MAGIC Upper Limits for two Milagro-detected, Bright Fermi Sources in the Region of SNR G65.1+0.6
J. Aleksić, L. A. Antonelli, P. Antoranz, M. Backes, J. A. Barrio, D. Bastieri, J. Becerra González, W. Bednarek, A. Berdyugin, K. Berger, E. Bernardini, A. Bil… 展开作者
J. Aleksić, L. A. Antonelli, P. Antoranz, M. Backes, J. A. Barrio, D. Bastieri, J. Becerra González, W. Bednarek, A. Berdyugin, K. Berger, E. Bernardini, A. Biland, O. Blanch, R. K. Bock, A. Boller, G. Bonnoli, P. Bordas, D. Borla Tridon, V. Bosch-Ramon, D. Bose, I. Braun, T. Bretz, M. Camara, E. Carmona, A. Carosi, P. Colin, J. L. Contreras, J. Cortina, S. Covino, F. Dazzi, A. De Angelis, E. De Cea del Pozo, B. De Lotto, M. De Maria, F. De Sabata, C. DelgadoMendez, A. Diago Ortega, M. Doert, A. Domínguez, D. Dominis Prester, D. Dorner, M. Doro, D. Elsaesser, M. Errando, D. Ferenc, M. V. Fonseca, L. Font, R. J. García López, M. Garczarczyk, M. Gaug, G. Giavitto, N. Godinović, D. Hadasch, A. Herrero, D. Hildebrand, D. Höhne-Mönch, J. Hose, D. Hrupec, T. Jogler, S. Klepser, T. Krähenbühl, D. Kranich, J. Krause, A. La Barbera, E. Leonardo, E. Lindfors, S. Lombardi, F. Longo, M. López, E. Lorenz, P. Majumdar, G. Maneva, N. Mankuzhiyil, K. Mannheim, L. Maraschi, M. Mariotti, M. Martínez, D. Mazin, M. Meucci, J. M. Miranda, R. Mirzoyan, H. Miyamoto, J. Moldón, A. Moralejo, D. Nieto, K. Nilsson, R. Orito, I. Oya, R. Paoletti, J. M. Paredes, S. Partini, M. Pasanen, F. Pauss, R. G. Pegna, M. A. Perez-Torres, M. Persic, L. Peruzzo, J. Pochon, F. Prada, P. G. Prada Moroni, E. Prandini, N. Puchades, I. Puljak, I. Reichardt, R. Reinthal, W. Rhode, M. Ribó, J. Rico, M. Rissi, S. Rügamer, A. Saggion, K. Saito, T. Y. Saito, M. Salvati, M. Sánchez-Conde, K. Satalecka, V. Scalzotto, V. Scapin, C. Schultz, T. Schweizer, M. Shayduk, S. N. Shore, A. Sierpowska-Bartosik, A. Sillanpää, J. Sitarek, D. Sobczynska, F. Spanier, S. Spiro, A. Stamerra, B. Steinke, J. Storz, N. Strah, J. C. Struebig, T. Suric, L. Takalo, F. Tavecchio, P. Temnikov, T. Terzić, D. Tescaro, M. Teshima, D. F. Torres, H. Vankov, R. M. Wagner, Q. Weitzel, V. Zabalza, F. Zandanel, R. Zanin
We report on the observation of the region around supernova remnant G65.1+0.6 with the stand-alone MAGIC-I telescope. This region hosts the two bright GeV gamma-ray sources 1FGL J1954.3+2836 and 1FGL J1958.6+2845. They are identified as GeV pulsars and both have a possible counterpart detected at about 35 TeV by the Milagro observatory. MAGIC collected 25.5 hours of good quality data, and found no significant emission in the range around 1 TeV. We therefore report differential flux upper limits, assuming the emission to be point-like (<0.1 deg) or within a radius of 0.3 deg. In the point-like scenario, the flux limits around 1 TeV are at the level of 3 % and 2 % of the Crab Nebula flux, for the two sources respectively. This implies that the Milagro emission is either extended over a much larger area than our point spread function, or it must be peaked at energies beyond 1 TeV, resulting in a photon index harder than 2.2 in the TeV band.
Constraining Cosmic-Ray Acceleration and Escape in Middle-Aged Supernova Remnants with GeV-TeV Gamma-Ray Observations
Southwest Jiaotong University(西南交通大学);Institute of High Energy Physics, Chinese Academy of Sciences(中国科学院高能物理研究所);Shanghai Astronomical Observatory, Chinese Academy of Sciences(中国科学院上海天文台)
Max-Planck-Institut für Kernphysik(马克斯·普朗克核物理研究所);Friedrich-Alexander-Universität Erlangen-Nürnberg(埃尔兰根-纽伦堡弗里德里希·阿列克山大大学);Stockholm University(斯德哥尔摩大学);The Oskar Klein Centre for Cosmoparticle Physics(奥斯卡·克莱因宇宙粒子物理中心);Cherenkov Telescope Array Observatory, Science Data Management Centre (SDMC)(切伦科夫望远镜阵列观测站科学数据管理中心)