{
  "abstract": "In this study, we present the full (97.3% complete) 0.8–12.5 μ m spectral energy distribution (SED) of an L/T transition object, CWISE J210640.16+250729.0 (CW 2106), using the James Webb Space Telescope (JWST). We provide a full characterization of the host star’s elemental abundances and age. We empirically derive the bolometric luminosity (≈ −4.825 dex) of CW 2106, and obtain estimates of its mass ( M ≈ 50–62 M Jup ), radius ( R ≈ 0.83–0.87 R Jup ), effective temperature ( T eff ≈ 1213 K), and surface gravity ( log g ≈ 5.28 dex). We find the near-infrared (near-IR) spectrum (0.8–2.5 μ m) is best reproduced with cloudy atmospheric models while the mid-infrared (mid-IR) spectrum (5–12.5 μ m) is best reproduced with cloudless models. This suggests a cloud layer restricted to only the deepest observable parts of the atmosphere and is qualified by the lack of a 9 μ m silicate feature. Making use of the Mg/Si ratio of the primary, alongside thermochemical models, we predict the clouds in CW 2106 to be composed primarily of enstatite (MgSiO ₃ ), removing ∼23% of the bulk oxygen out of the atmosphere. Future retrieval studies will be able to help investigate the existence and full impact of these cloud species.",
  "abstract_shown": true,
  "affiliations": [
    "Department of Astrophysics",
    "Department of Physics",
    "Department of Physics and Astronomy",
    "Backyard Worlds: Planet 9",
    "Department of Physics & Astronomy",
    "Planétarium Rio Tinto Alcan",
    "Département de Physique",
    "Department of Geosciences",
    "Department of Earth and Planetary Sciences",
    "Lunar and Planetary Laboratory",
    "Department of Astronomy & Astrophysics",
    "Department of Chemistry and Planetary Sciences",
    "Center for Exoplanetary Systems",
    "School of Physics"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 19,
  "authors": [
    {
      "affs": [
        0,
        1,
        2,
        3
      ],
      "name": "Austin Rothermich",
      "orcid": "0000-0003-4083-9962"
    },
    {
      "affs": [
        0,
        3
      ],
      "name": "Jacqueline K. Faherty",
      "orcid": "0000-0001-6251-0573"
    },
    {
      "affs": [
        1
      ],
      "name": "Ben Burningham",
      "orcid": "0000-0003-4600-5627"
    },
    {
      "affs": [
        4
      ],
      "name": "Catherine Manea",
      "orcid": "0000-0002-0900-6076"
    },
    {
      "affs": [
        0
      ],
      "name": "Emily Calamari",
      "orcid": "0000-0002-2682-0790"
    },
    {
      "affs": [
        0
      ],
      "name": "Genaro Suárez",
      "orcid": "0000-0002-2011-4924"
    },
    {
      "affs": [
        4
      ],
      "name": "Daniella C. Bardalez Gagliuffi",
      "orcid": "0000-0001-8170-7072"
    },
    {
      "affs": [
        4
      ],
      "name": "John M. Brewer",
      "orcid": "0000-0002-9873-1471"
    },
    {
      "affs": [
        0,
        2,
        1
      ],
      "name": "Kelle L. Cruz",
      "orcid": "0000-0002-1821-0650"
    },
    {
      "affs": [
        1
      ],
      "name": "Josefine Gaarn"
    },
    {
      "affs": [
        5,
        6
      ],
      "name": "Jonathan Gagné",
      "orcid": "0000-0002-2592-9612"
    },
    {
      "affs": [
        4
      ],
      "name": "Eileen C. Gonzales",
      "orcid": "0000-0003-4636-6676"
    },
    {
      "affs": [
        0,
        7,
        8
      ],
      "name": "Marina E. Gemma",
      "orcid": "0000-0002-8871-773X"
    },
    {
      "affs": [
        1
      ],
      "name": "Viktória Kecskeméthy",
      "orcid": "0000-0002-9511-0901"
    },
    {
      "affs": [
        9
      ],
      "name": "Mark S. Marley",
      "orcid": "0000-0002-5251-2943"
    },
    {
      "affs": [
        10
      ],
      "name": "Caprice L. Phillips",
      "orcid": "0000-0001-5610-5328"
    },
    {
      "affs": [
        11,
        12
      ],
      "name": "Channon Visscher",
      "orcid": "0000-0001-6627-6067"
    },
    {
      "affs": [
        13
      ],
      "name": "Johanna M. Vos",
      "orcid": "0000-0003-0489-1528"
    },
    {
      "affs": [
        0
      ],
      "name": "Niall Whiteford",
      "orcid": "0000-0001-8818-1544"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/bjbg208en4vka.bib",
  "cited_by": 0,
  "doi": "10.3847/1538-4357/aea4b2",
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  "id": "bjbg208en4vka",
  "issns": [
    "1538-4357",
    "0004-637X"
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  "landing_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea4b2",
  "language": null,
  "licence": "CC-BY-4.0",
  "licence_label": "CC BY 4.0",
  "licence_source": "article",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "feed-journal",
      "astronomy/general"
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  "pdf_url": "https://iopscience.iop.org/article/10.3847/1538-4357/aea4b2/pdf",
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-29",
  "publisher": "American Astronomical Society",
  "ris": "https://research.draconitic.com/paper/bjbg208en4vka.ris",
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      "first_seen": "2026-10-30T12:17:17Z",
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  "subjects": [
    {
      "field": "astronomy",
      "origin": "journal-openalex:3103|Stellar, planetary, and galactic studies",
      "subfield": "stellar"
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  ],
  "title": "Sinking Silicates. I. Characterizing the Benchmark System Containing the T0 Brown Dwarf CWISEJ210640.16+250729.0 using JWST",
  "title_text": "Sinking Silicates. I. Characterizing the Benchmark System Containing the T0 Brown Dwarf CWISEJ210640.16+250729.0 using JWST",
  "type": "peer-reviewed",
  "updated_at": "2026-10-31T00:20:43Z",
  "url": "https://research.draconitic.com/paper/bjbg208en4vka",
  "venue": "The Astrophysical Journal",
  "versions": []
}