TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR

作者：B. Bartoli, P. Bernardini, X. J. Bi, I. Bolognino, P. Branchini, A. Budano, A. K. Calabrese Melcarne, P. Camarri, Z. Cao, R. Cardarelli, S. Catalanotti, S. Z. Chen, T. L. Chen, Yupeng Chen, P. Creti, S. W. Cui, B. Z. Dai, A. D׳Amone, Danzengluobu Danzengluobu, I. De Mitri, B. D′Ettorre Piazzoli, T. Di Girolamo, X. H. Ding, G. Di Sciascio, C. Feng, Zhaoyang Feng, Zhenyong Feng, Q. B. Gou, Yi-Qing Guo, H. H. He, Haibing Hu, Hongbo Hu, Q. Huang, M. Iacovacci, R. Iuppa, H. Y. Jia, Labaciren Labaciren, H. J. Li, J. Y. Li, X. X. Li, G. Liguori, C. Liu, C. Q. Liu, J. Liu, M. Y. Liu, H. Lu, L. L., Xinhua Ma, G. Mancarella, S. M. Mari, G. Marsella, D. Martello, S. Mastroianni, P. Montini, C. C. Ning, M. Panareo, B. Panico, Lorenzo Perrone, P. Pistilli, F. Ruggieri, P. Salvini, R. Santonico, S. N. Sbano, P. R. Shen, X. D. Sheng, F. Shi, A. Surdo, Y. H. Tan, P. Vallania, S. Vernetto, C. Vigorito, Bo Wang, H. Wang, C. Y. Wu, H. Wu, Benda Xu, L. Xue, Q. Y. Yang, X. C. Yang, Z. G. Yao, A. F. Yuan, M. Zha, Honglin Zhang, Jilong Zhang, Jianli Zhang, Li Zhang, P. Zhang, X. Y. Zhang, Yi Zhang, Jing Zhao, Zhaxiciren Zhaxiciren, Zhaxisangzhu, X. X. Zhou, F. R. Zhu, Q. Q. Zhu, and G. Zizzi · 发表于：The Astrophysical Journal · 年份：2013 · DOI：10.1088/0004-637x/779/1/27 · 被引用次数：86 · 研究领域：Astrophysics and Cosmic Phenomena、Dark Matter and Cosmic Phenomena、Radio Astronomy Observations and Technology

The Astrophysical Radiation with Ground-based Observatory at Yang Ba Jing (ARGO-YBJ) detector is an extensive air shower array that has been used to monitor the northern γ-ray sky at energies above 0.3 TeV from 2007 November to 2013 January. In this paper, we present the results of a sky survey in the declination band from −10° to 70°, using data recorded over the past five years. With an integrated sensitivity ranging from 0.24 to ∼1 Crab units depending on the declination, six sources have been detected with a statistical significance greater than five standard deviations. Several excesses are also reported as potential γ-ray emitters. The features of each source are presented and discussed. Additionally, 95% confidence level upper limits of the flux from the investigated sky region are shown. Specific upper limits for 663 GeV γ-ray active galactic nuclei inside the ARGO-YBJ field of view are reported. The effect of the absorption of γ-rays due to the interaction with extragalactic background light is estimated.