{"paper":{"title":"VERITAS Discovery of >200GeV Gamma-ray Emission from the Intermediate-frequency-peaked BL Lac Object W Comae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Cesarini, A. D. Falcone, A. Furniss, A. Imran, A. Konopelko, A. McCann, A. Weinstein, A. W. Smith, B. Zitzer, C. M. Hui, D. A. Williams, D. B. Kieda, D. Gall, D. Hanna, D. Horan, D. Pandel, D. Petry, D. Steele, E. Aliu, E. Hays, E. Roache, F. Krennrich, G. Finnegan, G. Gyuk, G. H. Gillanders, G. H. Sembroski, G. Maier, H. J. Rose, H. Krawczynski, J. A. Toner, J. E. Ward, J. Grube, J. H. Buckley, J. Holder, J. Niemiec, J. P. Finley, J. Quinn, J. S. Perkins, K. Lee, K. Ragan, L. Ciupik, L. C. Reyes, L. F. Fortson, M. Beilicke, M. Boettcher, M. J. Lang, M. K. Daniel, M. Kertzman, M. McCutcheon, M. Pohl, M. Schroedter, M. Wood, N. Karlsson, O. Celik, P. Cogan, P. Colin, P. Fortin, P. Kaaret, P. Moriarty, P. T. Reynolds, R. A. Ong, R. Guenette, R. J. White, R. Mukherjee, R. Wagner, S. A. Wissel, S. J. Fegan, S. LeBohec, S. M. Bradbury, S. P. Swordy, S. P. Wakely, T. B. Humensky, T. C. Weekes, T. Ergin, T. Nagai, V. Bugaev, VERITAS Collaboration: V. A. Acciari, V. V. Vassiliev, W. Benbow, W. Cui, Y. Butt, Y. C. K. Chow","submitted_at":"2008-08-06T17:49:17Z","abstract_excerpt":"We report the detection of very high-energy gamma-ray emission from the intermediate-frequency-peaked BL Lacertae object W Comae (z=0.102) by VERITAS. The source was observed between January and April 2008. A strong outburst of gamma-ray emission was measured in the middle of March, lasting for only four days. The energy spectrum measured during the two highest flare nights is fit by a power-law and is found to be very steep, with a differential photon spectral index of Gamma = 3.81 +- 0.35_stat +- 0.34_syst. The integral photon flux above 200GeV during those two nights corresponds to roughly "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0808.0889","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"}