2005MNRAS.363..723B


C.D.S. - SIMBAD4 rel 1.7 - 2020.05.24CEST23:11:39

2005MNRAS.363..723B - Mon. Not. R. Astron. Soc., 363, 723-733 (2005/November-1)

Evolution of the dark matter distribution with three-dimensional weak lensing.

BACON D.J., TAYLOR A.N., BROWN M.L., GRAY M.E., WOLF C., MEISENHEIMER K., DYE S., WISOTZKI L., BORCH A. and KLEINHEINRICH M.

Abstract (from CDS):

We present a direct detection of the growth of large-scale structure, using weak gravitational lensing and photometric redshift data from the COMBO-17 survey. We use deep R-band imaging of two 0.5x0.5 deg2 fields, affording shear estimates for over 52000 galaxies; we combine these with photometric redshift estimates from our 17-band survey, in order to obtain a 3D shear field. We find theoretical models for evolving matter power spectra and correlation functions, and fit the corresponding shear correlation functions to the data as a function of redshift. We detect the evolution of the power at the 4.7σ level given reasonable priors, and measure the rate of evolution for 0 < z < 1. We also fit correlation functions to our 3D data as a function of cosmological parameters σ8and ΩΛ. We find joint constraints on ΩΛand σ8, demonstrating an improvement in accuracy by ≃40 per cent over that available from 2D weak lensing for the same area.

Abstract Copyright: 2005 RAS

Journal keyword(s): gravitational lensing - cosmological parameters - dark matter - large-scale structure of Universe

Status at CDS:  

CDS comments: Field S11 not identified.

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME SGP reg 00 51 26.275 -27 07 41.70           ~ 510 0
2 NAME Chandra Deep Field-South reg 03 32 28.0 -27 48 30           ~ 1801 1
3 ACO 901 ClG 09 55 56.9256 -10 01 46.519           ~ 98 1
4 ACO 902 ClG 09 56 33.600 -10 09 13.10           ~ 57 1

    Equat.    Gal    SGal    Ecl

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2020.05.24-23:11:39

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