Exploring the early Universe with cosmological observations and particle physics
| Project/Area Number |
23740195
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Saga University |
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Principal Investigator |
TAKAHASHI Tomo 佐賀大学, 工学(系)研究科(研究院), 准教授 (60432960)
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 密度揺らぎ / 初期宇宙 / インフレーション / 重力波 / 初期密度揺らぎ / 宇宙密度揺らぎ / 非ガウス性 / 等曲率揺らぎ / ２１cm線 |
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| Outline of Final Research Achievements |
Recent cosmological observations such as Planck satellite have revealed various aspects of the Universe. In this research project, focusing on primordial density fluctuations, we have studied its generation mechanism and the evolution of the early Universe. By using the data from current cosmological observations such as WMAP and Planck, we have investigated various generation mechanisms of primordial fluctuations and the thermal history of the Universe. By taking account of models of particle physics, we have discussed possible scenarios of the evolution of the early Universe. The prospects of future observations of how such scenarios can be probed have also been discussed.
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Report
(5 results)
Research Products
(25 results)
