{"paper":{"title":"CANGAROO-III search for TeV Gamma-rays from two clusters of galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Kawachi, A. Seki, C. Itoh, D. L. Swaby, D. Nishida, E. Yamazaki, F. Kajino, F. Tokanai, G. Thornton, G. V. Bicknell, H. Katagiri, H. Kubo, H. Muraishi, J. Kushida, K. Inoue, K. Nishijima, K. Tsuchiya, M. Mori, M. Ohishi, P. G. Edwards, R. Enomoto, R. Kiuchi, R. Mizuniwa, R. W. Clay, S. Gunji, S. Hara, S. Hayashi, S. Kabuki, S. Nakano, S. Watanabe, S. Yanagita, T. Hara, T. Hattori, T. Kifune, T. Mizukami, T. Naito, T. Nakamori, T. Suzuki, T. Tanimori, T. Yoshida, T. Yoshikoshi, V. Stamatescu, Y. Higashi, Y. Hirai, Y. Matsubara, Y. Mizumoto, Y. Muraki, Y. Sakamoto, Y. Yamada, Y. Yukawa","submitted_at":"2009-08-23T13:52:47Z","abstract_excerpt":"Because accretion and merger shocks in clusters of galaxies may accelerate particles to high energies, clusters are candidate sites for the origin of ultra-high-energy (UHE) cosmic-rays. A prediction was presented for gamma-ray emission from a cluster of galaxies at a detectable level with the current generation of imaging atmospheric Cherenkov telescopes. The gamma-ray emission was produced via inverse Compton upscattering of cosmic microwave background (CMB) photons by electron-positron pairs generated by collisions of UHE cosmic rays in the cluster. We observed two clusters of galaxies, Abe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.3301","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":""},"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"}