| Budget Amount *help |
¥42,250,000 (Direct Cost: ¥32,500,000、Indirect Cost: ¥9,750,000)
Fiscal Year 2017: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2016: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Fiscal Year 2015: ¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
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| Outline of Final Research Achievements |
The Tibet air shower array and underground water-Cherenkov muon detectors are located 4,300m in altitude, in Tibet, China. By means of the hybrid experiment, we aim at search for celestial sub-PeV gamma-ray sources with the highest sensitivity in thw world. In additoin, we will also study our universe by gamma rays and cosmic rays with energies between TeV and sub-PeV.
With the 100 m2 muon detectors, we set the most stringent upper limit on the gamma-ray flux from the Crab nebula above 0.14 PeV. Furthermore, the 4200 m2 large muon detectors started operation, accumulating data. In addition, some new knowledge on the cosmic-ray anisotropy and the interplanetary magnetic field strength is obtained, based on cosmic-ray data in the energy region from a few TeV and 1 PeV.
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