2015MNRAS.454.4085B


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.19CEST19:26:12

2015MNRAS.454.4085B - Mon. Not. R. Astron. Soc., 454, 4085-4102 (2015/December-3)

Galaxy cluster lensing masses in modified lensing potentials.

BARREIRA A., LI B., JENNINGS E., MERTEN J., KING L., BAUGH C.M. and PASCOLI S.

Abstract (from CDS):

We determine the concentration-mass relation of 19 X-ray selected galaxy clusters from the Cluster Lensing and Supernova Survey with Hubble survey in theories of gravity that directly modify the lensing potential. We model the clusters as Navarro-Frenk-White haloes and fit their lensing signal, in the Cubic Galileon and Nonlocal gravity models, to the lensing convergence profiles of the clusters. We discuss a number of important issues that need to be taken into account, associated with the use of non-parametric and parametric lensing methods, as well as assumptions about the background cosmology. Our results show that the concentration and mass estimates in the modified gravity models are, within the error bars, the same as in Λ cold dark matter. This result demonstrates that, for the Nonlocal model, the modifications to gravity are too weak at the cluster redshifts, and for the Galileon model, the screening mechanism is very efficient inside the cluster radius. However, at distances ∼ (2-20)Mpch-1 from the cluster centre, we find that the surrounding force profiles are enhanced by ∼ 20-40 percent in the Cubic Galileon model. This has an impact on dynamical mass estimates, which means that tests of gravity based on comparisons between lensing and dynamical masses can also be applied to the Cubic Galileon model.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): gravitational lensing: strong - gravitational lensing: weak - galaxies: clusters: general - cosmology: theory

Simbad objects: 19

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Number of rows : 19

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 ACO 209 ClG 01 31 57.5 -13 34 35           ~ 252 0
2 ACO 383 ClG 02 48 06.9 -03 29 32           ~ 302 0
3 ClG J0329-0212 ClG 03 29 41.6 -02 11 47           ~ 108 0
4 ClG J0429-0253 ClG 04 29 36.0 -02 53 09           ~ 99 0
5 ClG J0744+3927 ClG 07 44 52.5 +39 27 30           ~ 163 0
6 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 227 0
7 MCS J1115.8+0129 ClG 11 15 52.1 +01 29 53           ~ 103 0
8 MCS J1206.2-0847 ClG 12 06 12.2 -08 48 02           ~ 186 0
9 ClG J1226+3332 ClG 12 26 57.7 +33 32 50           ~ 195 0
10 ClG J1311-0311 ClG 13 11 01.7 -03 10 38           ~ 92 0
11 ClG J1347-1145 ClG 13 47 33.5 -11 45 42           ~ 477 0
12 ClG J1423+2404 ClG 14 23 47.7 +24 04 40           ~ 180 0
13 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7   ~ 132 0
14 ClG J1720+3536 ClG 17 20 16.8 +35 36 27           ~ 117 1
15 ACO 2261 ClG 17 22 28.3 +32 09 13           ~ 289 0
16 ClG J1931-2635 ClG 19 31 49.6 -26 34 33           ~ 126 0
17 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 220 0
18 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 350 0
19 ACO S 1063 ClG 22 48 54.3 -44 31 07           ~ 212 0

    Equat.    Gal    SGal    Ecl

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2020.10.19-19:26:12

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