{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"49d23e535de20e80d94957605db3ada5d093918147f81cec794833bb70a7e098","created":"2026-10-15T23:43:22Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["ce59fb6cd812fc05906d0c60a71c75ea22bc686bcf38e7c3ef7010834d98ee7b","fb3295f7e5123579ad2a09ba5ff74518d3c4bd2f5b4197cb0f6231982bc8de9c"],"salt":"afa472de0f967d8c0c33ce63d0f7b68044822d3a7a9b2de79b0a35e1ae19e0f4","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"astro.solar-corona-wind.coronal-heating","kind":"phenomenon","literature_status":"open","n":"2","parents":[],"plain":"Energy from churning gas below the surface must be carried up by magnetic fields and released in the corona; how it is released is unknown.","posed_since":"","precise":"The quiet corona requires an energy flux of $\\sim 3 \\times 10^{5}\\ \\mathrm{erg}\\ \\mathrm{cm}^{-2}\\ \\mathrm{s}^{-1}$ and active regions $\\sim 10^{7}\\ \\mathrm{erg}\\ \\mathrm{cm}^{-2}\\ \\mathrm{s}^{-1}$. Determine the dominant dissipation mechanism: Alfven-wave turbulence, resonant absorption and phase mixing of waves, or nanoflares (small reconnection events) in braided fields. Answer: mechanisms with energy fluxes matching these requirements, by region type.","problem_ref":"fb3295f7e5123579ad2a09ba5ff74518d3c4bd2f5b4197cb0f6231982bc8de9c","references":"","settled_by":"Observations resolving the energy flux in waves and in small reconnection events at the base of the corona, matched to the required heating by region type.","status_note":"","title":"What heats the solar corona above $10^{6}\\ \\mathrm{K}$?","topic_ref":null},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"9af4de09546fc518cf61ef1d666a626ccd42e2aba68b45b51d4d9e74659f978a","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"4473ea78f152fd1d7f340bf019a647ba15064faab8a107c2d99aa47f5fa83323","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"MZMm5DZCcYA0BiOsXe5N-HifQyzG6v1dpSAQLEEulRngl1QUtEFGczQm9ls7RSqRuTgqKlXYD9KIKuCIdzNKBw"},"schema":"pubphys.envelope/1"},"record_hash":"9af4de09546fc518cf61ef1d666a626ccd42e2aba68b45b51d4d9e74659f978a","leaf_index":2424}