2003A&A...409..851C


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST00:56:26

2003A&A...409..851C - Astronomy and Astrophysics, volume 409, 851-856 (2003/10-3)

Weak lensing by high-redshift clusters of galaxies. II. Mean redshift of the faint background galaxy population.

CLOWE D., LUPPINO G.A. and KAISER N.

Abstract (from CDS):

We use weak lensing shear measurements of six z>0.5 clusters of galaxies to derive the mean lensing redshift of the background galaxies used to measure the shear. Five of these clusters are compared to X-ray mass models and verify a mean lensing redshift for a 23<R<26.3, R-I<0.9 background galaxy population in good agreement with photometric redshift surveys of the HDF-S. The lensing strength of the six clusters is also analyzed as a function of the magnitude of the background galaxies, and an increase in shear with increasing magnitude is detected at moderate significance. The change in the strength of the shear is presumed to be caused by an increase in the mean redshift of the background galaxies with increasing magnitude, and the degree of change detected is also in agreement with those in photometric redshift surveys of the HDF-S.

Abstract Copyright:

Journal keyword(s): cosmology: observations - dark matter - gravitational lensing - galaxies: distances and redshifts - galaxies: clusters: general

CDS comments: RX J1716.4+6708 is a misprint for RX J1716.6+6708.

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 ClG 0016+16 ClG 00 18 33.3 +16 26 36           ~ 467 0
2 ClG 0451-03 ClG 04 54 10.9 -03 01 07     20.0     ~ 323 0
3 ClG 1054-03 ClG 10 57 00.2 -03 37 27     22     ~ 447 0
4 ClG 1137+66 ClG 11 40 23.3 +66 09 01     21.0     ~ 134 0
5 ClG J1716+6708 ClG 17 16 49.6 +67 08 30           ~ 112 0
6 ClG 2053-04 ClG 20 56 21.2 -04 37 46   21.0       ~ 159 0
7 NAME HDF-S reg 22 32 56 -60 33.0           ~ 534 0

    Equat.    Gal    SGal    Ecl

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2019.10.21-00:56:26

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