{"paper":{"title":"Discovery of extreme particle acceleration in the microquasar Cygnus X-3","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"A. Antonelli, A. Argan, A. Bulgarelli, A. Ferrari, A. Giuliani, A. Mauri, A. Morselli, A. Pellizzoni, A. Rappoldi, A. Rubini, A. Trois, A.W. Chen, A. Zambra, C. Labanti, C. Pittori, D. Zanello, E. Costa, E. Del Monte, E. Mattaini, E. Morelli, E. Rossi, E. Scalise, E. Striani, E. Vallazza, F. D'Ammando, F. Fuschino, F. Gianotti, F. Lazzarotto, F. Longo, F. Perotti, F. Verrecchia, G. Barbiellini, G. De Paris, G. Di Cocco, G. Di Persio, G. Piano, G. Pooley, G. Pucella, I. Donnarumma, I. Lapshov, K.I.I. Koljonen, L. Pacciani, L. Salotti, M. Feroci, M. Galli, M. Marisaldi, M. Mastropietro, M. McCollough, M. Pilia, M. Prest, M. Rapisarda, M. Tavani, M. Trifoglio, N.A. Nizhelskij, P. Caraveo, P. Giommi, P. Lipari, P. Picozza, P. Santolamazza, P. Soffitta, P.W. Cattaneo, S. Colafrancesco, S. Mereghetti, S. Sabatini, S. Trushkin, S. Vercellone, T. Contessi, V. Cocco, V. Vittorini, Y. Evangelista","submitted_at":"2009-10-28T11:13:48Z","abstract_excerpt":"The study of relativistic particle acceleration is a major topic of high-energy astrophysics. It is well known that massive black holes in active galaxies can release a substantial fraction of their accretion power into energetic particles, producing gamma-rays and relativistic jets. Galactic microquasars (hosting a compact star of 1-10 solar masses which accretes matter from a binary companion) also produce relativistic jets. However, no direct evidence of particle acceleration above GeV energies has ever been obtained in microquasar ejections, leaving open the issue of the occurrence and tim"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0910.5344","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":""},"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"}