2007ApJ...662..224K


Query : 2007ApJ...662..224K

2007ApJ...662..224K - Astrophys. J., 662, 224-235 (2007/June-2)

A systematic X-ray search for clusters of galaxies behind the Milky Way. II. The second CIZA subsample.

KOCEVSKI D.D., EBELING H., MULLIS C.R. and TULLY R.B.

Abstract (from CDS):

We present the latest results of the Clusters in the Zone of Avoidance (CIZA) survey, which is mapping large-scale structures behind the Milky Way by performing the first systematic search for galaxy clusters at low Galactic latitudes. The survey's approach, which uses X-ray emission to locate cluster candidates, minimizes the problems faced by optically selected cluster surveys, which have traditionally avoided this region of the sky due to the severe extinction present along the Galactic plane. We here present the second flux-limited CIZA cluster catalog, containing 57 X-ray-selected galaxy clusters, of which 88% are new discoveries. We use this sample to examine the degree to which known large-scale structures extend into the zone of avoidance and highlight newly discovered structures that have previously gone unnoticed. We note that the CIZA survey has thus far found fewer rich clusters in the Great Attractor region than would be expected given the region's proposed mass. Instead, we find a significant increase in the number of clusters behind the Great Attractor, with the most notable being an association of clusters near the Shapley supercluster. We propose that these clusters trace an extension of the large-scale filament network in which the Shapley concentration is embedded. We also highlight an association of clusters near the Galactic anticenter, which form the first supercluster found to be completely hidden by the Milky Way. Our preliminary findings of a less massive Great Attractor and the detection of significant structures behind the complex support studies that suggest the motion of nearby galaxies is due, in part, to a large-scale bulk flow, which is induced by overdensities beyond the Hydra-Centaurus region.

Abstract Copyright:

Journal keyword(s): Galaxies: Clusters: General - Cosmology: Large-Scale Structure of Universe - X-Rays: Galaxies: Clusters

VizieR on-line data: <Available at CDS (J/ApJ/662/224): table2.dat>

Nomenclature: Table 2: CIZA JHHMM.m+DDMM N=57.

