4 7AL ,",
    "Centre for Exoplanets and Habitability, University of Warwick , Gibbet Hill Road, Coventry CV4 7AL ,",
    "MIT Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology , Cambridge, MA 02139 ,"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 9,
  "authors": [
    {
      "affs": [
        0,
        1
      ],
      "name": "Kaiming Cui",
      "orcid": "0000-0003-1535-5587"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "David J Armstrong",
      "orcid": "0000-0002-5080-4117"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Andreas Hadjigeorghiou",
      "orcid": "0000-0003-2222-8746"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Marina Lafarga",
      "orcid": "0000-0002-8815-9416"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Ares Osborn",
      "orcid": "0000-0002-5899-7750"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "George W King",
      "orcid": "0000-0002-3641-6636"
    },
    {
      "affs": [
        2
      ],
      "name": "Tim Hallatt"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Vedad Kunovac",
      "orcid": "0000-0001-9419-3736"
    },
    {
      "affs": [
        0,
        1
      ],
      "name": "Lauren Doyle",
      "orcid": "0000-0002-9365-2555"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/2y8k336grga41.bib",
  "cited_by": 0,
  "doi": "10.1093/mnras/stag2018",
  "fulltext_url": null,
  "id": "2y8k336grga41",
  "issns": [
    "0035-8711",
    "1365-2966"
  ],
  "landing_url": "https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stag2018/8979809",
  "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|Stellar, planetary, and galactic studies"
    ]
  ],
  "openalex": "W7223236488",
  "pdf_url": "https://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stag2018/72372900/stag2018.pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-22",
  "publisher": "Oxford University Press (OUP)",
  "ris": "https://research.draconitic.com/paper/2y8k336grga41.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:17Z",
      "native_id": "10.1093/mnras/stag2018",
      "source": "crossref",
      "url": "https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stag2018/8979809"
    }
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  "subjects": [
    {
      "field": "astronomy",
      "origin": "openalex:3103|Stellar, planetary, and galactic studies",
      "subfield": "stellar"
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  ],
  "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": "peer-reviewed",
  "updated_at": "2026-10-30T12:18:17Z",
  "url": "https://research.draconitic.com/paper/2y8k336grga41",
  "venue": "Monthly Notices of the Royal Astronomical Society",
  "versions": [
    {
      "doi": "10.48550/arxiv.2610.31784",
      "pid": "c0nyk3kxtxrzq",
      "relation": "preprint",
      "title": "Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars II. Spectral-Type Dependence and the Neptunian Landscape",
      "venue": "arXiv"
    }
  ]
}