{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.quasi-star","code":"thing-q1439884","url":"https://ver.cy/models/thing/q1439884/","name":"quasi-star","alternateNames":[],"kind":"thing","status":"research-draft","version":"0.2.0-wave.1","language":"en","classifiers":{"family":"Thing Registry","category":"","entryKind":"","plane":"","domain":["PHY.SPC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A hypothetical type of very massive, extremely luminous object proposed to have existed in the early universe, in which a black hole forms in the core of a massive protostar and grows by accretion inside the surrounding envelope; proposed by astrophysicists as one route to early supermassive black holes, and not confirmed by observation.","purpose":"Let an agent explain quasi-stars as a hypothesis, with attributed models, the evidence being sought and the difference from quasars.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Hypothetical","Black hole inside a stellar envelope","Early universe","Possible seed for supermassive black holes"],"structure":{"bundles":[{"id":"hypothesis","name":"Hypothesis","description":"What is proposed.","layers":[{"id":"model","name":"Model","description":"Proposed structure.","findings":[{"id":"model-finding","name":"Model","description":"Model.","questions":[{"text":"How do the proposing authors describe a quasi-star structure?","kind":"provenance"},{"text":"What conditions would be needed to form one?","kind":"definition"}]}]},{"id":"status","name":"Status","description":"Evidence.","findings":[{"id":"status-finding","name":"Status","description":"Evidential status.","questions":[{"text":"Has any quasi-star been observed?","kind":"boundary"},{"text":"Which observations could test the idea?","kind":"provenance"}]}]}]},{"id":"context","name":"Context","description":"Black hole seeds.","layers":[{"id":"seeds","name":"Seeds","description":"Early black holes.","findings":[{"id":"seeds-finding","name":"Seeds","description":"Black hole seeds.","questions":[{"text":"Why do astronomers need to explain early supermassive black holes?","kind":"definition"},{"text":"Which alternative seed models exist?","kind":"provenance"}]}]},{"id":"jwst","name":"Observations","description":"Recent surveys.","findings":[{"id":"jwst-finding","name":"Observations","description":"Recent observations.","questions":[{"text":"What do recent deep-field observations suggest about early black holes?","kind":"provenance"},{"text":"Are interpretations debated?","kind":"boundary"}]}]}]},{"id":"distinctions","name":"Distinctions","description":"Related terms.","layers":[{"id":"quasar","name":"Quasar","description":"Different object.","findings":[{"id":"quasar-finding","name":"Quasar","description":"Quasars.","questions":[{"text":"How does a quasi-star differ from a quasar?","kind":"boundary"},{"text":"Which entry fits the user question?","kind":"action"}]}]},{"id":"supermassive","name":"Supermassive star","description":"Related idea.","findings":[{"id":"supermassive-finding","name":"Supermassive star","description":"Supermassive stars.","questions":[{"text":"How do supermassive star models differ from quasi-stars?","kind":"definition"},{"text":"Which authors propose them?","kind":"provenance"}]}]}]},{"id":"learning","name":"Learning","description":"Explaining.","layers":[{"id":"explain","name":"Explain","description":"Plain language.","findings":[{"id":"explain-finding","name":"Explain","description":"Plain explanation.","questions":[{"text":"How can the quasi-star idea be explained simply and accurately?","kind":"action"},{"text":"Which caveats must be included?","kind":"boundary"}]}]},{"id":"sources","name":"Sources","description":"Literature.","findings":[{"id":"sources-finding","name":"Sources","description":"Literature.","questions":[{"text":"Which peer-reviewed papers introduced and developed the idea?","kind":"provenance"},{"text":"Which reviews summarise it?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["explain the quasi-star hypothesis","distinguish quasi-stars from quasars","summarise related models of black hole seeds","find observational searches"],"mustNot":[],"requiresHuman":[]},"ethics":{"considerations":[],"affectedParties":[]},"owners":{"steward":"","roles":[],"masterSystems":[]},"relations":[{"target":"hypothetical star","type":"related","note":"category"},{"target":"supermassive black hole","type":"related","note":"outcome"},{"target":"quasar","type":"related","note":"different object"},{"target":"theoretical astrophysics","type":"related","note":"field"}],"interaction":{"identity":{"applicability":"required","items":[]},"properties":{"applicability":"required","items":[]},"recognition":{"applicability":"required","items":["Hypothetical early-universe objects","Central black hole in a stellar envelope","Quasars are observed active galactic nuclei","Not observed; depicted in models as a huge, cool envelope around a central black hole."]},"capabilities":{"applicability":"required","items":["explain the quasi-star hypothesis","distinguish quasi-stars from quasars","summarise related models of black hole seeds","find observational searches"]},"hazards":{"applicability":"required","items":["Presenting a hypothesis as established","Confusing with quasars"]},"interfaces":{"applicability":"required","items":["No specific regulation"]},"context":{"applicability":"required","items":["Theoretical astrophysics and the origin of supermassive black holes.","quasi-star models","direct-collapse black hole seeds (related)","supermassive star models (related)"]}},"sources":[],"openQuestions":["Should black hole seed models be separate entries?","How should observational claims be tracked?","How should competing models be attributed?","Which entry fits the user question?","How can the quasi-star idea be explained simply and accurately?"],"resources":{"spec":"/models/things/publications/thing-q1439884/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1439884/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T12:48:55Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"derived","ethics":"missing","owners":"missing","relations":"filled","interaction.identity":"missing","interaction.properties":"missing","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"missing"},"notes":{"agentConduct":"Affordances listed as what may be done; prohibitions collected from the text.","sources":"Written from model knowledge without web access; claims are unverified."},"score":0.676}}