论文标题
大规模结构和重力测试中的偏度一致性关系
Skewness consistency relation in large-scale structure and test of gravity theory
论文作者
论文摘要
我们研究了星系数密度波动的偏度，作为测试重力理论的可能探针。我们发现，偏度参数的特定线性组合对应于密度对比的二阶核的系数，该系数可以视为一致性关系，并用作一般相对论和修饰的重力理论的测试。我们还将偏度参数的分析从真实空间扩展到红移空间，并得出红移空间偏斜的一致性关系。
We investigate the skewness of galaxy number density fluctuations as a possible probe to test gravity theories. We find that the specific linear combination of the skewness parameters corresponds to the coefficients of the second-order kernels of the density contrast, which can be regarded as the consistency relation and used as a test of general relativity and modified gravity theories. We also extend the analysis of the skewness parameters from real space to redshift space and derive the redshift-space skewness consistency relation.
