{
  "abstract": "Clean Hoag-like ring galaxies are often characterized by an old compact central component, a depleted gap, and a detached outer ring. We identify a boundary-supported radial-layering mechanism in a shell-deformed Kepler control model. A compact inner boundary supplies the core state, while a localized effective shell deformation, interpreted as the reduced imprint of externally supplied material settled near a finite circularization radius, needs to create only an internal maximum and a subsequent outer minimum. These act as the gap barrier and ring-supporting well. The onset of this structure is organized by a saddle-node threshold of the critical-point equation. In a 10^4-point Monte Carlo scan, shell-localized boundary-supported candidates occupy finite parameter volume under the adopted priors, and none of the localized candidates contains an ordered interior minimum--maximum--minimum subsequence. The same branch gives a scale-free gap-to-ring interval overlapping representative ratios for Hoag's Object, UGC 4599, and PGC 1000714, but not for the environmentally processed comparison object JO171.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": "Journal reference: Mon Not R Astron Soc (2026)",
  "arxiv": "2605.14725",
  "author_total": 3,
  "authors": [
    {
      "name": "Yue Xu"
    },
    {
      "name": "Chenxi Sun"
    },
    {
      "name": "Jianwei Zhang"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/8yemgezqz5shx.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2605.14725",
  "fulltext_url": null,
  "id": "8yemgezqz5shx",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2605.14725",
  "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/2605.14725",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-13",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/8yemgezqz5shx.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:29:11Z",
      "native_id": "2605.14725",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2605.14725"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.GA",
      "subfield": "galaxies"
    }
  ],
  "title": "Boundary-supported radial layering in Hoag-like ring galaxies",
  "title_text": "Boundary-supported radial layering in Hoag-like ring galaxies",
  "type": "preprint",
  "updated_at": "2026-10-30T12:29:11Z",
  "url": "https://research.draconitic.com/paper/8yemgezqz5shx",
  "venue": "arXiv",
  "versions": [
    {
      "doi": "10.1093/mnras/stag1660",
      "pid": null,
      "relation": "published-as",
      "title": null,
      "venue": null
    }
  ]
}