{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.revision/1","content_sha256":"65c2d2398a70b6416c13b6234bafa9b1361a7e9e5e7e2255371a05c7c4554fc4","created":"2026-10-03T07:17:55Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":["5475cf5dc5b1a72283d26dc95dc6e00d7ea4e00096a7c6492e409a1816eeb011"],"salt":"588b02328049c4e604ef8cd24f460cc4d4c54d3a3ed8bcba9d0bb036a0b7c163","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"revision"},"content":{"answer_type":"mechanism","assisted_by":[],"external_id":"astro.high-energy-neutrino-sources.seyfert-coronae","kind":"phenomenon","literature_status":"open","n":"1","parents":[],"plain":"The nearby active galaxy NGC 1068 emits far more energy in neutrinos than in gamma rays, which suggests the particles are made in a dense, hot region next to its black hole that absorbs the gamma rays.","posed_since":"2022","precise":"For NGC 1068 (neutrino luminosity $\\sim 3e42\\ \\mathrm{erg}/\\mathrm{s}$ at 1.5-15 TeV, with a GeV-TeV gamma-ray flux far lower), determine where and how protons are accelerated to $\\sim 1e14\\ \\mathrm{eV}$ within $\\sim 10\\ \\text{to}\\ 100$ gravitational radii of the black hole (turbulent acceleration, magnetic reconnection, accretion shocks), and whether the model predicts how neutrino luminosity scales with intrinsic X-ray luminosity across Seyferts. Answer: a model giving $L_{\\nu}/L_{X}$ and the spectral shape, tested against the Seyfert sample.","problem_ref":null,"references":"","settled_by":"Detection of neutrinos from several further Seyferts with fluxes matching the predicted $L_{\\nu}/L_{\\mathrm{X}}$ scaling, and MeV gamma-ray observations of the cascaded emission.","status_note":"","title":"How do Seyfert coronae make neutrinos while hiding gamma rays?","topic_ref":"05faf7b2786da464712d8108b8ce0e3e18f89534b1760bb4d3030768e35f2a73"},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"c38e12c7a3a7091aafd36dd21b8882f9f0d3a85f50ec6aa3351376bf76e103f5","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"a5f2b55de3d3d51f1b87f14cb0dc3107d9c660126cad4437fe466cfbed11bacd","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"o_mCzBCxc_nPe4A469DxyntVbCqttTtYUCg8-sbksrtcjyAHD2FL5Fhn0xSqHxyvQ_IrS9CYwZuww5EBMCH2Dw"},"schema":"pubphys.envelope/1"},"record_hash":"c38e12c7a3a7091aafd36dd21b8882f9f0d3a85f50ec6aa3351376bf76e103f5","leaf_index":554}