Simbad objects: 75

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Number of rows : 75
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 CIZA J0142.9+4438 ClG 01 42 55.5 +44 37 25           ~ 18 0
2 ACO 276 ClG 01 57 08 +41 21.6           ~ 19 0
3 ACO 407 ClG 03 01 43.7 +35 49 48           ~ 106 0
4 1RXS J052247.7+280621 ClG 05 22 47.7 +28 06 32           ~ 6 0
5 CIZA J0527.2+0413 ClG 05 27 03.5143 +04 13 03.720           ~ 7 0
6 NAME Gal Anticenter reg 05 46 +28.9           ~ 830 0
7 CIZA J0553.4-0558 ClG 05 53 27.0 -05 58 03           ~ 6 0
8 1RXS J060439.5+425633 ClG 06 04 39.5 +42 56 33           ~ 2 0
9 ACO 553 ClG 06 12 25.8 +48 37 26           ~ 46 0
10 CIZA J0616.3-2156 ClG 06 16 22.1 -21 56 59           ~ 2 0
11 WN B0625.4+4609 ClG 06 29 10.4 +46 06 37           ~ 4 0
12 ZwCl 1121 ClG 06 31 21.4 +25 00 58           ~ 12 0
13 1RXS J063202.0+251937 ClG 06 32 01.4 +25 19 38           ~ 5 0
14 ZwCl 0634+4750 ClG 06 38 07.5 +47 47 27           ~ 31 0
15 CIZA J0657.0+4246 ClG 06 57 00.7 +42 46 49           ~ 5 0
16 CIZA J0707.0+2706 ClG 07 07 02.6 +27 06 23           ~ 6 0
17 87GB 070724.7+224533 ClG 07 10 23.60 +22 40 00.0           ~ 9 1
18 1RXS J072019.1+234904 ClG 07 20 18.0 +23 48 56           ~ 7 0
19 CIZA J0729.4+2436 ClG 07 29 27.8 +24 36 23           ~ 5 0
20 1RXS J073817.8+010216 ClG 07 38 17.8 +01 02 16           ~ 2 0
21 ACO 592 ClG 07 42 31.1486 +09 22 25.893           ~ 60 1
22 ESO 163-15 IG 07 45 08.946 -54 04 50.42   15.52   13.88   ~ 10 0
23 1RXS J075756.2-215740 ClG 07 57 56.2 -21 57 40           ~ 2 0
24 CIZA J0802.1-1926 ClG 08 02 15.6 -19 25 45           ~ 8 0
25 2MASS J08095540-0258044 AG? 08 09 55.4059426440 -02 58 04.454814576   18.16   17.31   ~ 5 0
26 1RXS J081527.2-030819 ClG 08 15 28.6 -03 08 31           ~ 10 0
27 2MASX J09432407-7620101 Bz? 09 43 24.02882 -76 20 10.3613   19       ~ 46 1
28 1RXS J094321.3-761957 ClG 09 43 25.0 -76 19 57           ~ 8 0
29 NAME Great Attractor SCG 10 32 -46.0           ~ 524 0
30 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 813 1
31 CIZA J1201.0-4623 ClG 12 01 03.4 -46 23 26           ~ 6 0
32 ACO S 689 ClG 12 11 06 -46 40.7           ~ 5 0
33 NAME SHAPLEY-CENTAURUS CL SCG 13 06.0 -33 04           ~ 564 0
34 CIZA J1320.7-4855 ClG 13 20 47.0 -48 55 49           ~ 5 0
35 2MAXI J1358-478 ClG 13 58 56.9 -47 50 19           ~ 19 0
36 2MAXI J1455-381 ClG 14 56 10.1 -38 25 17           ~ 10 0
37 1RXS J151820.7-463135 ClG 15 18 20.7 -46 31 35           ~ 2 0
38 CIZA J1535.1-4658 ClG 15 35 09.1 -46 58 45           ~ 6 0
39 1RXS J161406.7-630830 ClG 16 14 06.7 -63 08 30           ~ 1 0
40 ACO 3627 ClG 16 14 22.5 -60 52 07           ~ 278 2
41 1RXS J162800.1-295355 ClG 16 28 00.1 -29 53 55           ~ 1 0
42 NAME Triangulum Australis Cluster ClG 16 38 16.1 -64 20 50           ~ 110 0
43 1RXS J165503.1-262451 ClG 16 55 03.1 -26 24 51           ~ 2 0
44 1RXS J170047.8-314442 ClG 17 00 53.5 -31 44 29           ~ 6 0
45 1RXS J170548.1-742240 ClG 17 05 48.1 -74 22 40           ~ 3 0
46 NAME Oph Cluster ClG 17 12 24.7 -23 21 01           ~ 260 0
47 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13333 0
48 CIZA J1809.0-0414 ClG 18 09 03.1 -04 14 15           ~ 2 0
49 PMN J1813-6126 ClG 18 13 12.0480 -61 27 32.125           ~ 10 0
50 CIZA J1813.3-6127 ClG 18 13 18.7 -61 27 27           ~ 7 0
51 NPM1G +30.0453 ClG 18 24 09.6 +30 29 31           ~ 14 0
52 CIZA J1839.8-2108 ClG 18 39 51.1 -21 08 04           ~ 2 0
53 2MAXI J1844-373 ClG 18 44 31.7 -37 24 17           ~ 5 0
54 2MASX J19041186+3626589 BLL 19 04 11.8663392936 +36 26 58.921335672           ~ 28 1
55 MCXC J1904.2+3626 ClG 19 04 13.2 +36 26 48           ~ 16 0
56 CIZA J1910.1-2239 ClG 19 10 08.9 -22 39 04           ~ 5 0
57 CIZA J1916.1+3525 ClG 19 16 06.5 +35 25 20           ~ 8 0
58 CIZA J1917.5-1315 ClG 19 17 36.1 -13 15 11           ~ 11 1
59 2MASS J19173648-1315080 * 19 17 36.4852367352 -13 15 08.007964452           K5 3 0
60 CIZA J1918.5-0842 ClG 19 18 31.4 -08 42 29           ~ 5 0
61 1RXS J192520.1+370527 ClG 19 25 20.1 +37 05 27           ~ 2 0
62 RXC J1926.1+4832 ClG 19 26 11.2214 +48 33 22.439           ~ 11 0
63 CIZA J1947.6-0542 ClG 19 47 39.4 -05 42 15           ~ 6 0
64 CIZA J1948.3+5113 ClG 19 48 18.9 +51 14 22           ~ 10 0
65 1RXS J195717.9+575127 ClG 19 57 17.9 +57 51 27           ~ 2 0
66 NAME Cyg A Cluster ClG 19 59 30.3 +40 44 11           ~ 135 0
67 GSC 03941-00354 ClG 20 15 18.7 +56 09 33           ~ 7 0
68 CIZA J2106.2+3426 ClG 21 06 16.3 +34 26 25           ~ 5 0
69 NAME Sausage Cluster ClG 22 42 53.0 +53 01 05           ~ 192 0
70 1RXS J230238.1+713649 ClG 23 02 38.1 +71 36 49           ~ 4 0
71 RXC J2320.2+4146 C?G 23 20 14.2727 +41 47 13.494           ~ 9 0
72 CIZA J2330.6+4556 ClG 23 30 39.8 +45 56 14           ~ 5 0
73 NAME Cen Hya Region reg ~ ~           ~ 7 0
74 NAME Local Group GrG ~ ~           ~ 7847 0
75 NAME Per-Psc Filament reg ~ ~           ~ 7 0

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2022.12.08-14:17:36

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