http://arxiv.org/abs/2211.13453
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.
D. Yamauchi, S. Ishimaru, T. Matsubara, et. al.
Mon, 28 Nov 22
58/93
Comments: 18 pages, 2 figures