Results 1 to 10 of about 4,263,806 (339)

Measuring our Universe from Galaxy Redshift Surveys [PDF]

open access: yesLiving Reviews in Relativity, 2004
Galaxy redshift surveys have achieved significant progress over the last couple of decades. Those surveys tell us in the most straightforward way what our local Universe looks like.
Yasushi Suto
exaly   +4 more sources

Beyond the plane-parallel approximation for redshift surveys [PDF]

open access: yes, 2018
Redshift space distortions privilege the location of the observer in cosmological redshift surveys, breaking the translational symmetry of the underlying theory.
Castorina, Emanuele, White, Martin
core   +2 more sources

Bayesian inference from photometric redshift surveys [PDF]

open access: yes, 2011
We show how to enhance the redshift accuracy of surveys consisting of tracers with highly uncertain positions along the line of sight. Photometric surveys with redshift uncertainty delta_z ~ 0.03 can yield final redshift uncertainties of delta_z_f ~ 0 ...
Jasche, Jens, Wandelt, Benjamin D.
core   +4 more sources

On estimating redshift and luminosity distributions in photometric redshift surveys [PDF]

open access: bronze, 2007
The luminosity functions of galaxies and quasars provide invaluable information about galaxy and quasar formation. Estimating the luminosity function from magnitude limited samples is relatively straightforward, provided that the distances to the objects
Sheth, Ravi K.
core   +5 more sources

Recovering the real-space correlation function from photometric redshift surveys [PDF]

open access: yes, 2008
Measurements of clustering in large-scale imaging surveys that make use of photometric redshifts depend on the uncertainties in the redshift determination.
Alberto Fernández-Soto   +31 more
core   +2 more sources

Forecasting Cosmological Constraints from Redshift Surveys [PDF]

open access: yes, 2008
Observations of redshift-space distortions in spectroscopic galaxy surveys offer an attractive method for observing the build-up of cosmological structure, which depends both on the expansion rate of the Universe and our theory of gravity.
Berlind   +39 more
core   +5 more sources

The Nonlinear Redshift Space Power Spectrum: Omega from Redshift Surveys [PDF]

open access: bronze, 1995
We examine the anisotropies in the power spectrum by the mapping of real to redshift space. Using the Zel'dovich approximation, we obtain an analytic expression for the nonlinear redshift space power spectrum in the distant observer limit.
Fisher, K. B., Nusser, A.
core   +2 more sources

Mapping the Galaxy Color-Redshift Relation: Optimal Photometric Redshift Calibration Strategies for Cosmology Surveys [PDF]

open access: yes, 2015
Calibrating the photometric redshifts of >10^9 galaxies for upcoming weak lensing cosmology experiments is a major challenge for the astrophysics community.
Brescia, Massimo   +19 more
core   +8 more sources

Measuring Galaxy Environments with Deep Redshift Surveys [PDF]

open access: yes, 2005
We study the applicability of several galaxy environment measures (n^th-nearest-neighbor distance, counts in an aperture, and Voronoi volume) within deep redshift surveys.
Brian F. Gerke   +6 more
core   +2 more sources

Power-spectrum analysis of three-dimensional redshift surveys [PDF]

open access: green, 1994
We develop a general method for power spectrum analysis of three dimensional redshift surveys. We present rigorous analytical estimates for the statistical uncertainty in the power and we are able to derive a rigorous optimal weighting scheme under the ...
Hume A. Feldman   +2 more
openalex   +3 more sources

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