Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity
We present a new statistical analysis of the large-scale stellar mass distribution in the Sloan Digital Sky Survey (data release 7). A set of volume-limited samples shows that the stellar mass of galaxies is concentrated in a range of galaxy luminosities that is very different from the range selecte...
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Wiley
2021-01-01
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| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2021/6680938 |
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| author | José Gaite |
| author_facet | José Gaite |
| author_sort | José Gaite |
| collection | DOAJ |
| description | We present a new statistical analysis of the large-scale stellar mass distribution in the Sloan Digital Sky Survey (data release 7). A set of volume-limited samples shows that the stellar mass of galaxies is concentrated in a range of galaxy luminosities that is very different from the range selected by the usual analysis of galaxy positions. Nevertheless, the two-point correlation function is a power-law with the usual exponent γ=1.71−1.82, which varies with luminosity. The mass concentration property allows us to make a meaningful analysis of the angular distribution of the full flux-limited sample. With this analysis, after suppressing the shot noise, we extend further the scaling range and thus obtain γ=1.83 and a clustering length r0=5.8−7.0h−1Mpc. Fractional statistical moments of the coarse-grained stellar mass density exhibit multifractal scaling. Our results support a multifractal model with a transition to homogeneity at about 10h−1Mpc. |
| format | Article |
| id | doaj-art-c2a7471cf7bb4702afddff805df4848a |
| institution | OA Journals |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-c2a7471cf7bb4702afddff805df4848a2025-08-20T02:18:59ZengWileyAdvances in Astronomy1687-79691687-79772021-01-01202110.1155/2021/66809386680938Scaling Laws in the Stellar Mass Distribution and the Transition to HomogeneityJosé Gaite0Physics Dept., ETSIAE, Univ. Politécnica de Madrid, E-28040 Madrid, SpainWe present a new statistical analysis of the large-scale stellar mass distribution in the Sloan Digital Sky Survey (data release 7). A set of volume-limited samples shows that the stellar mass of galaxies is concentrated in a range of galaxy luminosities that is very different from the range selected by the usual analysis of galaxy positions. Nevertheless, the two-point correlation function is a power-law with the usual exponent γ=1.71−1.82, which varies with luminosity. The mass concentration property allows us to make a meaningful analysis of the angular distribution of the full flux-limited sample. With this analysis, after suppressing the shot noise, we extend further the scaling range and thus obtain γ=1.83 and a clustering length r0=5.8−7.0h−1Mpc. Fractional statistical moments of the coarse-grained stellar mass density exhibit multifractal scaling. Our results support a multifractal model with a transition to homogeneity at about 10h−1Mpc.http://dx.doi.org/10.1155/2021/6680938 |
| spellingShingle | José Gaite Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity Advances in Astronomy |
| title | Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity |
| title_full | Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity |
| title_fullStr | Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity |
| title_full_unstemmed | Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity |
| title_short | Scaling Laws in the Stellar Mass Distribution and the Transition to Homogeneity |
| title_sort | scaling laws in the stellar mass distribution and the transition to homogeneity |
| url | http://dx.doi.org/10.1155/2021/6680938 |
| work_keys_str_mv | AT josegaite scalinglawsinthestellarmassdistributionandthetransitiontohomogeneity |