2011 Fiscal Year Final Research Report
Testing general relativity at cosmological distances
| Project/Area Number |
20540280
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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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 | Nihon University |
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Principal Investigator |
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| Project Period (FY) |
2008 – 2011
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| Keywords | ダークエネルギー / 重力理論 |
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| Research Abstract |
We derive analytically the equation of state of slow-roll dark energy whose functional form applies to a wide class of dark energy models. We also propose two consistency tests of the cosmological constant and the general relativistic Friedmann universe. When applied to the current observational data, we find that the current cosmological data are consistent with the cosmological constant and general relativity. Future cosmological observations such as weak lensing survey and supernovae would improve the constraints.
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Research Products
(30 results)
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[Journal Article] Search for a Stochastic Background of 100-MHz Gravitational Waves with Laser Interferometers2008
Author(s)
Tomotada Akutsu, Seiji Kawamura, Atsushi Nishizawa, Koji Arai, Kazuhiro Yamamoto, Daisuke Tatsumi, Shigeo Nagano, Erina Nishida, Takeshi Chiba, Ryuichi Takahashi, Naoshi Sugiyama, Mitsuhiro Fukushima, Toshitaka Yamazaki, Masa-Katsu Fujimoto
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Journal Title
Physical Review Letters
Volume: 101
Pages: 101101, 4
Peer Reviewed
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