{
  "annotation_id": "99bfb55d-b347-4e5f-8739-7b6bfe189180",
  "date_created": "2026-02-17T05:53:20.451000Z",
  "date_modified": "2026-02-17T05:53:20.451000Z",
  "file_hash": "186bb6e6e6cd57ccfea3bfd4d9e3488d8d4f6a2f22dc5daa280b4dc813bafb52",
  "private": false,
  "record": {
    "abstract": "Understanding the demographics of close-in planets is crucial for insights into exoplanet formation and evolution. We present a detailed analysis of occurrence rates for close-in (0.5-16 day) planets with radii between 2 and 20$\\,R_{\\oplus}$ around FGK main-sequence stars. Our study uses a comprehensive sample from four years of TESS Science Processing Operations Center full-frame image data cross-matched with Gaia, analysed through our rigorous detection, vetting, and validation pipeline. Using high-confidence planet candidates, we apply a hierarchical Bayesian model to determine occurrence rates in the two-dimensional orbital period-radius plane. Our results are presented using 10-by-10 bins across the period-radius parameter space, offering unprecedented resolution and statistical precision. We find an overall occurrence rate of $9.4^{+0.7}_{-0.6}\\%$. When using identical binning, our occurrence rate posteriors distributions align with Kepler\u0027s but have a magnitude smaller uncertainties on average. For hot Jupiters, we estimate the overall occurrence rate of $0.39^{+0.03}_{-0.02}\\%$. This value is consistent with the previous Kepler FGK-type result within $1\\sigma$. We find an overall occurrence rate of Neptunian desert planets of $0.08\\pm0.01\\%$, to our knowledge the first such determination. Additionally, in a volume-limited Gaia subsample within 100 pc in the same parameter region, we measure an overall planet occurrence rate of $15.4^{+1.6}_{-1.5}\\%$ and a hot Jupiter occurrence rate of $0.42^{+0.16}_{-0.12}\\%$. Our results establishes an improved foundation for constraining theoretical models of exoplanet populations.",
    "arxiv_id": "2601.09492",
    "authors": [
      "Kaiming Cui",
      "David J. Armstrong",
      "Andreas Hadjigeorghiou",
      "Marina Lafarga",
      "Vedad Kunovac",
      "Lauren Doyle",
      "Luis Agust\u00edn Nieto",
      "Rodrigo F. D\u00edaz"
    ],
    "categories": [
      "astro-ph.EP"
    ],
    "doi": "10.1093/mnras/stag022",
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "title": "Demographics of Close-In TESS Exoplanets Orbiting FGK Main-sequence Stars",
    "url": "https://arxiv.org/abs/2601.09492",
    "version": "v1"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1ff0f50b-b64a-425a-8fac-9bf49dcb69aa",
    "id": "arXiv Dataset",
    "type": "Model",
    "variant": "snapshot-2026-01-17",
    "version": "0.1.0"
  },
  "user_id": 1000002
}