Particle cosmology in the era of precision cosmology
| Project/Area Number |
19740145
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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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 Saga University, 工学系研究科, 准教授 (60432960)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,920,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥720,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥800,000 (Direct Cost: ¥800,000)
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| Keywords | 初期宇宙 / 初期揺らぎ / 非ガウス性 / インフレーション / 初期密度揺らぎ / カーバトン / 等曲率揺らぎ / カーバトンメカニズム / 暗黒物質 / 非ガウシアン性 / ダークエネルギー |
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| Research Abstract |
Current cosmological observations are so precise that they give us a lot of information and profound insight on the evolution of the Universe from the very early epoch to the present, as well as the nature of dark components such as dark matter and dark energy. In this research project, we have investigated various aspects of cosmological density fluctuations, in particular, non-Gaussianity of primordial fluctuations. We have studied various models of the early Universe, focusing on its observational signatures for non-Gaussianity, which would give many implications for understanding of the evolution of the Universe and particle physics models.
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Report
(6 results)
Research Products
(68 results)
