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arXiv 0907.2746astro-ph.HE
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在强场区检验广义相对论的两种方法

Two approaches to testing general relativity in the strong-field regime

Dimitrios Psaltis

摘要:

在电磁波谱中对致密物体的观测以及从它们中探测到引力波,可以通过两种截然不同的方法,在强场区对广义相对论进行定量检验。在第一种方法中,广义相对论场方程在基本水平上进行了修改,并通过与观测值的比较来限制潜在偏差的大小。在第二种方法中,致密物体的外部时空以唯象的方式参数化,各种参数通过观测测量,最后将结果与广义相对论预测进行比较。在这篇文章中,我讨论了这两种方法的现状,重点是从最近的大量调查中吸取的教训。

英文摘要:

Observations of compact objects in the electromagnetic spectrum and the detection of gravitational waves from them can lead to quantitative tests of the theory of general relativity in the strong-field regime following two very different approaches. In the first approach, the general relativistic field equations are modified at a fundamental level and the magnitudes of the potential deviations are constrained by comparison with observations. In the second approach, the exterior spacetimes of compact objects are parametrized in a phenomenological way, the various parameters are measured observationally, and the results are finally compared against the general relativistic predictions. In this article, I discuss the current status of both approaches, focusing on the lessons learned from a large number of recent investigations.

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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