Correlation Properties of Galaxies from the Main Galaxy Sample of the SDSS Survey

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dc.creatorTikhonov, Anton V.
dc.date2006-10-23
dc.date.accessioned2026-07-07T07:27:04Z
dc.date.available2026-07-07T07:27:04Z
dc.descriptionThe apparatus of correlation gamma function (Γ*(r)) is used to analyze volume-limited samples from the DR4 Main Galaxy Sample of the SDSS survey with the aim of determining the characteristic scales of galaxy clustering. Up to 20 h^{-1} Mpc (H_0 = 65 km s^{-1}Mpc^{-1}), the distribution of galaxies is described by a power-law density-distance dependence, Γ*(r) proportional to r^{-γ}, with an index γapproximately 1.0. A change in the state of clustering (a significant deviation from the power law) was found on a scale of 20-25 h^{-1}Mpc. The distribution of SDSS galaxies becomes homogeneous (γapproximately 0) from a scale of ~60 h^{-1}Mpc. The dependence of γon the luminosity of galaxies in volume-limited samples was obtained. The power-law index γincreases with decreasing absolute magnitude of sample galaxies M_abs. At M_abs ~ -21.4, which corresponds to the characteristic value Mr* of the SDSS luminosity function, this dependence exhibits a break followed by a more rapid increase in γ.
dc.description11 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/astro-ph/0610643
dc.identifierhttp://arxiv.org/abs/astro-ph/0610643
dc.identifierAstron.Lett. 32 (2006) 721-726
dc.identifierdoi:10.1134/S1063773706110016
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/117253
dc.subjectAstrophysics
dc.titleCorrelation Properties of Galaxies from the Main Galaxy Sample of the SDSS Survey
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