{"paper":{"title":"Detection of very-high energy \\gamma-ray emission from NGC 1275 by the MAGIC telescopes","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"1), 10), (10) University of {\\L}\\'od\\'z, (11) Tuorla Observatory, (12) Deutsches Elektronen-Synchrotron (DESY), (13) ETH Zurich, (14) Universit\\\"at W\\\"urzburg, (15) Universitat de Barcelona (ICC/IEEC), (16) Universit\\`a di Udine, 17), (17) Institut de Ci\\`encies de l'Espai (IEEC-CSIC), (18) Inst. de Astrof\\'isica de Andaluc\\'ia (CSIC), (19) Croatian MAGIC Consortium, (20) Universitat Aut\\`onoma de Barcelona, (21) Inst. for Nucl. Research, 22), (22) INAF/Osservatorio Astronomico, (23) Universit\\`a dell'Insubria, (24) Universit\\`a di Pisa, (25) ICREA, 26), (26) now at: Ecole polytechnique f\\'ed\\'erale de Lausanne (EPFL), 27), (27) supported by INFN Padova, 28), (28) now at: Centro de Investigaciones Energ\\'eticas, 29), (29) now at: Finnish Centre for Astronomy with ESO (FINCA), (2) Universidad Complutense, (30) HITS, (31) UC Santa Barbara, (3) INAF National Institute for Astrophysics, (4) Universit\\`a di Siena, (5) Technische Universit\\\"at Dortmund, 6), (6) Max-Planck-Institut f\\\"ur Physik, (7) Universit\\`a di Padova, (8) Inst. de Astrof\\'isica de Canarias, 9), (9) Depto. de Astrof\\'isica, A. Berdyugin (11), A. Biland (13), A. Boller (13), A. Ca\\~nellas (15), A. Carosi (3), A. De Angelis (16), A. Diago Ortega (8, A. Dom\\'inguez (18), A. Herrero (8, A. La Barbera (3), A. L\\'opez-Oramas (1), A. Moralejo (1), A. Niedzwiecki (10), A. Pinzke (31) ((1) IFAE, A. Saggion (7), A. Sillanp\\\"a\\\"a (11), A. Stamerra (4), A. Treves (23), Barcelona, B. De Lotto (16), Bellaterra, B. Steinke (6), Bulgaria, CA, Campus UAB, C. Delgado Mendez (8, C. Fruck (6), Como, C. Pfrommer (30), Croatia, C. Schultz (7), D. Bastieri (7), D. Borla Tridon (6), D. Dominis Prester (19), D. Dorner (13), D. Eisenacher (14), D. Elsaesser (14), D. Ferenc (19), D. F. Torres (25, D. Garrido (20), D. Hadasch (17), D. H\\\"afner (6), D. Hildebrand (13), D. H\\\"ohne-M\\\"onch (14), D. Hrupec (19), D. Lelas (19), D. Mazin (1, D. Nieto (2), Dortmund, D. Paneque (6), D. Sobczynska (10), D. Tescaro (24), E. A. Alvarez (2), E. Bernardini (12), E. Carmona (6, E. Colombo (8), E. de Cea del Pozo (17), Edifici Cn., E. Leonardo (4), E. Lindfors (11), E. Lorenz (13, E. Prandini (7), F. Dazzi (16, Finland, F. Prada (18), F. Spanier (14), F. Tavecchio (3), F. Zandanel (18), G. Bonnoli (3), G. De Caneva (12), Germany, G. Giavitto (1), G. Maneva (21), Granada, Heidelberg, H. Kellermann (6), H. Takami (6), H. Vankov (21), I. Braun (13), INFN, INFN Pisa, INFN Trieste, I. Puerto Gimenez (8), I. Puljak (19), I. Reichardt (1), I. Snidaric (19), Italy, J. A. Barrio (2), J. Becerra Gonz\\'alez (8, J. Cortina (1), J. Hose (6), J. Krause (6), J. Kushida (6), J. L. Contreras (2), J. M. Miranda (4), J. Mold\\'on (15), J. M. Paredes (15), J. Pochon (8), J. Rico (25, J. Sitarek (1, J. Storz (14), K. Berger (8, K. Mannheim (14), K. Nilsson (11, K. Saito (6), K. Satalecka (2), L. A. Antonelli (3), La Laguna, Lausanne, L. Cossio (16), L. Font (20), L. Maraschi (3), Lodz, L. Peruzzo (7), L. Takalo (11), Madrid, MAGIC Collaboration: J. Aleksi\\'c (1), M. A. Perez-Torres (1), M. Asensio (2), M. Backes (5), M. Doert (5), M. Doro (20), Medioambientales y Tecnol\\'ogicas (CIEMAT), M. Garczarczyk (8), M. L\\'opez (2), M. Makariev (21), M. Mariotti (7), M. Mart\\'inez (1), M. Meucci (4), M. Persic (16, M. Pilia (23), M. Rib\\'o (15), M. Salvati (3), M. Shayduk (26), M. Teshima (6), M. Uellenbeck (5), M\\\"unchen, M. V. Fonseca (2), N. Godinovi\\'c (19), N. Lewandowska (14), N. Mankuzhiyil (16), N. Nowak (6), N. Strah (5), Nucl. Energy, O. Blanch (1), O. Tibolla (14), Padova, P. Antoranz (4), P. Colin (6), P. G. Prada Moroni (24), Piikki\\\"o, Pisa, P. Munar-Adrover (15), Poland, P. Temnikov (21), P. Vogler (13), Q. Weitzel (13), R. J. Garc\\'ia L\\'opez (8, R. K. Bock (6), R. L\\'opez-Coto (1), R. Mirzoyan (6), R. M. Wagner (6), Rome, R. Orito (6), R. Paoletti (4), R. Reinthal (11), Rudjer Boskovic Institute, R. Zanin (15) (The MAGIC Collaboration), Santa Barbara, S. Covino (3), Siena, S. Klepser (1), S. Lombardi (7), S. N. Shore (24), Sofia, S. Paiano (7), Spain, S. Pardo (2), S. Partini (4), S. R. Gozzini (12), S. R\\\"ugamer (14), S. Spiro (3), S. Sun (6), Switzerland, T. Bretz (14, Tenerife, T. Jogler (6), T. Kr\\\"ahenb\\\"uhl (13), Trieste, T. Schweizer (6), T. Suri\\'c (19), T. Terzi\\'c (19), T. Y. Saito (6), U. Barres de Almeida (6), Udine, Universidad de La Laguna, University of Rijeka, University of Split, University of Turku, USA), V. Scalzotto (7), V. Scapin (2), V. Stamatescu (1), V. Zabalza (15), W. Bednarek (10), W. Rhode (5), W\\\"urzburg, Zagreb, Zeuthen, Zurich","submitted_at":"2011-12-16T18:43:06Z","abstract_excerpt":"We report on the detection of very-high energy (VHE, E>100 GeV) gamma-ray emission from NGC 1275, the central radio galaxy of the Perseus cluster of galaxies. The source has been detected by the MAGIC telescopes with a statistical significance of 6.6 sigma above 100 GeV in 46 hr of stereo observations carried out between August 2010 and February 2011. The measured differential energy spectrum between 70 GeV and 500 GeV can be described by a power law with a steep spectral index of \\Gamma=-4.1+/-0.7stat+/-0.3syst, and the average flux above 100 GeV is F_{gamma}=(1.3+/-0.2stat+/-0.3syst) x 10^-1"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1112.3917","kind":"arxiv","version":4},"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"}