{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T10:25:10Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 1,
    "engine": "claude",
    "enrichment": {
      "pass": 3,
      "engine": "claude",
      "producedAt": "2026-10-05T17:00:00Z",
      "ingestedAt": "2026-10-05T13:29:41+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    },
    "revisions": [
      {
        "at": "2026-10-07T11:39:57+00:00",
        "engine": "codex",
        "fields": [
          "definition",
          "distinguishing_features",
          "visual_identification"
        ],
        "answering_review": "0dbefe8d56da1d738cd43b977f8e04bbe86df3cdc12403f9defb3475b9456daa"
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    "gate": {
      "passed": true,
      "version": "1.0",
      "at": "2026-10-07T12:16:34+00:00",
      "evidence": [
        "completeness 1.00",
        "sense: Wikidata description",
        "2 live sources",
        "review by codex: pass"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q812800",
    "registryId": "vr.tr.be-type-star",
    "name": "Be-type star",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.SPC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q812800/",
  "model": {
    "registry_id": "vr.tr.be-type-star",
    "name": "Be-type star",
    "purpose": "Let an agent describe Be stars by example, disk properties, variability and observation, with sourced data.",
    "definition": "A Be-type star, in this sense, is a B-type star whose spectrum shows emission lines, encompassing classical Be stars with circumstellar decretion disks and other B-type emission-line stars, including young Herbig Be stars; Gamma Cassiopeiae and Achernar are classical examples, with shell stars and Lambda Eridani variables as related classes.",
    "what_it_is_for": "Studying rapid rotation, mass loss and disks around hot stars.",
    "affordances": [
      "identify Be star examples",
      "explain emission lines and disks",
      "find spectroscopic data",
      "contribute amateur spectroscopy"
    ],
    "distinguishing_features": [
      "A B-type spectrum with emission lines defines this sense.",
      "Classical Be stars have circumstellar decretion disks.",
      "Disks in classical Be stars can vary.",
      "Classical Be stars are usually rapid rotators."
    ],
    "appearance": "Hot blue-white stars; their disks are detected in spectra rather than seen directly.",
    "visual_identification": [
      "Hydrogen emission lines, especially H-alpha, are common spectral indicators.",
      "Rapid rotation is characteristic of classical Be stars but is not required across this broader sense.",
      "Herbig Be stars are young B-type emission-line stars included in this sense, while Herbig Ae stars are A-type stars."
    ],
    "physical_properties": [
      {
        "quantity": "Effective temperature",
        "unit": "K",
        "typical_range": "",
        "note": "Effective temperature is inferred from stellar spectra and atmosphere models with allowance for rapid rotation and disk emission."
      },
      {
        "quantity": "Projected equatorial rotation speed",
        "unit": "km/s",
        "typical_range": "",
        "note": "Projected rotation speed is inferred from photospheric spectral line broadening and depends on viewing inclination."
      },
      {
        "quantity": "Circumstellar disk radius",
        "unit": "AU",
        "typical_range": "",
        "note": "Disk radius is inferred from interferometry or emission models and depends on the wavelength and boundary definition."
      }
    ],
    "families_and_kinds": [
      "classical Be stars",
      "shell stars",
      "Be/X-ray binaries",
      "Lambda Eridani variables",
      "Gamma Cassiopeiae analogues"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "B-type star and emission-line star",
        "why": "category"
      },
      {
        "relation": "has",
        "target": "decretion disk",
        "why": "structure"
      },
      {
        "relation": "is contrasted with",
        "target": "Herbig Ae/Be star",
        "why": "young star class"
      },
      {
        "relation": "includes",
        "target": "Gamma Cassiopeiae",
        "why": "example"
      }
    ],
    "identifiers": [
      {
        "scheme": "Be Star Spectra database",
        "value_or_pattern": "BeSS entries",
        "note": "spectra"
      }
    ],
    "standards_and_regulation": [
      "MK spectral classification"
    ],
    "failure_modes_and_hazards": [
      "Confusing classical Be and Herbig Be stars",
      "Overinterpreting single spectra"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Report spectral and variability data of Be stars from catalogues, citing them.",
        "Analyse spectra to detect emission lines and disk changes."
