2004ApJ...611..821W

Query : 2004ApJ...611..821W

2004ApJ...611..821W - Astrophys. J., 611, 821-834 (2004/August-3)

X-raying A2125: a large-scale hierarchical complex of galaxies and hot gas.

WANG Q.D., OWEN F. and LEDLOW M.

Abstract (from CDS):

We present an 82 ks Chandra ACIS-I observation of a large-scale hierarchical complex, which consists of various clusters/groups of galaxies and low surface brightness X-ray emission at z=0.247. This high-resolution Chandra observation allows us for the first time to separate unambiguously the X-ray contributions from discrete sources and large-scale diffuse hot gas. We detect 99 X-ray sources in a 17'x17' field. Ten of these sources are identified as members of the complex and are mostly radio-bright. Whereas unresolved X-ray sources tend to be associated with galaxies in intermediate density environments, extended X-ray emission peak at bright radio galaxies in the central cluster. In particular, a distinct X-ray trail appears on one side of the fast-moving galaxy C153, clearly due to ram pressure stripping. The diffuse X-ray emission from the central cluster can be characterized by a thermal plasma with a characteristic temperature of 3.2+0.5–0.4 keV and a heavy element abundance of 0.24+0.15–0.12solar (90% confidence uncertainties). In comparison, a patch of low surface brightness X-ray emission apparently originates in relatively low density intergalactic gas with a characteristic temperature of 0.98+0.22–0.27keV and an abundance of ≲0.09 solar. The Chandra observation, together with extensive multiwavelength data, indicates that the complex represents a projection of several galaxy substructures, which may be undergoing major mergers. We discuss the dynamic states of the complex and its substructures, as well as properties of X-ray-emitting galaxies and the relationship to their environments.

Abstract Copyright: ∼

Journal keyword(s): Cosmology: Observations - Galaxies: Clusters: Individual: Alphanumeric: A2125 - Galaxies: Evolution - Galaxies: General - X-Rays: Galaxies - X-Rays: Galaxies: Clusters

VizieR on-line data: <Available at CDS (J/ApJ/611/821): table1.dat>

Nomenclature: Table 1: [WOL2004] XNN (Nos X1-X99).

