1998AJ....116.2632G

Query : 1998AJ....116.2632G

1998AJ....116.2632G - Astron. J., 116, 2632-2643 (1998/December-0)

The motions of clusters of galaxies and the dipoles of the peculiar velocity field.

GIOVANELLI R., HAYNES M.P., SALZER J.J., WEGNER G., DA COSTA L.N. and FREUDLING W.

Abstract (from CDS):

In preceding papers of this series, TF relations for galaxies in 24 clusters with radial velocities between 1000 and 9200 km.s–1 (SCI sample) were obtained, a Tully-Fisher (TF) template relation was constructed, and mean offsets of each cluster with respect to the template were obtained. Here, an estimate of the line-of-sight peculiar velocities of the clusters and their associated errors are given. It is found that cluster peculiar velocities in the cosmic microwave background reference frame do not exceed 600 km.s–1 and that their distribution has a line-of-sight dispersion of 300 km.s–1, suggesting a more quiescent cluster peculiar velocity field than previously reported. When measured in a reference frame in which the Local Group is at rest, the set of clusters at cz > 3000 km.s–1 exhibits a dipole moment in agreement with that of the CMB, both in amplitude and apex direction. It is estimated that the bulk flow of a sphere of 6000 km.s–1 radius in the CMB reference frame is between 140 and 320 km.s–1.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Cosmic Microwave Background - Cosmology: Observations - Cosmology: Distance Scale - Galaxies: Distances and Redshifts

Simbad objects: 31

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Number of rows : 31
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 NAME NGC 383 Group GrG 01 07 27.7 +32 23 59   11.1 14.1     ~ 82 0
2 NAME NGC 507 Group GrG 01 23.7 +33 15           ~ 80 0
3 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 699 1
4 NAME PER SUPERCL SCG 02 33.2 +41 37           ~ 413 1
5 ACO 400 ClG 02 57 37.4 +06 00 45           ~ 399 3
6 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 1827 0
7 NAME Eridanus Star Cluster GlC 04 24 44.5 -21 11 13           ~ 178 1
8 NAME Cancer Cluster ClG 08 20 54 +21 04.5           ~ 155 0
9 ACO S 636 ClG 10 29 41.0957 -35 19 32.908           ~ 225 0
10 NAME Great Attractor SCG 10 32 -46.0           ~ 558 0
11 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 840 1
12 NAME NGC 3557 Group ClG 11 09 57.4 -37 32 17           ~ 19 0
13 NAME Coma Supercluster SCG 11 23 +23.9           ~ 270 0
14 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1077 1
15 NAME Virgo Cluster ClG 12 26 32.1 +12 43 24           ~ 6647 0
16 NAME Cen 30 ClG 12 48 51.7 -41 18 21           ~ 62 0
17 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4804 2
18 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 608 0
19 NAME ESO 508 ClG 13 12 36.5 -23 24 48           ~ 17 0
20 NAME HYA-CEN SUPERCL SCG 13 14 -33.3           ~ 139 0
21 NAME IC 4329 Group GrG 13 48 36.4 -30 30 13           ~ 141 2
22 NAME Ursa Major Cluster ClG 15 08.8 +67 07           ~ 410 0
23 ACO 2197 ClG 16 27 48.01 +40 58 04.5           ~ 285 0
24 ACO 2199 ClG 16 28 43.31 +39 34 07.6           ~ 1172 1
25 ACO S 805 ClG 18 47 14.4 -63 19 45           ~ 133 3
26 NAME Pavo Cluster ClG 20 18 14.2 -70 50 41           ~ 49 0
27 MCL 59 GrG 22 03 12 -31 59.5           ~ 11 0
28 NAME Peg Cluster ClG 23 20 14.7 +08 12 23           ~ 129 0
29 ACO 2634 ClG 23 38 18.4 +27 01 37           ~ 503 2
30 ACO 2666 ClG 23 50 56.2 +27 08 41           ~ 204 0
31 NAME Local Group GrG ~ ~           ~ 8393 0

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