منابع مشابه
Galaxy Clustering and Dark Energy
We study the evolution of galaxy clustering in various cosmological models with quintessence. We investigate how the analytical predictions vary with change of dark energy equation of state wX . Comparing these predictions against available data we test the possibility of constraining the equation of state with future galaxy surveys and to what extent the problems of galaxy bias can be modelled...
متن کاملEvolution of Faint Galaxy Clustering
The UH8K wide field camera of the CFHT was used to image 0.68 deg2 of sky. From these images, ∼20,000 galaxies were detected to completeness magnitudes V < 23.5 and I < 22.5. The angular correlation function of these galaxies is well represented by the parameterization ω(θ) = AW θ−δ . The slope δ ' −0.8 shows no significant variation over the range of magnitude. The amplitude AW decreases with ...
متن کاملThe evolution of galaxy clustering
This paper investigates whether nonlinear gravitational instability can account for the clustering of galaxies on large and small scales, and for the evolution of clustering with epoch. The local clustering spectrum is accurately established, and bias is not a great source of uncertainty: the real-space power spectra of optical and IRAS galaxies show only a weak scale-dependent relative bias of...
متن کاملModeling Galaxy Clustering by Color
We extend the mass-halo formalism for analytically generating power spectra to allow for the different clustering behavior observed in galaxy sub-populations. Although applicable to other separations, we concentrate our methods on a simple separation by rest-frame color into “red” and “blue” sub-populations through modifications to the 〈N〉(M) relations and halo distribution functions for each o...
متن کاملAnalytic Approximations to Galaxy Clustering
We discuss some recent progress in constructing analytic approximations to the galaxy clustering. We show that successful models can be constructed for the clustering of both dark matter and dark matter haloes. Our understanding of galaxy clustering and galaxy biasing can be greatly enhanced by these models.
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ژورنال
عنوان ژورنال: Nature
سال: 1979
ISSN: 0028-0836,1476-4687
DOI: 10.1038/277266a0