{
  "abstract": "We present spatially resolved measurements of dust attenuation and star formation in 18 main-sequence star-forming galaxies at z$\\sim$1 from the MSA-3D survey, obtained by mapping the Balmer emission lines at $\\sim$1 kpc resolution with JWST/NIRSpec's MSA in a slit-stepping strategy. We investigate the diversity of radial attenuation profiles, and how the spatial variation affects attenuation and star formation rates (SFR) derived from single-aperture measurements. We find a notable diversity among radial attenuation profiles: some galaxies exhibit centrally peaked attenuation, but the majority exhibit flat or even positive radial profiles, with large variation at a fixed stellar mass. This diversity may reflect different evolutionary pathways shaped by various mechanisms such as disk settling, merging, and internal processes. We examine possible biases arising from single-aperture and integrated measurements and find that, while they can under- or over-estimate attenuation and SFRs for individual galaxies, the sample-averaged trends remain roughly unchanged, with the derived SFRs consistent with the star-forming main sequence, and a small scatter. From our sample, we find a median stellar-to-nebular reddening ratio f = E(B-V)$_{\\rm star}$/E(B-V)$_{\\rm gas}$ of 0.88 with an interquartile range of 0.51-0.96, suggesting relatively uniform dust distributions even in intermediate-mass galaxies (stellar masses $\\sim 10^9$-$10^{10.5}~M_{\\odot}$). Our results highlight the importance of spatially resolved attenuation measurements for accurately tracing star formation and understanding the evolving dust geometry in galaxies during a critical epoch of morphological transformation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.19298",
  "author_total": 16,
  "authors": [
    {
      "name": "Ivana Barišić"
    },
    {
      "name": "Tucker Jones"
    },
    {
      "name": "Naveen Reddy"
    },
    {
      "name": "Matthew Malkan"
    },
    {
      "name": "Ryan Sanders"
    },
    {
      "name": "Alaina Henry"
    },
    {
      "name": "Ayan Acharyya"
    },
    {
      "name": "Kevin Bundy"
    },
    {
      "name": "Juan M. Espejo Salcedo"
    },
    {
      "name": "Karl Glazebrook"
    },
    {
      "name": "Themiya Nanayakkara"
    },
    {
      "name": "Danail Obreschkow"
    },
    {
      "name": "Namrata Roy"
    },
    {
      "name": "Takafumi Tsukui"
    },
    {
      "name": "Benedetta Vulcani"
    },
    {
      "name": "Xin Wang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/0ygg37tae3jgw.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.19298",
  "fulltext_url": null,
  "id": "0ygg37tae3jgw",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.19298",
  "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|Galaxies: Formation, Evolution, Phenomena"
    ]
  ],
  "openalex": "W7213576926",
  "pdf_url": "https://arxiv.org/pdf/2609.19298",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-16",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/0ygg37tae3jgw.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:22:19Z",
      "native_id": "2609.19298",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.19298"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "MSA-3D: A Diversity of Dust Attenuation Profiles Across the Epoch of Thin Disk Emergence",
  "title_text": "MSA-3D: A Diversity of Dust Attenuation Profiles Across the Epoch of Thin Disk Emergence",
  "type": "preprint",
  "updated_at": "2026-10-30T12:22:19Z",
  "url": "https://research.draconitic.com/paper/0ygg37tae3jgw",
  "venue": "arXiv",
  "versions": []
}