| Budget Amount *help |
¥23,920,000 (Direct Cost: ¥18,400,000、Indirect Cost: ¥5,520,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2019: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Using gamma-ray data over the entire sky, we have succeeded in providing the most accurate limits on weakly interacting massive particles (WIMPs), which have been considered to be one of the most promising candidates for dark matter. In particular, by cross-correlating gamma-ray data from the Fermi satellite in the GeV region with gravitational lensing data from the Dark Energy Survey, we have not only obtained limits on WIMPs but also succeeded for the first time in directly demonstrating the existence of high-energy gamma-ray sources embedded in dark matter structures.
We also succeeded in constructing semi-analytical models for these WIMPs in the small-scale structure of dark matter, which provides more accurate constraints than previous studies.
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