Non-linear dynamics in Extended Gravity Theories
| Project/Area Number |
25400277
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Osaka Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
鳥居 隆 大阪工業大学, ロボティクス&デザイン工学部, 教授 (00360199)
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| Project Period (FY) |
2013-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Keywords | 一般相対性理論 / 重力理論 / ブラックホール / 重力波 / 時空特異点 / 高次元時空 / 修正重力理論 / シミュレーション / 数値解析 / 国際情報交換（ドイツ，アメリカ） / ダイナミクス / 摂動解析 / 数値シミュレーション / ワームホール |
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| Outline of Final Research Achievements |
Direct detection of gravitational waves is realized and it is becoming possible to verify the theory of general relativity using a strong gravity field such as black hole (BH). In this research, we focused on the Gauss-Bonnet gravity theory, which is one of the most influential modified gravity theories, and clarified a part of its dynamics. We showed in multiple models that the occurrence of space-time singularities can be avoided by higher-order curvature terms and that the tendency is prominent as the dimension becomes higher.
We also discussed how a growth model of BHs is distinguished from others in gravitational wave observation. We estimated the number of BH merger events observed by the ground-based gravitational wave interferometers. Furthermore, we proposed a new method to extract ring-down gravitational wave emitted by a BH from actual data.
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Report
(6 results)
Research Products
(38 results)
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[Presentation] Wormhole Dynamics2014
Author(s)
Hisa-aki Shinkai, Takashi Torii
Organizer
International Conference on Mathematical Modeling in Physical Sciences
Place of Presentation
Madrid, Spain
Year and Date
2014-08-28 – 2014-08-31
Related Report
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