{
  "abstract": "Context: Understanding the interstellar medium (ISM) requires high-resolution, multi-component mapping to capture its complex physical structure. Nearby spiral galaxies, with their abundant and diverse ISM, provide an ideal laboratory for such a comprehensive analysis at sub-galactic scales. Aims: We investigate dust-to-gas (DGR) and dust-to-metal (DMR) ratios as a functions of gas-phase metallicity (Z), on spatial scales ranging from 0.6 to 2.3 kpc, in a sample of 10 nearby spiral galaxies, spanning more than an order of magnitude in stellar mass (9.7 \\le \\log(M_*/M_\\odot) \\leq 11.0), star formation rate (SFR, \\sim 0.3--3 \\, M_\\odot \\, \\rm yr^{-1}) and metallicity ranging from 8.3 \\lesssim 12 + \\log( O/H) \\lesssim 8.8. We explore how the DGR-Z and DMR-Z relations are shaped by the assumptions behind the CO-to-H_2 conversion factor (α_{CO}). Methods: We homogeneously combine maps of dust, atomic gas, molecular gas, and metallicity. Motivated by the diversity in L_{CO(1-0)}/SFR ratios and metallicity across our sample, we introduce a hybrid α_{CO} prescription to distinguish between CO-bright and CO-dark regimes. The derived DGR-Z and DMR-Z relations are compared with other global and resolved observational results, and with the predictions of dust and chemical evolution models. Results: Both DGR-Z and DMR-Z relations are dependent on the adopted α_{CO} prescription, and no single α_{CO} can reproduce the properties of the entire sample, motivating the use of a hybrid approach. The DGR increases with metallicity, spanning \\sim 1 dex across the sampled range; while the DMR remains approximately constant at \\log(\\mathrm{DMR}) = -0.53 \\pm 0.13, implying that \\sim 30 \\% of metals are locked into dust grains. This flat behavior indicates an evolved dust phase where efficient ISM grain growth drives a saturation regime balancing dust formation and destruction.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.04320",
  "author_total": 20,
  "authors": [
    {
      "name": "Vidhi Tailor"
    },
    {
      "name": "Viviana Casasola"
    },
    {
      "name": "Francesco Calura"
    },
    {
      "name": "Francesca Pozzi"
    },
    {
      "name": "Jacopo Fritz"
    },
    {
      "name": "Maritza Lara-López"
    },
    {
      "name": "Marco Palla"
    },
    {
      "name": "Simone Bianchi"
    },
    {
      "name": "Santiago Álvarez-Córdoba"
    },
    {
      "name": "Matteo Bonato"
    },
    {
      "name": "María Emilia De Rossi"
    },
    {
      "name": "Sami Dib"
    },
    {
      "name": "Luis E. Garduño"
    },
    {
      "name": "Andrea Giannetti"
    },
    {
      "name": "Omar López Cruz"
    },
    {
      "name": "Marina M. Puebla"
    },
    {
      "name": "Evangelos D. Paspaliaris"
    },
    {
      "name": "Leonid S. Pilyugin"
    },
    {
      "name": "Guillermo Valé"
    },
    {
      "name": "Mabel Valerdi"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/719r0nge1747c.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.04320",
  "fulltext_url": null,
  "id": "719r0nge1747c",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.04320",
  "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": null,
  "pdf_url": "https://arxiv.org/pdf/2609.04320",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-21",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/719r0nge1747c.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:23:19Z",
      "native_id": "2609.04320",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.04320"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Resolved Dust-Gas-Metallicity relations in nearby spiral galaxies",
  "title_text": "Resolved Dust-Gas-Metallicity relations in nearby spiral galaxies",
  "type": "preprint",
  "updated_at": "2026-10-30T12:23:19Z",
  "url": "https://research.draconitic.com/paper/719r0nge1747c",
  "venue": "arXiv",
  "versions": []
}