Construction of theoretical models of dark energy and their observational constraints

暗能量理论模型的构建及其观测约束

• 批准号: 20740148
• 负责人: TSUJIKAWA Shinji
• 金额: $ 2.75万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20740148/
• 关键词: 暗黒エネルギー; 一般相対論; インフレーション; 超弦理論; 宇宙背景輻射; 密度揺らぎ; 宇宙の大規模構造; 暗黒物質; 粒子生成

Observations such as supernova type Ia suggest that about 70% of the energy density of the Universe today consists of dark energy responsible for cosmic acceleration. The development of both theoretical and observational sides is required to approach the origin of dark energy. From the theoretical side I discriminated between many models of dark energy by studying the background cosmological dynamics, the evolution of density perturbations, and local gravity constraints. Moreover we placed constraints on theoretical models of dark energy from a number of independent observational data.

对Ia型超新星的观测表明，今天宇宙中大约70%的能量密度是由暗能量组成的，暗能量是宇宙加速的原因。理论和观测方面的发展需要接近暗能量的起源。从理论上讲，我通过研究背景宇宙动力学、密度扰动的演化和局部引力约束来区分许多暗能量模型。此外，我们根据一些独立的观测数据对暗能量的理论模型进行了限制。

项目成果

Conditions for the cosmological viability of the most general scalar-tensor theories and their applications to extended Galileon models

最一般标量张量理论的宇宙学可行性条件及其在扩展伽利略模型中的应用

• 发表时间: 2012
• 期刊: JCAP
• 作者: A. De Felice;S. Tsujikawa
• 通讯作者: S. Tsujikawa

Probing signatures of modified gravity models of dark energy

探测暗能量修正引力模型的特征

• 发表时间: 2010
• 作者: M.Koma;Y.Koma;Shinji Tsujikawa;S. Tsujikawa;Shinji Tsujikawa;S.Tsujikawa;S. Tsujikawa;Shinji Tsujikawa;S. Tsujikawa
• 通讯作者: S. Tsujikawa

Dark Energy: Theory and Observations

• 发表时间: 2018-05
• 作者: L. Amendola;S. Tsujikawa

ダークエネルギーの理論模型と観測からの選別

从理论模型和观察中对暗能量进行分类

• 发表时间: 2012
• 作者: 駒美保;駒佳明;S.Tsujikawa
• 通讯作者: S.Tsujikawa

Inflation and dark energy

通货膨胀和暗能量

• 发表时间: 2010
• 作者: M.Koma;Y.Koma;Shinji Tsujikawa;S. Tsujikawa;Shinji Tsujikawa
• 通讯作者: Shinji Tsujikawa