      ],
      "must_not": [
        "Classify a star as a Be star without spectral evidence.",
        "Present uncertain measurements as firm.",
        "Use other observers' spectra without credit."
      ],
      "requires_human": [
        "Submitting new classifications to a catalogue."
      ]
    },
    "ethics": {
      "considerations": [
        "Amateur spectroscopists contribute data and deserve credit.",
        "Errors in catalogues propagate into later research."
      ],
      "affected_parties": [
        "Astronomers and observers",
        "Users of catalogues"
      ]
    },
    "owners": {
      "steward": "Nobody: natural objects in space; star catalogues record them.",
      "master_systems": [
        "Star catalogues"
      ]
    }
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q812800: Be-type star",
      "url": "https://www.wikidata.org/wiki/Q812800",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Be star",
      "url": "https://en.wikipedia.org/wiki/Be_star",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "star",
        "name": "Star",
        "description": "Which star.",
        "rationale": "Catalogues identify.",
        "layers": [
          {
            "id": "identity",
            "name": "Identity",
            "description": "Designation.",
            "findings": [
              {
                "id": "identity-finding",
                "name": "Identity",
                "description": "Designation.",
                "questions": [
                  {
                    "text": "Which Be star is meant, and what is its spectral type?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How far away is it?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          },
          {
            "id": "class",
            "name": "Class",
            "description": "Subclass.",
            "findings": [
              {
                "id": "class-finding",
                "name": "Class",
                "description": "Subclass.",
                "questions": [
                  {
                    "text": "Is it a classical Be, shell or Be/X-ray binary star?",
                    "kind": "definition"
                  },
                  {
                    "text": "What evidence supports this?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "disk",
        "name": "Disk",
        "description": "Circumstellar disk.",
        "rationale": "Disks come and go.",
        "layers": [
          {
            "id": "emission",
            "name": "Emission",
            "description": "H-alpha.",
            "findings": [
              {
                "id": "emission-finding",
                "name": "Emission",
                "description": "Emission lines.",
                "questions": [
                  {
                    "text": "What do the emission lines show about the disk?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How strong is H-alpha emission?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          },
          {
            "id": "variability",
            "name": "Variability",
            "description": "Disk changes.",
            "findings": [
              {
                "id": "variability-finding",
                "name": "Variability",
                "description": "Variability.",
                "questions": [
                  {
                    "text": "Has the disk grown or dissipated over time?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which monitoring shows it?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "physics",
        "name": "Physics",
        "description": "Causes.",
        "rationale": "Rotation is key.",
        "layers": [
          {
            "id": "rotation",
            "name": "Rotation",
            "description": "Near-critical.",
            "findings": [
              {
                "id": "rotation-finding",
                "name": "Rotation",
                "description": "Rotation.",
                "questions": [
                  {
                    "text": "How fast does the star rotate relative to its critical speed?",
                    "kind": "measurement"
                  },
                  {
                    "text": "How is it measured?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "binarity",
            "name": "Binarity",
            "description": "Companions.",
            "findings": [
              {
                "id": "binarity-finding",
                "name": "Binarity",
                "description": "Companions.",
                "questions": [
                  {
                    "text": "Is a companion star known?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Does it affect the disk?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "observing",
        "name": "Observing",
        "description": "Amateur spectroscopy.",
        "rationale": "Amateurs contribute.",
        "layers": [
          {
            "id": "spectra",
            "name": "Spectra",
            "description": "Equipment.",
            "findings": [
              {
                "id": "spectra-finding",
                "name": "Spectra",
                "description": "Amateur spectra.",
                "questions": [
                  {
                    "text": "Can amateur spectrographs detect the emission?",
                    "kind": "boundary"
                  },
                  {
                    "text": "What equipment is needed?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "submit",
            "name": "Submit",
            "description": "Databases.",
            "findings": [
              {
                "id": "submit-finding",
                "name": "Submit",
                "description": "Submitting spectra.",
                "questions": [
                  {
                    "text": "How can spectra be submitted to the BeSS database?",
                    "kind": "action"
                  },
                  {
                    "text": "What standards apply?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should subclasses be separate entries?",
    "How should spectra databases be linked?",
    "How should binarity be recorded?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}