TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR
TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR
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DOI：
10.1088/0004-637x/779/1/27
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发表时间：
2013-11
期刊：
影响因子：
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通讯作者：
B. Bartoli;P. Bernardini;X. Bi;I. Bolognino;P. Branchini;A. Budano;A. K. Calabrese Melcarne;P. C
中科院分区：
文献类型：
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作者：
B. Bartoli;P. Bernardini;X. Bi;I. Bolognino;P. Branchini;A. Budano;A. K. Calabrese Melcarne;P. C
羊八井地面天文台天体物理辐射（ARGO-YBJ）探测器是一个广泛的空气簇射阵列，从2007年11月到2013年1月用于监测北方γ射线天空，能量超过0.3 TeV。在本文中，我们使用过去五年记录的数据，介绍了在−10°至70°的十月波段的天空调查结果。随着综合灵敏度范围从0.24到1001蟹单位取决于decompensation，六个源已被检测到的统计意义大于五个标准差。据报告，几种过量物质也是潜在的γ射线发射源。每个源的特点进行了介绍和讨论。此外，95%的置信水平上限的通量从调查的天空区域显示。报道了ARGO-YBJ视场内663 GeV γ射线活动星系核的具体上限。估算了与河外背景光相互作用对γ射线吸收的影响。
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.