{
  "abstract": "The physical properties of circumplanetary disks offer insights into the formation of giant planets and their satellites. The circumbinary planetary-mass companion SR 12 c (1200 au from SR 12 AB) hosts an isolated dust disk directly detected with ALMA. We present JWST/MIRI imaging of SR 12 c from 5.6 to 21 $μ$m and analyze its spectral energy distribution from infrared to submillimeter wavelengths. Phenomenologically, the dust disk can be described by a two-component blackbody with large contrasts in characteristic temperatures and radii. Physically motivated models with varied geometries and heating mechanisms suggest a predominantly flat, irradiation-heated disk with a smaller contribution from viscous dissipation. The disk is inferred to be compact, with an inner radius of ~3 $R_{\\rm Jup}$. The outer radius is only loosely constrained, with a characteristic value of ~3 au. The lack of strong 10 $μ$m excess emission suggests significant grain growth and dust settling. We also find that SR 12 c is broadly consistent with the empirical star-disk scaling relations, providing context for its possible formation pathway. These results demonstrate the power of combining mid-infrared and submillimeter observations with disk modeling to better understand the physical properties of circumplanetary disks.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2610.24776",
  "author_total": 16,
  "authors": [
    {
      "name": "Ya-Lin Wu"
    },
    {
      "name": "Claire O. Finley"
    },
    {
      "name": "Brendan P. Bowler"
    },
    {
      "name": "Ning Chen"
    },
    {
      "name": "Yuhiko Aoyama"
    },
    {
      "name": "Gregory J. Herczeg"
    },
    {
      "name": "Catherine C. Espaillat"
    },
    {
      "name": "William Best"
    },
    {
      "name": "Ian Czekala"
    },
    {
      "name": "Katherine B. Follette"
    },
    {
      "name": "Adam L. Kraus"
    },
    {
      "name": "Raquel A. Martinez"
    },
    {
      "name": "Connor E. Robinson"
    },
    {
      "name": "Quang H. Tran"
    },
    {
      "name": "Kimberly Ward-Duong"
    },
    {
      "name": "Yifan Zhou"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/e4vzwx4n2ech8.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2610.24776",
  "fulltext_url": null,
  "id": "e4vzwx4n2ech8",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2610.24776",
  "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.EP"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2610.24776",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-17",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/e4vzwx4n2ech8.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:30:52Z",
      "native_id": "2610.24776",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2610.24776"
    }
  ],
  "subjects": [
    {
      "field": "astronomy",
      "origin": "arxiv:astro-ph.EP",
      "subfield": "planetary"
    }
  ],
  "title": "Mid-infrared Imaging of SR 12 c with JWST/MIRI: Grain Growth in an Evolved Circumplanetary Disk",
  "title_text": "Mid-infrared Imaging of SR 12 c with JWST/MIRI: Grain Growth in an Evolved Circumplanetary Disk",
  "type": "preprint",
  "updated_at": "2026-10-30T12:33:41Z",
  "url": "https://research.draconitic.com/paper/e4vzwx4n2ech8",
  "venue": "arXiv",
  "versions": []
}