{
  "abstract": "We present Hubble Space Telescope (HST) imaging of six Local Volume dwarf galaxies identified by the SEAMLESS survey - Cetus B, Hydrus A, Ursa Major C, Hydra B, Grapes, and M83-dw14 - along with Centaurus C (Cen C), discovered serendipitously in the M83-dw14 field. We report the discovery of M83-dw14 and Cen C for the first time. Our HST imaging resolves each system into individual stars, enabling measurements of tip of the red giant branch (TRGB) distances (3.6-6.5 Mpc), structural parameters, and star formation histories (SFHs). We complement these data with new HI observations from the Very Large Array for Ursa Major C, Hydra B, and M83-dw14 (also covering Cen C), and from the Green Bank Telescope for Grapes, together with existing HI limits for Cetus B and Hydrus A. With accurate TRGB distances, we place each target in its environmental context, ranging from a confirmed satellite (M83-dw14) to isolated systems (Hydrus A, Hydra B, Grapes, Cen C). Cen C ($M_V=-7.96$) is among the faintest isolated dwarfs known. It matches the size and luminosity of Leo T, the lowest mass gas-rich galaxy currently known, yet unlike Leo T it shows neither detected HI ($\\log(M_{\\rm HI}/M_{\\odot})<5.3$) nor recent star formation. Ursa Major C shows strongly asymmetric, spatially offset HI, suggesting that feedback may efficiently displace gas in such low-mass systems. Overall, our sample exhibits a broad range of SFHs and quenching states that does not track simply with present-day environment. This diversity is consistent with recent evidence that similarly varied SFHs occur even among isolated low-mass dwarfs, pointing to the important roles of inhomogeneous reionization, stochastic mass assembly, and internal feedback alongside environmental effects.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.40765",
  "author_total": 17,
  "authors": [
    {
      "name": "Burçin Mutlu-Pakdil"
    },
    {
      "name": "Michael G. Jones"
    },
    {
      "name": "David J. Sand"
    },
    {
      "name": "Denija Crnojević"
    },
    {
      "name": "Laura C. Hunter"
    },
    {
      "name": "Kristine Spekkens"
    },
    {
      "name": "Dennis Zaritsky"
    },
    {
      "name": "Paul Bennet"
    },
    {
      "name": "Jeffrey L. Carlin"
    },
    {
      "name": "Richard Donnerstein"
    },
    {
      "name": "Debasish Hazarika"
    },
    {
      "name": "Donghyeon J. Khim"
    },
    {
      "name": "Deepthi S. Prabhu"
    },
    {
      "name": "Cora Gillette"
    },
    {
      "name": "Grace Kelly"
    },
    {
      "name": "Harshitha Madabhushani"
    },
    {
      "name": "Annika Roberson"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3hqywf3tj4d7k.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.40765",
  "fulltext_url": null,
  "id": "3hqywf3tj4d7k",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.40765",
  "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.GA"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.40765",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/3hqywf3tj4d7k.ris",
  "sources": [
    {
      "first_seen": "2026-11-02T12:21:15Z",
      "native_id": "2610.40765",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.40765"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "SEAMLESS Survey: A Closer Look at Seven Local Volume Dwarf Galaxies in Diverse Environments",
  "title_text": "SEAMLESS Survey: A Closer Look at Seven Local Volume Dwarf Galaxies in Diverse Environments",
  "type": "preprint",
  "updated_at": "2026-11-04T15:20:51Z",
  "url": "https://research.draconitic.com/paper/3hqywf3tj4d7k",
  "venue": "arXiv",
  "versions": []
}