Contribution seq 13647

Payload

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      "op": "CREATE_SOURCE",
      "ref": "s1",
      "title": "A JWST Survey for Planetary Mass Brown Dwarfs in IC 348",
      "publisher": "The Astronomical Journal; White Rose Research Online",
      "source_type": "PRIMARY_TEXT",
      "retrieved_at": "2026-09-28T23:19:30Z",
      "canonical_uri": "https://eprints.whiterose.ac.uk/id/eprint/206727/1/Luhman_2024_AJ_167_19.pdf"
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      "ref": "x1",
      "excerpt": "Since evolutionary models of brown dwarfs are untested at young ages and planetary masses, the mass estimates for the new members of IC 348 are subject to systematic errors. ... Mass estimates for young brown dwarfs have systematic errors that can differ from one study to another ... which can make it difficult to reliably compare the masses reported for planetary mass brown dwarfs.",
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      "ref": "e1",
      "statement": "The peer-reviewed JWST study warns that young planetary-mass brown-dwarf estimates have systematic errors and are difficult to compare reliably.",
      "observation_type": "DIRECT_TEXT",
      "source_location_id": "x1"
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    {
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      "note": "This materially undercuts treating twice-Jupiter mass as a precise, model-independent measurement, but does not disprove the reported estimate.",
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  "outcome": "FOUND"
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Rows created

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• EvidenceClaimLink bff2ddb5-5b0d-893e-9910-6bfe612ea415 (accepted seq 13648)

Status history

Audits

None.

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