论文标题
在大规模结构中使用相对论效应的各向异性应力的估计量
Estimator for the anisotropic stress using relativistic effects in Large-Scale Structure
论文作者
论文摘要
宇宙的大规模结构是测试宇宙学量表一般相对论一致性的丰富信息来源。我们简要描述了星系的观察到的分布如何受红移空间畸变的影响，也受重力透镜和其他相对论效应的影响。然后，我们展示了这种相对论效应之一，即引力红移，可用于建立独立的模型测试，该测试直接测量各向异性应力，即描述几何学的时空波动的两个引力电位之间的差异。
The large-scale structure of the Universe is a rich source of information to test the consistency of General Relativity on cosmological scales. We briefly describe how the observed distributions of galaxies is affected by redshift-space distortions, but also by gravitational lensing and other relativistic effects. Then, we show how one of this relativistic effects, the gravitational redshift, can be used to build a model independent test that directly measures the anisotropic stress, i.e. the difference between the two gravitational potentials that describe spacetime fluctuations of the geometry.
