2008MNRAS.391.1341M

Query : 2008MNRAS.391.1341M

2008MNRAS.391.1341M - Mon. Not. R. Astron. Soc., 391, 1341-1349 (2008/December-2)

The density contrast of the Shapley supercluster.

MUNOZ J.A. and LOEB A.

Abstract (from CDS):

We calculate the density contrast of the Shapley supercluster (SSC) based on the enhanced abundance of X-ray clusters in it using the extended Press-Schechter formalism. We derive a total SSC mass of Mtot= (4.4 ±0.44)x1016M☉ within a sphere of 50Mpc centred at a distance of about 160Mpc. The non-linear fractional density contrast of the sphere is (1 + δ) = 1.76±0.17 relative to the mean matter density in the Universe, but the contrast increases in the interior of the SSC. Including the cosmological constant, the SSC region is found to be gravitationally unbound. The SSC contributes only a minor portion (9.0±2.1 per cent) of the peculiar velocity of the Local Group.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): Local Group - large-scale structure of Universe

CDS comments: Objects B1, B6 (T.1), B8 (text) are <[DSE2005] BN> in SIMBAD.

Simbad objects: 24

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Number of rows : 24
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 721 ClG 08 59 31 +61 17.3           ~ 5 0
2 MCXC J1252.5-3116 ClG 12 52 34.93 -31 15 56.8           ~ 25 0
3 ACO 1631 ClG 12 52 50.6 -15 25 37           ~ 176 1
4 ACO 3528 ClG 12 54 18.2 -29 01 16           ~ 166 1
5 BAX 193.5900-29.0100 ClG 12 54 22.1 -29 00 46           ~ 45 0
6 BAX 193.6700-29.2254 ClG 12 54 40.6 -29 13 44           ~ 76 0
7 ACO 3530 ClG 12 55 36.0 -30 20 49           ~ 109 0
8 ACO 1644 ClG 12 57 11.6 -17 24 34           ~ 391 1
9 ACO 3532 ClG 12 57 19.2 -30 22 13           ~ 185 2
10 [DSE2005] B1 ClG 12 59 11 -21 54.7           ~ 2 0
11 [DSE2005] B6 ClG 12 59 11 -21 54.7           ~ 2 0
12 NAME Shapley Supercluster SCG 13 06.0 -33 04           ~ 677 0
13 ACO 3548 ClG 13 13 29 -44 04.9           ~ 10 1
14 ACO 3556 ClG 13 24 06.2 -31 39 38           ~ 159 0
15 ACO 1736 ClG 13 26 52.1 -27 06 33           ~ 268 2
16 ACO 3558 ClG 13 28 03.2 -31 31 35           ~ 476 2
17 BAX 202.4458-31.6081 ClG 13 29 47.0 -31 36 29           ~ 80 1
18 BAX 202.9000-31.8128 ClG 13 31 28.8 -31 49 40           ~ 88 1
19 RX J1332.2-3303 ClG 13 32 01.3 -33 03 51           ~ 4 0
20 ACO 3562 ClG 13 33 31.8 -31 40 23           ~ 337 1
21 ACO 3571 ClG 13 47 32.4 -32 50 12           ~ 308 2
22 CIZA J1410.4-4246 ClG 14 10 28.5 -42 46 37           ~ 14 0
23 NAME Local Group GrG ~ ~           ~ 9325 0
24 [DSE2005] B8 X ~ ~           ~ 2 0

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