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arXiv 0801.0068astro-phgr-qc
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作为哥白尼原理检验的宇宙学红移的时间漂移

Time drift of cosmological redshifts as a test of the Copernican principle

Jean-Philippe Uzan, Chris Clarkson, George F. R. Ellis

摘要:

本文给出了一般球对称时空中宇宙学红移的时间漂移。我们证明,它的观测将使我们能够测试哥白尼原理,从而确定我们的宇宙是否是径向不均匀的,这是我们理解暗能量的一个重要问题。特别是,当与距离数据相结合时,这种额外的可观察性允许我们完全重建时空的几何形状,描述我们周围的球对称欠密区域,纯粹从背景观测。

英文摘要:

We present the time drift of the cosmological redshift in a general spherically symmetric spacetime. We demonstrate that its observation would allow us to test the Copernican principle and so determine if our universe is radially inhomogeneous, an important issue in our understanding of dark energy. In particular, when combined with distance data, this extra observable allows one to fully reconstruct the geometry of a spacetime describing a spherically symmetric under-dense region around us, purely from background observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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