Possible Measurement of Quintessence and Density Parameter Using Strong Gravitational Lensing Events
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概要
- 論文の詳細を見る
We propose a possible method of measurement of the time variability of the vacuum energy using strong gravitational lensing events. As an example we take an Einstein cross lens HST 14176+5226 and demonstrate that the measurement of the velocity dispersion with an accuracy of ± 5 km/sec may allow for the determination of the time dependence of the vacuum energy as well as the density parameter with an accuracy of order 0.1 if the lens model is fixed.
- 理論物理学刊行会の論文
- 2001-05-25
著者
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FUTAMASE Toshifumi
Astronomical Institute, Tohoku University
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ニ間瀬 敏史
東北大理
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Futamase Toshifumi
Astronomical Institute Tohoku University
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Futamase Toshifumi
Astronomical Institute Graduate School Of Science Tohoku University
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YOSHIDA Shijun
Department of Physics, Hirosaki University
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Yoshida S
Astronomical Institute Tohoku University
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YOSHIDA Shijun
Astronomical Institute, Tohoku University
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FUTAMASE Toshifumi
Department of aeronautical Engineering, Faculty of Engineering Kyoto University
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