Results 61 to 70 of about 4,302,843 (380)
Growth factor and galaxy bias from future redshift surveys: a study on parametrizations [PDF]
, 2011 Many experiments in the near future will test dark energy through its effects on the linear growth of matter perturbations. In this paper, we discuss the constraints that future large-scale redshift surveys can put on three different parametrizations of ...
C. D. Porto, L. Amendola, E. Branchini
semanticscholar +1 more source
The AAO 2DF QSO Redshift Survey [PDF]
Symposium - International Astronomical Union, 1999 The study of large-scale structure through QSO clustering provides a potentially powerful route to determining the fundamental cosmological parameters of the Universe (see Croom & Shanks 1996). Unfortunately, previous QSO clustering studies have been limited by the relatively small sizes of homogeneous QSO catalogues that have been available ...
Boyle +4 more
openaire +3 more sources
A SURVEY OF ATOMIC CARBON AT HIGH REDSHIFT [PDF]
The Astrophysical Journal, 2011 Accepted for publication in the ...
Walter, Fabian +4 more
openaire +2 more sources
Combining weak-lensing tomography and spectroscopic redshift surveys [PDF]
, 2011 Redshift space distortion (RSD) is a powerful way of measuring the growth of structure and testing General Relativity, but it is limited by cosmic variance and the degeneracy between galaxy bias b and the growth rate factor f.
Yan-Chuan Cai, G. Bernstein
semanticscholar +1 more source
Measuring Redshift-Space Distortions using Photometric Surveys [PDF]
, 2011 We outline how redshift-space distortions (RSD) can be measured from the angular correlation function w({\theta}), of galaxies selected from photometric surveys.
Alcock +50 more
core +2 more sources
A NEW METHOD FOR THE DETERMINATION OF THE GROWTH RATE FROM GALAXY REDSHIFT SURVEYS [PDF]
, 2011 Given a redshift survey of galaxies with measurements of apparent magnitudes, we present a novel method for measuring the growth rate f(Ω) of cosmological linear perturbations.
A. Nusser, E. Branchini, M. Davis
semanticscholar +1 more source
The kinetic SZ tomography with spectroscopic redshift surveys [PDF]
, 2010 The kinetic Sunyaev Zel'dovich effect (kSZ) effect is a potentially powerful probe to the missing baryons. However, the kSZ signal is overwhelmed by various contaminations and the cosmological application is hampered by loss of redshift information due ...
Jiawei Shao +4 more
semanticscholar +1 more source
Measuring the cosmological constant with redshift surveys [PDF]
, 1996 It has been proposed that the cosmological constant $\Lambda$ might be measured from geometric effects on large-scale structure. A positive vacuum density leads to correlation-function contours which are squashed in the radial direction when calculated ...
Ballinger, W. E. +2 more
core +3 more sources
How to falsify the GR+{Lambda}CDM model with galaxy redshift surveys [PDF]
, 2010 A wide range of models describing modifications to general relativity have been proposed, but no fundamental parameter set exists to describe them. Similarly, no fundamental theory exists for dark energy to parametrize its potential deviation from a ...
V. Acquaviva, E. Gawiser
semanticscholar +1 more source
Object Classification in Astronomical Multi-Color Surveys [PDF]
, 2000 We present a photometric method for identifying stars, galaxies and quasars in multi-color surveys, which uses a library of >65000 color templates. The method aims for extracting the information content of object colors in a statistically correct way and
Abramowitz +23 more
core +2 more sources