High-energy universe by means of sub-PeV cosmic gamma rays
Project/Area Number |
15H02084
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Research Category |
Grant-in-Aid for Scientific Research (A)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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Research Institution | The University of Tokyo |
Principal Investigator |
TAKITA MASATO 東京大学, 宇宙線研究所, 教授 (20202161)
|
Project Period (FY) |
2015-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
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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)
|
Keywords | 空気シャワー / ミューオン / 宇宙線 / ガンマ線 / チベット / 水チェレンコフ / sub-PeV / 宇宙 / 太陽の影 / IMF磁場 / NKG関数 / 恒星時異方性 / 高エネルギー |
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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Report
(4 results)
Research Products
(56 results)
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[Presentation] ALPACE experiment2017
Author(s)
T. Sako for the ALPACA Collaboration
Organizer
The VII School on Cosmic Rays and Astrophysics, Escuela Politécnica Nacional, Quito, Ecuador, August 21-September 1, 2017
Related Report
Int'l Joint Research / Invited
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