{
  "abstract": "Open clusters are key laboratories for studying the formation and dynamical evolution of stellar populations. We present a comprehensive characterization of the intermediate-age open cluster NGC 6134 using Gaia DR3 astrometry and photometry. Adopting the 890-member Hierarchical Density-Based Spatial Clustering of Applications with Noise (HDBSCAN) membership catalog, we determine the cluster distance and individual member distances with the Bayesian hierarchical code Kalkayotl under a King spatial prior, derive the fundamental parameters with the automated isochrone-fitting code ASteCA, quantify mass segregation, and decompose the projected spatial distribution into structural components. We obtain a Bayesian cluster distance of $1070.8^{+21.0}_{-19.0}$ pc (mode and 68\\% credible interval), consistent with the ASteCA value ($d = 1064.4 \\pm 15.2$ pc), with member distances peaking at $1071.2 \\pm 2.5$ pc. ASteCA yields $\\mathrm{[Fe/H]} = 0.08 \\pm 0.06$, $\\log(t) = 9.14 \\pm 0.01$, and $A_\\mathrm{V} = 1.03 \\pm 0.05$ mag. The present-day mass function (PDMF) follows a broken power law with slopes $Γ_A = -2.10^{+0.10}_{-0.10}$ and $Γ_B = 1.59^{+0.14}_{-0.14}$ and break mass $M_c = 0.95^{+0.02}_{-0.02}\\ M_\\odot$, with a negative low-mass slope and a high-mass slope steeper than the canonical Salpeter value ($Γ= 1.35$), consistent with the preferential loss of the most massive stars through stellar evolution rather than with dynamical depletion. The observed mass segregation is consistent with an origin in long-term dynamical evolution. The cluster comprises a core, a diffuse halo, and a coherent plane-of-sky elongated feature that is unlikely to arise from noise based on a size-matched isotropic null test, and that lies beyond the radius at which masses are available. The observed main-sequence gap is closely linked to the cluster's binary fraction.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2606.24270",
  "author_total": 10,
  "authors": [
    {
      "name": "Agus T. P. Jatmiko"
    },
    {
      "name": "Teduh Perhati"
    },
    {
      "name": "Dhimaz G. Ramadhan"
    },
    {
      "name": "Muhammad Yusuf"
    },
    {
      "name": "Denny Mandey"
    },
    {
      "name": "Mochamad I. Arifyanto"
    },
    {
      "name": "Premana W. Premadi"
    },
    {
      "name": "Sahlan Ramadhan"
    },
    {
      "name": "Ferry Yap"
    },
    {
      "name": "Laksma Satya"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/513x1jehpbd7r.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2606.24270",
  "fulltext_url": null,
  "id": "513x1jehpbd7r",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2606.24270",
  "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.GA"
    ],
    [
      "openalex",
      "3103|Stellar, planetary, and galactic studies"
    ]
  ],
  "openalex": "W7165795383",
  "pdf_url": "https://arxiv.org/pdf/2606.24270",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-19",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/513x1jehpbd7r.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2606.24270",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2606.24270"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "A comprehensive Gaia DR3 study of the open cluster NGC 6134: Bayesian distances, present-day mass function, mass segregation, and structural decomposition",
  "title_text": "A comprehensive Gaia DR3 study of the open cluster NGC 6134: Bayesian distances, present-day mass function, mass segregation, and structural decomposition",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/513x1jehpbd7r",
  "venue": "arXiv",
  "versions": []
}