{"paper":{"title":"Non-thermal Synchrotron Emission and Polarization Signatures during Black Hole Flux Eruptions","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Anisotropic non-thermal electrons are essential for interpreting time-variable EHT polarimetric observations of black hole flux eruptions.","cross_cats":["gr-qc"],"primary_cat":"astro-ph.HE","authors_text":"Bin Chen, Fan Zhou, Jiewei Huang, Minyong Guo, Yehui Hou, Yuehang Li, Zhenyu Zhang","submitted_at":"2025-12-07T11:37:31Z","abstract_excerpt":"In this work, we investigate synchrotron emission and the observational signatures of anisotropic non-thermal electrons during magnetic-flux eruptions in a magnetically arrested disk, using 3D GRMHD simulations. Non-thermal electrons are assumed to be accelerated from the thermal background through magnetic reconnection, with pitch-angle distributions modeled as beamed or loss-cone types, alongside an isotropic case for comparison. The results show that non-thermal emission can produce pronounced flux outbursts and localized brightening during eruptions, while the associated increase in optica"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Incorporating anisotropic non-thermal electrons is essential for a physically self-consistent interpretation of time-variable EHT polarimetric observations.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"Non-thermal electrons are accelerated from the thermal background through magnetic reconnection and follow beamed or loss-cone pitch-angle distributions that remain fixed during the eruption.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Non-thermal electrons with anisotropic pitch angles during flux eruptions produce flux outbursts, localized brightening, and suppressed linear polarization in black hole disk images.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Anisotropic non-thermal electrons are essential for interpreting time-variable EHT polarimetric observations of black hole flux eruptions.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"7817a7033fe57e590cf5b66645920d5a584dfcf78fa1bbc2857cb6212eff73f3"},"source":{"id":"2512.06803","kind":"arxiv","version":2},"verdict":{"id":"c3c70e74-f307-459e-981b-d811de926880","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-17T01:07:17.387515Z","strongest_claim":"Incorporating anisotropic non-thermal electrons is essential for a physically self-consistent interpretation of time-variable EHT polarimetric observations.","one_line_summary":"Non-thermal electrons with anisotropic pitch angles during flux eruptions produce flux outbursts, localized brightening, and suppressed linear polarization in black hole disk images.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"Non-thermal electrons are accelerated from the thermal background through magnetic reconnection and follow beamed or loss-cone pitch-angle distributions that remain fixed during the eruption.","pith_extraction_headline":"Anisotropic non-thermal electrons are essential for interpreting time-variable EHT polarimetric observations of black hole flux eruptions."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2512.06803/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":3,"sample":[{"doi":"","year":null,"title":"\" * write output.state after.block = add.period write newline","work_id":"06e2ac09-876d-43b6-8afa-76a731c0d42d","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":null,"title":"write newline","work_id":"3bb0849e-6a94-4c9f-b043-ce961d129fa6","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"10.5281/zenodo.831784","year":2021,"title":"flux densities","work_id":"fe79f2f6-38d5-4636-a1a5-8cc1b59fcfd4","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":3,"snapshot_sha256":"31e44e9a0d709116134cf3248302be028dc2822f51d873a9a20d2bbf18c4b64c","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"a7185aa8b30276f79b452e6094673daa8e0a6e806d2c4637478cf4b79f698976"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}