2025ApJ...995..213R

Query : 2025ApJ...995..213R

2025ApJ...995..213R - Astrophys. J., 995, 213 (2025/December-3)

The Concordance of Weak Lensing and Escape-velocity Mass Estimates for Galaxy Clusters.

RODRIGUEZ A. and MILLER C.J.

Abstract (from CDS):

In the Λ cold dark matter paradigm, the masses of the galaxy clusters inferred using background galaxies via weak-lensing shear should agree with the masses measured using the galaxy projected radius-velocity phase-space data via the escape velocity profile. However, prior work indicates that the correlation between caustic-inferred escape masses and weak lensing masses is statistically consistent with zero. Based on recent advancements in the measurement of the escape edge and its physical interpretation, we conduct a revised comparison between these two independent mass inference techniques for 46 galaxy clusters between 0.05 ≤ z ≤ 0.3 and over an order of magnitude in mass, $14.4\,\leqslant \,{{\rm{log}}}_{10}M/{M}_{\odot }\,\leqslant \,15.4$. We find excellent agreement, with a correlation ($0.67{9}_{-0.049}^{+0.046}$), and a mean relative difference between the two mass measurements consistent with zero (0.02 ± 0.02 dex). The observed scatter between these direct mass estimates is 0.17 dex and is consistent with the reported individual mass errors, suggesting that there is no need for an additional intrinsic component. We discuss the important practical consequences of these results, focusing on the systematic uncertainties inherent to each technique, and their implications for cosmology.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Galaxy clusters - Observational cosmology - Dark energy - Cosmological parameters - Dark matter - Galaxy groups - Gravitation - Orbital motion - Weak gravitational lensing - N-body simulations

Simbad objects: 57

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Number of rows : 57
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 ACO 7 ClG 00 11 43.134 +32 24 46.55           ~ 82 0
2 ACO 21 ClG 00 20 38.75 +28 41 40.5           ~ 122 0
3 ACO 85 ClG 00 41 36.21 -09 19 30.4           ~ 974 0
4 ACO 119 ClG 00 56 08.57 -01 12 00.8           ~ 577 2
5 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 241 0
6 ClG 0657-56 ClG 06 58 26.9 -55 58 21           ~ 1077 1
7 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 196 0
8 ACO 646 ClG 08 22 10.0 +47 05 58           ~ 102 1
9 ACO 655 ClG 08 25 16.12 +47 09 34.2           ~ 118 0
10 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 277 0
11 ACO 750 ClG 09 09 06.7 +11 01 48           ~ 105 1
12 ClG 0906.5+1110 ClG 09 09 12.7 +10 58 32           ~ 108 0
13 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 308 0
14 ACO 795 ClG 09 24 11.26 +14 09 03.5           ~ 120 0
15 ZwCl 0949+5207 ClG 09 52 49.1 +51 53 05           ~ 141 0
16 ACO 961 ClG 10 16 39.24 +33 39 44.4           ~ 61 0
17 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
18 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
19 ACO 990 ClG 10 23 39.46 +49 08 19.6           ~ 88 0
20 ACO 1033 ClG 10 31 39.78 +35 05 34.4           ~ 97 0
21 ACO 1132 ClG 10 58 32.05 +56 47 14.2           ~ 145 1
22 ACO 1246 ClG 11 23 57.4 +21 29 14           ~ 118 0
23 ACO 1361 ClG 11 43 45.85 +46 20 51.8           ~ 96 0
24 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
25 ACO 1423 ClG 11 57 17.3206 +33 36 39.364           ~ 181 0
26 ZwCl 1215+0400 ClG 12 17 43.62 +03 38 51.5           ~ 169 0
27 ACO 1650 ClG 12 58 42.0 -01 45 45           ~ 325 0
28 ACO 1682 ClG 13 06 49.7 +46 32 59           ~ 149 1
29 ACO 1689 ClG 13 11 29.5 -01 20 28           ~ 1178 0
30 MCXC J1332.7+5032 ClG 13 32 44.8 +50 32 24           ~ 134 0
31 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
32 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
33 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
34 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
35 ACO 2009 ClG 15 00 15.2 +21 22 09           ~ 113 0
36 ACO 2029 ClG 15 10 54.2 +05 44 23           ~ 1020 0
37 ACO 2050 ClG 15 16 18.7 +00 05 31           ~ 122 0
38 ACO 2055 ClG 15 18 46.29 +06 13 42.9           ~ 113 0
39 ACO 2065 ClG 15 22 22.7 +27 44 20           ~ 398 0
40 ACO 2069 ClG 15 24 02.92 +29 53 20.3           ~ 165 0
41 ACO 2111 ClG 15 39 40.9 +34 25 04           ~ 188 0
42 ACO 2142 ClG 15 58 26.5 +27 13 52           ~ 825 0
43 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
44 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
45 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 284 0
46 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
47 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 308 0
48 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
49 ACO 2440 ClG 22 23 52.6 -01 35 47           ~ 137 1
50 ACO 2443 ClG 22 26 14.09 +17 25 13.5           ~ 126 0
51 ACO S 1063 ClG 22 48 45.4 -44 31 42           ~ 395 0
52 ACO 2495 ClG 22 50 17.10 +10 55 01.2           ~ 87 0
53 ACO 2537 ClG 23 08 22.3 -02 11 29           ~ 152 0
54 ACO 2631 ClG 23 37 40.7 +00 16 35           ~ 183 0
55 ACO 2645 ClG 23 41 17.0 -09 01 11           ~ 98 0
56 ACT-CL J2344.3-0422 ClG 23 44 15.98 -04 22 24.5           ~ 53 0
57 ACO 2670 ClG 23 54 10.51 -10 23 06.8           ~ 364 0

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