{
  "abstract": "We present ultra-precise fundamental parameters for the detached eclipsing binary UX Men based on 31 TESS sectors ($\\sim$882 d) and radial velocities from HARPS, FEROS, CORALIE, and UCLES. The light curves were detrended for spot-induced variability and modelled independently with JKTEBOP and ALLESFITTER, while radial velocities were extracted via TODCOR and fitted with a Keplerian orbit. Spectral disentangling yielded individual component spectra analysed with iSpec to determine $T_{\\rm eff}$ and $\\mathrm{[M/H]}$. Multi-band photometry was used to determine the fluxes, flux ratios and ultimately to measure photometric $T_{\\rm eff}$. We obtain the masses $M_{\\rm A}$ = $1.2300 \\pm{0.0012}$ M$_{\\odot}$, $M_{\\rm B}$ = $1.1946\\pm{0.0012}$ M$_{\\odot}$ and radii $R_{\\rm A}$ = $1.3605\\pm{0.0031}$ R$_{\\odot}$, $R_{\\rm B}$ = $1.2801\\pm{0.0069}$ R$_{\\odot}$ with sub-percent precision. Uncertainties were found to be dominated by systematic effects coming from (weak) stellar activity. $T_{\\rm eff,A}$ = $6302\\pm{77}$, $T_{\\rm eff,B}$ = $6292\\pm65$ \\& Metallicity estimates are $[M/H]_{\\rm A} = 0.02\\pm{0.13}$ dex and $[M/H]_{\\rm B}= 0.07\\pm{0.10}$ dex. Isochrone fitting yields a consistent age of $τ$ = $2.75\\pm{0.13}$ Gyr. The system exhibits a $\\sim$ 673-day periodicity in eclipse-timing variations, likely due to stellar activity, with no evidence for a third body. Results are independent of the modelling code used, but without proper treatment of activity-induced systematics the uncertainties would be underestimated. UX Men is a high-precision benchmark binary providing stringent tests of stellar models and a robust calibration source for PLATO. Expanding the sample of well-characterised detached eclipsing binaries will strengthen the empirical foundations for stellar physics and the calibration of future photometric missions",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.10786",
  "author_total": 8,
  "authors": [
    {
      "name": "Ganesh N. Pawar"
    },
    {
      "name": "Krzysztof G. Hełminiak"
    },
    {
      "name": "Nicola J. Miller"
    },
    {
      "name": "Frédéric Marcadon"
    },
    {
      "name": "Ayush Moharana"
    },
    {
      "name": "Tilaksingh B. Pawar"
    },
    {
      "name": "Anish Kalsi"
    },
    {
      "name": "Maciej Konacki"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/5v3sm5va07n6q.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.10786",
  "fulltext_url": null,
  "id": "5v3sm5va07n6q",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.10786",
  "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"
    ],
    [
      "arxiv",
      "astro-ph.IM"
    ],
    [
      "arxiv",
      "astro-ph.SR"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.10786",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-09",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/5v3sm5va07n6q.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:20:26Z",
      "native_id": "2609.10786",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.10786"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.IM",
      "subfield": "instrumentation-methods"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.EP",
      "subfield": "planetary"
    },
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "UX Men: Detached Eclipsing Binary as a Benchmark Candidate",
  "title_text": "UX Men: Detached Eclipsing Binary as a Benchmark Candidate",
  "type": "preprint",
  "updated_at": "2026-10-30T12:20:26Z",
  "url": "https://research.draconitic.com/paper/5v3sm5va07n6q",
  "venue": "arXiv",
  "versions": []
}