{"paper":{"title":"Evidence for proton acceleration up to TeV energies based on VERITAS and Fermi-LAT observations of the Cas A SNR","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Archer, A. Falcone, A. Gent, A. Ghiotto, A. J. Chromey, A. Petrashyk, A. U. Abeysekara, A. Weinstein, A. Wilhelm, B. Zitzer, C. Giuri, D. A. Williams, D. Hanna, D. Kieda, E. Pueschel, E. Roache, F. Krennrich, G. H. Gillanders, G. H. Sembroski, G. Hughes, G. Maier, G. T. Richards, I. Sadeh, I. Sushch, J. H. Buckley, J. Holder, J. P. Finley, J. Quinn, K. Pfrang, K. Ragan, K. Shahinyan, L. Fortson, M. Buchovecky, M. J. Lang, M. K. Daniel, M. Kertzman, M. Krause, M. Nievas-Rosillo, M. Pohl, M. Santander, N. Kelley-Hoskins, N. Park, O. Gueta, O. Hervet, P. Kaaret, P. Kar, P. Moriarty, P. T. Reynolds, P. Wilcox, Q. Feng, R. A. Ong, R. Bird, R. Brose, R. Mukherjee, S. Das, S. Kumar, S. O'Brien, T. B. Humensky, T. Hassan, T. J Williamson, V. V. Dwarkadas, W. Benbow, W. Cui","submitted_at":"2020-03-30T16:47:10Z","abstract_excerpt":"We present a study of $\\gamma$-ray emission from the core-collapse supernova remnant Cas~A in the energy range from 0.1GeV to 10TeV. We used 65 hours of VERITAS data to cover 200 GeV - 10 TeV, and 10.8 years of \\textit{Fermi}-LAT data to cover 0.1-500 GeV. The spectral analysis of \\textit{Fermi}-LAT data shows a significant spectral curvature around $1.3 \\pm 0.4_{stat}$ GeV that is consistent with the expected spectrum from pion decay. Above this energy, the joint spectrum from \\textit{Fermi}-LAT and VERITAS deviates significantly from a simple power-law, and is best described by a power-law w"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2003.13615","kind":"arxiv","version":1},"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/2003.13615/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"}