TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR
- Autori: B. Bartoli; BERNARDINI, Paolo; 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; Y. Chen; P. Creti; S. W. Cui; B. Z. Dai; D'AMONE, ANTONIO; Danzengluobu; DE MITRI, Ivan; B. D'Ettorre Piazzoli; T. Di Girolamo; X. H. Ding; G. Di Sciascio; C. F. Feng; Zhaoyang Feng; Zhenyong Feng; Q. B. Gou; Y. Q. Guo; H. H. He; Haibing Hu; Hongbo Hu; Q. Huang; M. Iacovacci; R. Iuppa; H. Y. Jia; 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. Ma; X. H. Ma; MANCARELLA, Giovanni; S. M. Mari; MARSELLA, GIOVANNI; MARTELLO, Daniele; S. Mastroianni; P. Montini; C. C. Ning; PANAREO, Marco; B. Panico; PERRONE, Lorenzo; 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; B. Wang; H. Wang; C. Y. Wu; H. R. Wu; B. Xu; L. Xue; Q. Y. Yang; X. C. Yang; Z. G. Yao; A. F. Yuan; M. Zha; H. M. Zhang; Jilong Zhang; Jianli Zhang; L. Zhang; P. Zhang; X. Y. Zhang; Y. Zhang; J. Zhao; Zhaxiciren, Zhaxisangzhu; X. X. Zhou; F. R. Zhu; Q. Q. Zhu; G. Zizzi
- Anno di pubblicazione: 2013
- Tipologia: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/466618
Abstract
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.