| Co-Investigator(Kenkyū-buntansha) |
野尻 伸一 名古屋大学, 理学研究科, 教授 (00432229)
市來 淨與 名古屋大学, 理学研究科, 准教授 (10534480)
辻川 信二 東京理科大学, 理学部第二部物理学科, 教授 (30318802)
西澤 淳 名古屋大学, 高等研究院, 特任講師 (70402435)
松原 隆彦 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 教授 (00282715)
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| Budget Amount *help |
¥45,370,000 (Direct Cost: ¥34,900,000、Indirect Cost: ¥10,470,000)
Fiscal Year 2019: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2018: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2017: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2016: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2015: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
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| Outline of Final Research Achievements |
Observational Constraints on dark energy models were obtained using the latest astronomical observational data, mainly from Planck. Various theoretically motivated dark energy models were proposed, and parameter regions of the theory that satisfy current observations were obtained. We developed a cosmological perturbation theory in models with dark energy and dark matter interactions and found that such models slow down the formation of large scale structure of the universe. We examined the effect of density fluctuations of dark energy on the number density and size of voids formed in the large-scale structure of the universe, and showed that the Alcock-Pacynski test allows unbiased constraints on the energy density of dark energy and the equation of state.
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