{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.super-soft-x-ray-source","code":"thing-q1060667","url":"https://ver.cy/models/thing/q1060667/","name":"super soft X-ray source","alternateNames":[],"kind":"thing","status":"published","version":"0.2.0-wave.2","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.SPC"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A class of astronomical X-ray sources emitting mainly very low-energy X-rays with luminosities comparable to bright X-ray binaries, interpreted in most cases as white dwarfs steadily burning hydrogen accreted from a companion star; supersoft sources are candidate progenitors of Type Ia supernovae and were recognised as a class from ROSAT observations in the early 1990s.","purpose":"Let an agent explain supersoft X-ray sources, their interpretation and significance for supernova progenitors, with attribution and sourced data.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Soft X-ray emission","Steady nuclear burning on white dwarfs","Binary systems","Supernova progenitor candidates"],"structure":{"bundles":[{"id":"define","name":"Define","description":"What they are.","layers":[{"id":"spectrum","name":"Spectrum","description":"Soft X-rays.","findings":[{"id":"spectrum-finding","name":"Spectrum","description":"Spectrum.","questions":[{"text":"What X-ray temperatures and luminosities define a supersoft source?","kind":"measurement"},{"text":"How were they discovered as a class?","kind":"provenance"}]}]},{"id":"model","name":"Model","description":"Accreting white dwarfs.","findings":[{"id":"model-finding","name":"Model","description":"Model.","questions":[{"text":"How does steady hydrogen burning on a white dwarf explain the emission, according to the standard model?","kind":"provenance"},{"text":"What accretion rates are needed?","kind":"measurement"}]}]}]},{"id":"significance","name":"Significance","description":"Why they matter.","layers":[{"id":"supernovae","name":"Supernovae","description":"Type Ia progenitors.","findings":[{"id":"supernovae-finding","name":"Supernovae","description":"Progenitors.","questions":[{"text":"How might supersoft sources lead to Type Ia supernovae, and what do observations say about the rates?","kind":"provenance"},{"text":"Which alternative progenitor channels exist?","kind":"boundary"}]}]},{"id":"evolution","name":"Evolution","description":"Binary evolution.","findings":[{"id":"evolution-finding","name":"Evolution","description":"Binary evolution.","questions":[{"text":"What evolutionary paths produce supersoft sources?","kind":"provenance"},{"text":"How long do the phases last?","kind":"measurement"}]}]}]},{"id":"observe","name":"Observe","description":"Observations.","layers":[{"id":"catalogues","name":"Catalogues","description":"Known sources.","findings":[{"id":"catalogues-finding","name":"Catalogues","description":"Catalogues.","questions":[{"text":"Which supersoft sources are known, and in which galaxies?","kind":"provenance"},{"text":"Which missions observed them?","kind":"provenance"}]}]},{"id":"absorption","name":"Absorption","description":"Detection limits.","findings":[{"id":"absorption-finding","name":"Absorption","description":"Detection limits.","questions":[{"text":"Why are supersoft sources hard to detect in the Galactic plane?","kind":"definition"},{"text":"How does interstellar absorption affect them?","kind":"definition"}]}]}]},{"id":"learn","name":"Learn","description":"Explaining.","layers":[{"id":"explain","name":"Explain","description":"Plain language.","findings":[{"id":"explain-finding","name":"Explain","description":"Plain explanation.","questions":[{"text":"How can supersoft sources be explained simply and accurately?","kind":"action"},{"text":"Which caveats apply?","kind":"boundary"}]}]},{"id":"reviews","name":"Reviews","description":"Literature.","findings":[{"id":"reviews-finding","name":"Reviews","description":"Literature.","questions":[{"text":"Which reviews summarise supersoft sources?","kind":"provenance"},{"text":"Which open questions remain?","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Explain what super soft X-ray sources are and the white dwarf models proposed for them.","Report catalogued sources with their sources and classification status."],"mustNot":["Present a model interpretation as settled fact.","Invent parameters for sources that have not been measured.","Misattribute discoveries to the wrong observatories or researchers."],"requiresHuman":["Publishing a new classification of a source."]},"ethics":{"considerations":["Accurate attribution and honest uncertainty sustain trust in research."],"affectedParties":["Astronomers","Students and readers"]},"owners":{"steward":"Nobody owns the objects; astronomical catalogues record them.","roles":[],"masterSystems":["Astronomical object databases"]},"relations":[{"target":"Q2154519","type":"parent","note":"registry parent class"},{"target":"astrophysical X-ray source","type":"related","note":"category"},{"target":"ultraluminous X-ray source","type":"related","note":"other X-ray class"},{"target":"Be X-ray binaries","type":"related","note":"other X-ray binaries"},{"target":"celestial body","type":"related","note":"broader class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.super-soft-x-ray-source","Wikidata: Q1060667 (https://www.wikidata.org/wiki/Q1060667)"]},"properties":{"applicability":"required","items":["Characteristic photon energy:  keV - The low-energy X-ray spectrum is measured with an X-ray detector and interpreted with corrections for instrumental response and intervening absorption.","Effective emission temperature:  K - Temperature is inferred by fitting an emission model to the observed spectrum and depends on the chosen model.","Radiative luminosity:  W - Luminosity is inferred from flux, distance and absorption estimates with the spectral band or bolometric correction stated."]},"recognition":{"applicability":"required","items":["Very soft X-ray spectra","High luminosity","Ordinary X-ray binaries emit harder X-rays","Not visible optically as such; point sources in soft X-ray images."]},"capabilities":{"applicability":"required","items":["explain what defines a supersoft source","describe the accreting white dwarf model","relate them to Type Ia supernova progenitors","find catalogues and observations"]},"hazards":{"applicability":"required","items":["Presenting the progenitor link as settled","Confusing with other soft X-ray emitters"]},"interfaces":{"applicability":"required","items":["No regulation"]},"context":{"applicability":"required","items":["High-energy astrophysics and stellar evolution.","close binary supersoft sources","symbiotic supersoft sources","post-nova supersoft phases","supersoft sources in nearby galaxies"]}},"sources":[{"title":"Wikidata item Q1060667: super soft X-ray source","url":"https://www.wikidata.org/wiki/Q1060667","note":"identity and sense of the item"},{"title":"Wikipedia: Supersoft X-ray source","url":"https://en.wikipedia.org/wiki/Supersoft_X-ray_source","note":"general description of the item"}],"openQuestions":["Should notable sources be separate entries?","How should X-ray catalogues be linked?","How should progenitor debates be attributed?"],"resources":{"spec":"/models/things/publications/thing-q1060667/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1060667/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-11T20:12:02Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}