{"paper":{"title":"MAGIC discovery of VHE Emission from the FSRQ PKS 1222+21","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Berdyugin, A. Biland, A. Boller, A. Ca\\~nellas, A. Carosi, A. De Angelis, A. Diago Ortega, A. Dom\\`inguez, A. Herrero, A. La Barbera, A. Moralejo, A. Saggion, A. Sillanp\\\"a\\\"a, A. Stamerra, A. Treves, B. Huber, B. Steinke, C. Fruck, C. Schultz, D. Bastieri, D. Borla Tridon, D. Dominis Prester, D. Dorner, D. Elsaesser, D. Ferenc, D. Garrido, D. Hadasch, D. H\\\"afner, D. Hildebrand, D. H\\\"ohne-M\\\"onch, D. Hrupec, D. Lelas, D. Nieto, D. Paneque, Dr. Barbara De Lotto, Dr. Carlos Delgado Mendez, Dr. Daniel Mazin, Dr. Javier Rico, Dr. Kari Nilsson, Dr. Massimo Persic, Dr. Miguel-Angel Perez-Torres, Dr. P. G. Prada Moroni, Dr. Thomas Bretz, D. Sobczynska, D. Tescaro, D. Wood, E. Bernardini, E. Carmona, E. Colombo, E. de Cea del Pozo, E. Leonardo, E. Lindfors, E. Lorenz, E. Prandini, F. Dazzi, F. Pauss, F. Prada, F. Spanier, F. Tavecchio, F. Zandanel, G. Bonnoli, G. Giavitto, G. Maneva, H. Miyamoto, H. Vankov, I. Braun, I. Oya, I. Puljak, I. Reichardt, J. Aleksi\\'c, J. Barrio, J. Becerra Gonz\\'alez, J. Contreras, J. Cortina, J. Hose, J. Krause, J. Miranda, J. Paredes, J. Pochon, J. Sitarek, J. Storz, K. Berger, K. Mannheim, K. Satalecka, L. Antonelli, L. Cossio, L. Font, L. Maraschi, L. Peruzzo, L. Takalo, Marc Rib\\'o, M. Backes, M. Doert, M. Doro, M. Fonseca, M. Garczarczyk, M. L\\'opez, M. Makariev, M. Mariotti, M. Mart\\'inez, M. Meucci, M. Pasanen, M. Perez-Torres, M. Pilia, Mr. Javier Mold\\'on, Mr. Koji Saito, M. Salvati, M. Shayduk, M. Teshima, M. Thom, N. Godinovi\\'c, N. Mankuzhiyil, N. Strah, O. Blanch, O. Tibolla, P. Antoranz, P. Colin, P. Temnikov, P. Vogler, Q. Weitzel, R. Bock, R. Garc\\`ia L\\`opez, R. Mirzoyan, R. Orito, R. Paoletti, R. Reinthal, R. Wagner, R. Zanin (the MAGIC collaboration), S. Buson, S. Covino, S. Klepser, S. Lombardi, S. Pardo, S. Partini, S. R\\\"ugamer, S. Shore, S. Spiro, T. Jogler, T. Krahenbuhl, T. Saito, T. Schweizer, T. Suri\\'c, T. Terzi\\'c, V. Scalzotto, V. Scapin, V. Zabalza, W. Bednarek, W. Rhode, Y. Tanaka","submitted_at":"2011-01-24T20:51:14Z","abstract_excerpt":"Very High Energy (VHE) gamma-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C 21.35, z=0.432) was detected with the MAGIC Cherenkov telescopes during a short observation (~0.5 hr) performed on 2010 June 17. The MAGIC detection coincides with high energy MeV/GeV gamma-ray activity measured by the Large Area Telescope (LAT) on board the Fermi satellite. The VHE spectrum measured by MAGIC extends from about 70 GeV up to at least 400 GeV and can be well described by a power law dN/dE \\propto E^-Gamma with a photon index Gamma= 3.75+/-0.27stat +/-0.2syst. The averaged integra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.4645","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"}