{
  "abstract": "The precise determination of the fundamental parameters of stars is crucial for understanding stellar structure and evolution. In this regard, the asteroseismic parameters of solar-like oscillating stars obtained from space telescopes are very useful for determining the mass ($M$) and radius ($R$) of single stars using classical scaling relations. These relations still need to be improved. In this study, we develop alternative scaling relations based on reference frequencies ($ν_{\\rm min}$) due to helium ionization zone glitches, specifically for subgiant (SG) stars. We compile main-sequence and SG {\\small{MESA}} models from the literature and derive new scaling relations for stellar $R$ and surface gravity ($g$) of evolved stars. The expressions for $R$ and $g$ are obtained simultaneously as functions of the large frequency separation, $ν_{\\rm min}$, and metallicity. These new relations allow $M$ and $R$ to be reliably determined only from observational parameters, without the need for detailed stellar modelling. The resulting $ν_{\\rm min}$-based relations are applied to a sample of 31 SG stars observed by the \\emph{Kepler} mission, with masses in the range 0.85-1.74 M$_\\odot$ and radii between 1.03 and 2.82 R$_\\odot$. Using simultaneous solutions, we estimate new mass and radius ranges of 0.89-1.62 M$_\\odot$ and 1.04-2.95 R$_\\odot$, respectively. The results demonstrate significant improvements in the determination of $M$ and $R$ for evolved \\emph{Kepler} target stars, highlighting the potential of the new scaling relations in asteroseismic analyses.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Monthly Notices of the Royal Astronomical Society, Volume 549, Issue 1, June 2026, stag861",
  "arxiv": "2609.03710",
  "author_total": 3,
  "authors": [
    {
      "name": "T. Çakır Alsaç"
    },
    {
      "name": "M. Yıldız"
    },
    {
      "name": "S. Örtel"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/9ppeqc3qba31s.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.03710",
  "fulltext_url": null,
  "id": "9ppeqc3qba31s",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.03710",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "astro-ph.SR"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.03710",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-03",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/9ppeqc3qba31s.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:31Z",
      "native_id": "2609.03710",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.03710"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.SR",
      "subfield": "stellar"
    }
  ],
  "title": "New scaling relations from MESA models for mass and radius of subgiant stars: application to Kepler targets",
  "title_text": "New scaling relations from MESA models for mass and radius of subgiant stars: application to Kepler targets",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:31Z",
  "url": "https://research.draconitic.com/paper/9ppeqc3qba31s",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag861",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}