{"paper":{"title":"BlackTHUNDER: Evidence of three massive black holes in a z~5 galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alessandro Trinca, Andrew Fabian, Andrew J. Bunker, Boyuan Liu, Brant Robertson, Bruno Rodr\\'iguez Del Pino, Chris Willott, Daichi Kashino, Debora Sijacki, Dieter Lutz, Eckhard Sturm, Elena Bertola, Eleonora Parlanti, Francesco D'Eugenio, Frank Eisenhauer, Gareth C. Jones, Giacomo Venturi, Giovanni Cresci, Giovanni Mazzolari, Giulia Tozzi, Hannah \\\"Ubler, Ignas Juod\\v{z}balis, Jorryt Matthee, Kohei Inayoshi, Linda Tacconi, Lucy R. Ivey, Marta Volonteri, Michele Perna, Mirko Curti, Natascha M. F\\\"orster Schreiber, Nazanin Davari, Raffaella Schneider, Reinhard Genzel, Richard Davies, Roberto Maiolino, Rosa Valiante, Ruari Mackenzie, Saiyang Zhang, Sandro Tacchella, Santiago Arribas, Stefano Carniani, St\\'ephane Charlot, T. Taro Shimizu, Volker Bromm","submitted_at":"2025-09-25T20:54:39Z","abstract_excerpt":"We present observational evidence of three massive, accreting black holes (BHs) in the z=5.0167 galaxy J0148-4214 from JWST/NIRSpec-IFU spectroscopy. The BHs are revealed through broad H$\\alpha$ emission (FWHM=430-2920 km/s) without a forbidden-line counterpart in the bright [OIII] doublet. Channel maps of the asymmetric central H$\\alpha$ profile isolate two spatially distinct broad-line regions (BLRs), separated by $190\\pm40$ pc, while a third BLR is found in the galaxy outskirts with a projected separation of 1.7 kpc. We discuss whether this emission could be due to supernovae, shocks, winds"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.21575","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2509.21575/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}