Features of the Spatial Distribution of Galaxy Clusters

Abstract

A statistical analysis of anisotropic quasiperiodic features of the spatial distribution of galaxy clusters obtained on the basis of spectroscopic and photometric redshifts in the interval $0.1\le z\le 0.47$ has been carried out. Based on data from the SDSS~III catalog, we show that the preferential direction previously detected in the northern hemisphere (a narrow cone of directions: ${\alpha }_0=170^{\circ }\pm 5^{\circ },{\delta }_0=29^{\circ }\pm 5^{\circ }$), along which the one-dimensional distribution of projections of the Cartesian coordinates of clusters contains a significant ($\gtrsim (4-5)\sigma$) quasi-periodic component, can also be found using photometric redshifts, achieving a certain accuracy ($\Delta z\lesssim 0.013$). Based on data from the photometric DES$\times$unWISE catalog, we have analyzed the spatial distribution of clusters in the southern hemisphere, where a cone of close directions was also detected (${\alpha }_0=346^{\circ }\pm 5^{\circ },{\delta }_0=-29^{\circ }\pm 5^{\circ }$), which are approximately an extention of the directions revealed in the northern hemisphere. The power spectra of one-dimensional distributions along these directions contain significant ($\gtrsim (4-5)\sigma$) features in the same interval of wave numbers $0.04\lesssim k\lesssim 0.06h$~Mpc${}^{-1}$.

arXiv comment10 pages, 4 figure

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