TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR
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 gamma -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...
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| Veröffentlicht in: | The Astrophysical journal 2013-12, Vol.779 (1), p.1-10 |
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| container_title | The Astrophysical journal |
| container_volume | 779 |
| creator | Bartoli, B Bernardini, P Bi, X J BOLOGNINO, I Branchini, P BUDANO, A MELCARNE, A K Calabrese Camarri, P Cao, Z Cardarelli, R |
| description | 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 gamma -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[degrees] to 70[degrees], 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 gamma -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 gamma -ray active galactic nuclei inside the ARGO-YBJ field of view are reported. The effect of the absorption of gamma -rays due to the interaction with extragalactic background light is estimated. |
| doi_str_mv | 10.1088/0004-637X/779/1/27 |
| format | Article |
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| subjects | ABSORPTION Arrays ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY Confidence intervals Declination Detectors EXTENSIVE AIR SHOWERS Flux GALAXY NUCLEI GAMMA RADIATION INTERACTIONS Monitors SENSITIVITY Sky Standard deviation TEV RANGE VISIBLE RADIATION |
| title | TeV GAMMA-RAY SURVEY OF THE NORTHERN SKY USING THE ARGO-YBJ DETECTOR |
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