Fractal Analysis of the UltraVISTA Galaxy Survey
| Autor: | Amanda R. Lopes, Sharon Teles, Marcelo B. Ribeiro |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Absolute magnitude Nuclear and High Energy Physics Cosmology and Nongalactic Astrophysics (astro-ph.CO) UltraVISTA survey Galaxy distribution FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics General Relativity and Quantum Cosmology (gr-qc) Fractal analysis Fractal dimension General Relativity and Quantum Cosmology Galaxy Redshift Cosmology lcsh:QC1-999 Fractal Fractals Luminosity distance lcsh:Physics Astrophysics - Cosmology and Nongalactic Astrophysics |
| Zdroj: | Physics Letters B, Vol 813, Iss, Pp 136034-(2021) Physics Letters B |
| DOI: | 10.48550/arxiv.2012.07164 |
| Popis: | This paper seeks to test if the large-scale galaxy distribution can be characterized as a fractal system. Tools appropriate for describing galaxy fractal structures with a single fractal dimension $D$ in relativistic settings are developed and applied to the UltraVISTA galaxy survey. A graph of volume-limited samples corresponding to the redshift limits in each redshift bins for absolute magnitude is presented. Fractal analysis using the standard $��$CDM cosmological model is applied to a reduced subsample in the range $0.1\le z \le 4$, and the entire sample within $0.1\le z\le 6$. Three relativistic distances are used, the luminosity distance $d_L$, redshift distance $d_z$ and galaxy area distance $d_G$, because for data at $z\gtrsim 0.3$ relativistic effects are such that for the same $z$ these distance definitions yield different values. The results show two consecutive and distinct redshift ranges in both the reduced and complete samples where the data behave as a single fractal galaxy structure. For the reduced subsample we found that the fractal dimension is $D=\left(1.58\pm0.20\right)$ for $z 9 pages, 11 figures, LaTeX. Accepted for publication in Physics Letters B |
| Databáze: | OpenAIRE |
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