{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"ff78fa5aaa63c334beafe65386f2799b533dfb0246cf664eceb66247318a7ec4","created":"2026-10-03T07:17:55Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"1be276f482805191f0360719c89b7195774a18e6b590359a99f1fd5c273b5a5a","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":"1","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 $\\sim 3e5\\ \\mathrm{erg}\\ \\mathrm{cm}^{-2}\\ \\mathrm{s}^{-1}$ and active regions $\\sim 1e7\\ \\mathrm{erg}\\ \\mathrm{cm}^{-2}\\ \\mathrm{s}^{-1}$. 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":null,"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 $1e6\\ \\mathrm{K}$?","topic_ref":"065c0eeceaa7f840ee16fc5402d7cfeff05073c085c4558fd4ac6d41a8197c11"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"fb3295f7e5123579ad2a09ba5ff74518d3c4bd2f5b4197cb0f6231982bc8de9c","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"dd83661a283b71150b78cebe5d0dc242e3197730b7e4a55e5836a662909ef115","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"FyjF9L9Zakvmz4-U5X-bir5_l0q2QucPWBzo_kAZCVsTp0K_arg0FTpkm3LLa3EUcAVX8Nc_TjcMyyWLWk4RDg"},"schema":"pubphys.envelope/1"},"record_hash":"fb3295f7e5123579ad2a09ba5ff74518d3c4bd2f5b4197cb0f6231982bc8de9c","leaf_index":612}