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| Format: | Preprint |
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2025
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| Online Access: | https://arxiv.org/abs/2506.05847 |
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| _version_ | 1866915330866020352 |
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| author | Ryabinkov, Andrei I. Kaminker, Alexandr D. |
| author_facet | Ryabinkov, Andrei I. Kaminker, Alexandr D. |
| contents | 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 $0.1 \leq z \leq 0.47$ 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: $α_0=170^\circ \pm 5^\circ, \ δ_0= 29^\circ \pm 5^\circ$), along which the one-dimensional distribution of projections of the Cartesian coordinates of clusters contains a significant ($\gtrsim (4 - 5) σ$) quasi-periodic component, can also be found using photometric redshifts, achieving a certain accuracy ($Δz \lesssim 0.013$). 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 ($α_0=346^\circ \pm 5^\circ,\ δ_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) σ$) features in the same interval of wave numbers $0.04 \lesssim k \lesssim 0.06~h$~Mpc$^{-1}$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_05847 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Features of the Spatial Distribution of Galaxy Clusters Ryabinkov, Andrei I. Kaminker, Alexandr D. Cosmology and Nongalactic Astrophysics 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 $0.1 \leq z \leq 0.47$ 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: $α_0=170^\circ \pm 5^\circ, \ δ_0= 29^\circ \pm 5^\circ$), along which the one-dimensional distribution of projections of the Cartesian coordinates of clusters contains a significant ($\gtrsim (4 - 5) σ$) quasi-periodic component, can also be found using photometric redshifts, achieving a certain accuracy ($Δz \lesssim 0.013$). 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 ($α_0=346^\circ \pm 5^\circ,\ δ_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) σ$) features in the same interval of wave numbers $0.04 \lesssim k \lesssim 0.06~h$~Mpc$^{-1}$. |
| title | Features of the Spatial Distribution of Galaxy Clusters |
| topic | Cosmology and Nongalactic Astrophysics |
| url | https://arxiv.org/abs/2506.05847 |