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We detect the presence of a faint, extended, bilateral radio shell of the size of around 30' diameter and ASKAP radio flux density of 1.5^{+1.5}_{-0.1} Jy with no obvious infrared counterparts."},{"attestation":"unclaimed","claim_id":"C2","kind":"weakest_assumption","source":"verdict.weakest_assumption","status":"machine_extracted","text":"The identification as a supernova remnant rests on the assumption that the observed radio morphology, linear polarization, lack of infrared counterparts, and spatial coincidence with a GeV source are sufficient to rule out other origins such as a planetary nebula or H II region, without direct kinematic evidence of expansion or X-ray detection."},{"attestation":"unclaimed","claim_id":"C3","kind":"one_line_summary","source":"verdict.one_line_summary","status":"machine_extracted","text":"Abeona is confirmed as a faint ~30 arcmin bilateral radio SNR shell with synchrotron polarization, flux density 1.5 Jy, and a spatially coincident 5.7-sigma GeV gamma-ray source."},{"attestation":"unclaimed","claim_id":"C4","kind":"headline","source":"verdict.pith_extraction.headline","status":"machine_extracted","text":"Radio observations confirm G310.7-5.4 as the supernova remnant Abeona with a gamma-ray counterpart"}],"snapshot_sha256":"65ce78a5ae7fdac522207997c08d5668de00f6f5e85c61d31c5a91c8f9ecd225"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[{"findings_count":0,"name":"ai_meta_artifact","ran_at":"2026-05-21T15:41:45.302100Z","status":"completed","version":"1.0.0"},{"findings_count":0,"name":"doi_compliance","ran_at":"2026-05-20T02:32:53.545812Z","status":"completed","version":"1.0.0"}],"endpoint":"/pith/2604.19897/integrity.json","findings":[],"snapshot_sha256":"3d8fae71f41c0aa8804ab65e1ae9fb9dac0afd11965d01211f57b697d2bdfcb0","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"G310.7-5.4 is a supernova remnant (SNR) candidate identified as a faint shell in the second epoch Molonglo Galactic Plane Survey (MGPS-2), but this has not been followed up with multi-wavelength observations until now. It is an example of an SNR at high Galactic latitude showing spatially coinciding $\\gamma$-ray emission. Here, we make the first detailed investigation of the radio emission from the G310.7-5.4 region, aiming to characterise the radio structure, polarisation measurements and the coinciding GeV emission. We used recent radio continuum observations at 943.5 MHz from the EMU and th","authors_text":"Andrew M. Hopkins, Brianna D. Ball, Christopher Burger-Scheidlin, Denis Leahy, Jennifer L. West, Jonathan Mackey, Mehrnoosh Tahani, Miroslav D. Filipovi\\'c, Robert Brose, Roland Kothes, Sanja Lazarevi\\'c, Tayyaba Zafar, Zachary J. 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