{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T10:06:49Z",
    "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": "2026-10-05T13:25:41+00:00",
      "fields": [
        "agent_conduct",
        "ethics",
        "owners"
      ]
    }
  },
  "metaModel": {
    "id": "THING-Q836976",
    "registryId": "vr.tr.delta-scuti-variable",
    "name": "Delta Scuti variable",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "PHY.SPC"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q836976/",
  "model": {
    "registry_id": "vr.tr.delta-scuti-variable",
    "name": "Delta Scuti variable",
    "purpose": "Let an agent describe Delta Scuti variables by star, periods, amplitude and asteroseismology, with sourced data.",
    "definition": "A pulsating variable star of spectral type A or F near the main sequence, varying in brightness with periods of about 0.02 to 0.25 days through radial and non-radial pulsations; SX Phoenicis stars are a related metal-poor group.",
    "what_it_is_for": "Asteroseismology and understanding stellar interiors.",
    "affordances": [
      "look up periods and amplitudes",
      "explain asteroseismology in general terms",
      "find photometric data from surveys",
      "distinguish related classes"
    ],
    "distinguishing_features": [
      "Short-period pulsation",
      "Multiple pulsation modes",
      "Near the main sequence",
      "Used in asteroseismology"
    ],
    "appearance": "White or yellow-white stars with small, rapid brightness changes.",
    "visual_identification": [
      "Spectral types A to F",
      "Periods of hours",
      "RR Lyrae stars have longer periods and larger amplitudes"
    ],
    "physical_properties": [
      {
        "quantity": "period",
        "typical_range": "about 0.02-0.25",
        "unit": "days",
        "note": ""
      },
      {
        "quantity": "amplitude",
        "typical_range": "up to about 0.9",
        "unit": "magnitudes",
        "note": "most much smaller"
      }
    ],
    "families_and_kinds": [
      "low-amplitude Delta Scuti stars",
      "high-amplitude Delta Scuti stars",
      "SX Phoenicis variables"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "pulsating variable star",
        "why": "category"
      },
      {
        "relation": "is named after",
        "target": "Delta Scuti",
        "why": "prototype"
      },
      {
        "relation": "is studied by",
        "target": "asteroseismology",
        "why": "field"
      },
      {
        "relation": "is catalogued in",
        "target": "GCVS and VSX",
        "why": "catalogues"
      }
    ],
    "identifiers": [
      {
        "scheme": "GCVS type",
        "value_or_pattern": "DSCT",
        "note": "variable star type"
      }
    ],
    "standards_and_regulation": [
      "IAU variable star nomenclature"
    ],
    "failure_modes_and_hazards": [
      "Misclassification with similar pulsators",
      "Overinterpreting mode identifications"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": [],
    "agent_conduct": {
      "may": [
        "Report periods, amplitudes and classification of Delta Scuti variables from catalogues, citing them.",
        "Analyse public light curves to find pulsation frequencies."
      ],
      "must_not": [
        "Classify a star as a Delta Scuti variable without the evidence the classification needs.",
        "Present noisy or uncertain frequencies as firm results.",
        "Use other observers' data without crediting them."
      ],
      "requires_human": [
        "Submitting new variable star classifications to a catalogue."
      ]
    },
    "ethics": {
      "considerations": [
        "Amateur observers contribute much of the data; their work deserves credit.",
        "Errors in catalogues propagate into later research."
      ],
      "affected_parties": [
        "Professional and amateur astronomers",
        "Users of catalogues"
      ]
    },
    "owners": {
      "steward": "Nobody: natural objects in space; variable star catalogues record them.",
      "master_systems": [
        "Variable star catalogues"
      ]
    }
  },
  "sources": [],
  "structure": {
    "bundles": [
      {
        "id": "identity",
        "name": "Identity",
        "description": "Which star.",
        "rationale": "Catalogues identify.",
        "layers": [
          {
            "id": "designation",
            "name": "Designation",
            "description": "Name.",
            "findings": [
              {
                "id": "designation-finding",
                "name": "Designation",
                "description": "Designation.",
                "questions": [
                  {
                    "text": "Which star is meant, and what is its variable type?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which catalogue classifies it?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "type",
            "name": "Type",
            "description": "Spectral type.",
            "findings": [
              {
                "id": "type-finding",
                "name": "Type",
                "description": "Spectral type.",
                "questions": [
                  {
                    "text": "What is its spectral type and luminosity class?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How far away is it?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "variability",
        "name": "Variability",
        "description": "Light curve.",
        "rationale": "Pulsations are multiple.",
        "layers": [
          {
            "id": "periods",
            "name": "Periods",
            "description": "Frequencies.",
            "findings": [
              {
                "id": "periods-finding",
                "name": "Periods",
                "description": "Periods.",
                "questions": [
                  {
                    "text": "What pulsation periods are detected?",
                    "kind": "measurement"
                  },
                  {
                    "text": "From which survey data?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          },
          {
            "id": "amplitude",
            "name": "Amplitude",
            "description": "Range.",
            "findings": [
              {
                "id": "amplitude-finding",
                "name": "Amplitude",
                "description": "Amplitude.",
                "questions": [
                  {
                    "text": "What is the amplitude of variation?",
                    "kind": "measurement"
                  },
                  {
                    "text": "Is it low or high amplitude?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "science",
        "name": "Science",
        "description": "Asteroseismology.",
        "rationale": "Pulsations probe interiors.",
        "layers": [
          {
            "id": "modes",
            "name": "Modes",
            "description": "Identification.",
            "findings": [
              {
                "id": "modes-finding",
                "name": "Modes",
                "description": "Pulsation modes.",
                "questions": [
                  {
                    "text": "Which modes have been identified, according to studies?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How certain are they?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "interior",
            "name": "Interior",
            "description": "Structure.",
            "findings": [
              {
                "id": "interior-finding",
                "name": "Interior",
                "description": "Interior structure.",
                "questions": [
                  {
                    "text": "What do the pulsations reveal about the interior?",
                    "kind": "provenance"
                  },
                  {
                    "text": "Which models are used?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "observing",
        "name": "Observing",
        "description": "Contributing.",
        "rationale": "Observers contribute.",
        "layers": [
          {
            "id": "equipment",
            "name": "Equipment",
            "description": "Photometry.",
            "findings": [
              {
                "id": "equipment-finding",
                "name": "Equipment",
                "description": "Equipment.",
                "questions": [
                  {
                    "text": "What equipment is needed to detect the variation?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is time-series photometry required?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "submit",
            "name": "Submit",
            "description": "Databases.",
            "findings": [
              {
                "id": "submit-finding",
                "name": "Submit",
                "description": "Submitting data.",
                "questions": [
                  {
                    "text": "How can observations be submitted to variable star databases?",
                    "kind": "action"
                  },
                  {
                    "text": "Which organisation runs them?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should SX Phoenicis stars be a separate entry?",
    "How should survey light curves be linked?",
    "How should mode identifications be recorded?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}