2021MNRAS.507.5425S

Query : 2021MNRAS.507.5425S

2021MNRAS.507.5425S - Mon. Not. R. Astron. Soc., 507, 5425-5431 (2021/November-2)

Quantifying the rarity of the local super-volume.

STOPYRA S., PEIRIS H.V., PONTZEN A., JASCHE J. and NATARAJAN P.

Abstract (from CDS):

We investigate the extent to which the number of clusters of mass exceeding 1015 M☉ h–1 within the local super-volume (< 135 Mpc h–1) is compatible with the standard ΛCDM cosmological model. Depending on the mass estimator used, we find that the observed number N of such massive structures can vary between 0 and 5. Adopting N = 5 yields ΛCDM likelihoods as low as 2.4 x 10–3 (with σ8 = 0.81) or 3.8 x 10–5 (with σ8 = 0.74). However, at the other extreme (N = 0), the likelihood is of order unity. Thus, while potentially very powerful, this method is currently limited by systematic uncertainties in cluster mass estimates. This motivates efforts to reduce these systematics with additional observations and improved modelling.

Abstract Copyright: © 2021 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.

Journal keyword(s): methods: data analysis - large-scale structure of Universe - cosmology: theory

Simbad objects: 21

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Number of rows : 21
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 NAME Psc-Per Supercluster SCG 02 33.2 +41 37           ~ 444 1
2 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
3 ACO 548 ClG 05 47 01.7 -25 36 59           B8 209 2
4 NAME Great Attractor SCG 10 32 -46.0           ~ 617 0
5 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
6 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
7 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
8 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
9 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
10 ACO 2063 ClG 15 23 01.8 +08 38 22           ~ 414 2
11 NAME Hercules Supercluster SCG 15 47 +18.2           ~ 166 1
12 ACO 2147 ClG 16 02 11.96 +15 55 11.5           ~ 416 0
13 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 594 3
14 ACO 2152 ClG 16 05 22.4 +16 26 55           ~ 165 0
15 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 340 2
16 ACO 2197 ClG 16 27 48.01 +40 58 04.5           ~ 290 0
17 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
18 BAX 252.7839+04.9926 ClG 16 51 08.2 +04 59 34           ~ 50 0
19 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
20 NAME Local Void vid 18 38 +18.0           ~ 234 0
21 NAME Sloan Great Wall ? ~ ~           ~ 191 0

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