Consistency relations for large-scale structures: Applications for the integrated Sachs-Wolfe effect and the kinematic Sunyaev-Zeldovich effect

被引:6
作者
Rizzo, Luca Alberto [1 ]
Mota, David F. [2 ]
Valageas, Patrick [1 ]
机构
[1] CEA, Inst Phys Theor, IPhT, F-91191 Gif Sur Yvette, France
[2] Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway
关键词
large-scale structure of Universe; PLANETARY-NEBULAE; CARBON ABUNDANCES; UNIVERSE; SYMMETRIES; GALAXIES; CLUSTERS;
D O I
10.1051/0004-6361/201730441
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Consistency relations of large-scale structures provide exact nonperturbative results for cross-correlations of cosmic fields in the squeezed limit. They only depend on the equivalence principle and the assumption of Gaussian initial conditions, and remain nonzero at equal times for cross-correlations of density fields with velocity or momentum fields, or with the time derivative of density fields. We show how to apply these relations to observational probes that involve the integrated Sachs-Wolfe effect or the kinematic Sunyaev-Zeldovich effect. In the squeezed limit, this allows us to express the three-point cross-correlations, or bispectra, of two galaxy or matter density fields, or weak lensing convergence fields, with the secondary cosmic microwave background distortion in terms of products of a linear and a nonlinear power spectrum. In particular, we find that cross-correlations with the integrated Sachs-Wolfe effect show a specific angular dependence. These results could be used to test the equivalence principle and the primordial Gaussianity, or to check the modeling of large-scale structures.
引用
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页数:10
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