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arXiv · 2102.09010

Observational evidence of fractality in the large-scale distribution of galaxies

T. Canavesi·T. E. Tapia
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Abstract

Using a sample of 133 991 galaxies distributed in the sky region $100^{\circ} <\alpha<270^{\circ}$ and $7^{\circ}<\delta<65^{\circ}$, extracted from the SDSS NASA/AMES Value Added Galaxy Catalog (AMES-VAGC), we estimate the fractal dimension using two different methods. First, using an algorithm to estimate the correlation dimension. The second method, in a novel approach, creates a graph from the data and estimates the graph dimension purely from connectivity information. In both methods we found a dimension $D\approx 2$ in scales below 20 Mpc, which agrees with previous works. This result shows the non-homogeneity of galaxies distribution at certain scales.

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T. Canavesi, T. E. Tapia. 2021-02-17. Observational evidence of fractality in the large-scale distribution of galaxies. https://arxiv.org/abs/2102.09010

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