2013 Fiscal Year Final Research Report
Theoretical Study of gravutational waves from strong, fast-moving object and eraly universe for gravitaional astronomy
| Project/Area Number |
23540282
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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 | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | 重力波 / 宇宙の大規模構造 / 運動方程式 |
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| Research Abstract |
Gravitational wave is the last method to observe the universe,and unique method to study black hole phenomena and the begging of the universe. However its signal is extremely weak and is hidden by various noises. Thus it is essential to get rid of noises for the detection of gravitaional waves. Min source of teh noise is the effect of large scale structure of the universe on the propagatioon of the gravitaional waves.
In this study I have developed a new method to describe large scale structure which is valid in nonlinera region and studied the effect of large scale structure on the distance redshift relation. We habe obtained the dispersion of the magnitude-redshift and showed the corret interpretation is not obtained without taking into account of teh dispersion.
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