The large-scale structure (LSS) of the Universe, as traced for example by the distribution of galaxies, is the focus of several ongoing and upcoming observational campaigns. Gravitation, galaxies: haloes, galaxies: statistics, cosmological parameters, large-scale structure of Universe INTRODUCTION We generalize the scheme to cross-correlation functions. We also discuss contours of the 2D correlation function and clustering ‘wedges’. We combine the CLPT predictions of real-space clustering and velocity statistics in the Gaussian streaming model of Reid & White to obtain predictions for the monopole and quadrupole correlation functions accurate to 2 and 4 per cent, respectively, down to <25 h −1 Mpc for haloes hosting the massive galaxies observed by SDSS-III BOSS. Our predictions outperform standard perturbation theory calculations in many cases when compared to statistics measured in N-body simulations. In this paper, we compute the first and second moments of the pairwise velocity distribution by extending the convolution Lagrangian perturbation theory (CLPT) formalism of Carlson et al. An essential ingredient is an accurate description of the pairwise velocities of biased tracers of the matter field. Hayes, Matthew Schaerer, Daniel Oestlin, Goeran Mas-Hesse, J.Understanding the formation and evolution of large-scale structure is a central problem in cosmology and enables precise tests of General Relativity on cosmological scales and constraints on dark energy.
International Nuclear Information System (INIS) ON THE REDSHIFT EVOLUTION OF THE Lyα ESCAPE FRACTION AND THE DUST CONTENT OF GALAXIES Keck Foundation.Ī SUCCESSFUL BROADBAND SURVEY FOR GIANT Ly nebula, which we suggest may be the limb of a dusty shell, related to the large-scale H I absorbers often associated with high-z radio galaxies. The Observatory was made possible by the generous financial support of the W. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. Data presented herein were obtained at the W. When combined with the results of other surveys, limited at higher luminosities, our results suggest evidence for the suppression of star formation in low-mass halos, as predicted in popular models of galaxy formation. Our cumulative z~=5 Lyα luminosity function is consistent with a power-law form n(>L)~L-1 over 1041-1042.5 ergs s-1. By virtue of the strong magnification factor, we provide constraints on the Lyα luminosity function to unprecedented limits of 1040 ergs s -1, corresponding to a star formation rate of 0.01 Msolar yr-1. We observed carefully selected regions near nine clusters, consistent with magnification factors generally greater than 10 for the redshift range 4.5account our varying intrinsic Lyα line sensitivity as a function of wavelength and sky position. We derive the luminosity function of high- redshift Lyα-emitting sources from a deep, blind, spectroscopic survey that utilized strong-lensing magnification by intermediate- redshift clusters of galaxies. Kneib, Jean-Paul Richard, Johan Kuijken, Konrad The Abundance of Low-Luminosity Lyα Emitters at High Redshift
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