2018ApJ...860L...4S

Query : 2018ApJ...860L...4S

2018ApJ...860L...4S - Astrophys. J., 860, L4-L4 (2018/June-2)

CLUMP-3D: testing ΛCDM with galaxy cluster shapes.

SERENO M., UMETSU K., ETTORI S., SAYERS J., CHIU I.-N., MENEGHETTI M., VEGA-FERRERO J. and ZITRIN A.

Abstract (from CDS):

The ΛCDM model of structure formation makes strong predictions on the concentration and shape of dark matter (DM) halos, which are determined by mass accretion processes. Comparison between predicted shapes and observations provides a geometric test of the ΛCDM model. Accurate and precise measurements needs a full three-dimensional (3D) analysis of the cluster mass distribution. We accomplish this with a multi-probe 3D analysis of the X-ray regular Cluster Lensing and Supernova survey with Hubble (CLASH) clusters combining strong and weak lensing, X-ray photometry and spectroscopy, and the Sunyaev-Zel'dovich effect (SZe). The cluster shapes and concentrations are consistent with ΛCDM predictions. The CLASH clusters are randomly oriented, as expected given the sample selection criteria. Shapes agree with numerical results for DM-only halos, which hints at baryonic physics being less effective in making halos rounder.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: intracluster medium - gravitational lensing: weak

Simbad objects: 16

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Number of rows : 16
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ACO 209 ClG 01 31 52.9 -13 36 53           ~ 295 0
2 ACO 383 ClG 02 48 03.3915 -03 31 45.228           ~ 359 0
3 ClG J0329-0212 ClG 03 29 41.6 -02 11 47           ~ 142 0
4 ClG J0429-0253 ClG 04 29 36.0 -02 53 09           ~ 123 0
5 ClG J0744+3927 ClG 07 44 52.5 +39 27 30           ~ 181 0
6 ACO 611 ClG 08 00 58.7 +36 02 49           ~ 258 0
7 MCS J1115.8+0129 ClG 11 15 52.1 +01 29 53           ~ 131 0
8 MCS J1206.2-0847 ClG 12 06 12.2 -08 48 02           ~ 246 0
9 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 548 0
10 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7 17.819 ~ 145 0
11 ClG J1720+3536 ClG 17 20 16.8 +35 36 27           ~ 141 1
12 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 342 0
13 ClG J1931-2635 ClG 19 31 49.6 -26 34 33           ~ 161 0
14 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 271 0
15 ClG 2137-2353 ClG 21 40 12.8 -23 39 27     18.5     ~ 378 0
16 ACO S 1063 ClG 22 48 45.4 -44 31 42           ~ 320 0

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