Simbad objects: 105

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Number of rows : 105
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 CXOU J153918.8+661700 X 15 39 18.89 +66 17 00.8           ~ 1 0
2 CXOU J153919.3+661629 X 15 39 19.36 +66 16 29.6           ~ 1 0
3 CXOU J153922.5+661825 X 15 39 22.59 +66 18 25.4           ~ 1 0
4 CXOU J153925.4+660848 X 15 39 25.48 +66 08 48.2           ~ 1 0
5 CXOU J153935.0+660525 X 15 39 35.02 +66 05 25.8           ~ 1 0
6 CXOU J153935.4+661455 X 15 39 35.49 +66 14 55.9           ~ 1 0
7 CXOU J153935.6+661244 X 15 39 35.61 +66 12 44.8           ~ 1 0
8 CXOU J153938.0+662102 X 15 39 38.08 +66 21 02.7       19.71   ~ 2 0
9 CXOU J153945.1+660651 X 15 39 45.15 +66 06 51.7           ~ 1 0
10 CXOU J153945.2+661236 X 15 39 45.28 +66 12 36.1           ~ 1 0
11 CXOU J153946.0+660702 X 15 39 46.05 +66 07 02.4           ~ 1 0
12 CXOU J153946.6+662013 X 15 39 46.67 +66 20 13.4           ~ 1 0
13 CXOU J153949.3+661737 X 15 39 49.30 +66 17 37.1           ~ 1 0
14 [MOH2004] J153952.6+660954 GiC 15 39 52.87 +66 09 54.0           ~ 3 0
15 [WOL2004] X15 * 15 39 57.9629133672 +66 13 50.863349712           ~ 1 0
16 CXOU J153958.5+660808 X 15 39 58.54 +66 08 08.5           ~ 1 0
17 CXOU J154000.0+660551 X 15 40 00.02 +66 05 51.2           ~ 1 0
18 CXOU J154001.5+661518 X 15 40 01.51 +66 15 18.2           ~ 1 0
19 CXOU J154003.0+661527 X 15 40 03.00 +66 15 27.1           ~ 1 0
20 CXOU J154003.4+661532 X 15 40 03.44 +66 15 32.8           ~ 1 0
21 CXOU J154005.0+661016 X 15 40 05.03 +66 10 16.5           ~ 2 0
22 [DO99] ACO 2125 7 GiC 15 40 05.42 +66 10 13.3           ~ 4 0
23 CXOU J154005.5+660718 X 15 40 05.55 +66 07 18.5           ~ 1 0
24 CXOU J154008.1+661625 X 15 40 08.12 +66 16 25.5           ~ 1 0
25 2MASX J15400902+6612167 GiC 15 40 09.0362086056 +66 12 17.042663376           ~ 4 0
26 CXOU J154009.2+661328 X 15 40 09.20 +66 13 28.0           ~ 1 0
27 CXOU J154010.0+661635 X 15 40 10.07 +66 16 35.2           ~ 1 0
28 CXOU J154010.7+661922 X 15 40 10.75 +66 19 22.5           ~ 1 0
29 [WCB97] LSBXE X 15 40.2 +66 10           ~ 3 0
30 CXOU J154012.3+661438 X 15 40 12.39 +66 14 38.8       19.75   ~ 2 0
31 CXOU J154012.5+660939 X 15 40 12.55 +66 09 39.3           ~ 1 0
32 CXOU J154012.7+661920 X 15 40 12.77 +66 19 20.3           ~ 1 0
33 CXOU J154014.8+661548 X 15 40 14.83 +66 15 48.7           ~ 1 0
34 [MOH2004] J154016.5+661040 GiC 15 40 16.54 +66 10 39.6           ~ 2 0
35 CXOU J154017.8+661302 X 15 40 17.83 +66 13 02.7           ~ 1 0
36 CXOU J154018.4+660712 X 15 40 18.45 +66 07 12.6           ~ 1 0
37 CXOU J154023.3+661651 X 15 40 23.34 +66 16 51.1           ~ 1 0
38 CXOU J154025.5+660838 X 15 40 25.58 +66 08 38.4           ~ 1 0
39 CXOU J154027.1+661050 X 15 40 27.18 +66 10 50.6           ~ 1 0
40 CXOU J154033.5+661908 X 15 40 33.52 +66 19 08.4           ~ 1 0
41 CXOU J154033.6+660800 X 15 40 33.64 +66 08 00.7           ~ 1 0
42 CXOU J154038.8+661125 X 15 40 38.84 +66 11 25.8           ~ 1 0
43 CXOU J154039.1+661006 X 15 40 39.11 +66 10 06.8           ~ 1 0
44 CXOU J154039.4+661713 X 15 40 39.46 +66 17 13.1           ~ 1 0
45 CXOU J154039.9+661236 X 15 40 39.99 +66 12 36.6           ~ 1 0
46 CXOU J154043.7+660844 X 15 40 43.73 +66 08 44.5           ~ 1 0
47 CXOU J154044.8+660904 X 15 40 44.85 +66 09 04.1           ~ 1 0
48 CXOU J154045.0+660507 X 15 40 45.02 +66 05 07.1           ~ 2 0
49 CXOU J154045.3+661727 X 15 40 45.34 +66 17 27.2           ~ 1 0
50 CXOU J154046.2+661053 X 15 40 46.22 +66 10 53.3           ~ 1 0
51 CXOU J154046.7+661320 X 15 40 46.73 +66 13 20.9           ~ 1 0
52 CXOU J154048.0+662002 X 15 40 48.03 +66 20 02.9           ~ 1 0
53 CXOU J154048.5+661026 X 15 40 48.55 +66 10 26.8           ~ 1 0
54 CXOU J154048.8+661135 X 15 40 48.86 +66 11 35.4           ~ 1 0
55 CXOU J154051.5+661414 X 15 40 51.54 +66 14 14.2           ~ 1 0
56 CXOU J154052.0+660632 X 15 40 52.03 +66 06 32.4           ~ 1 0
57 CXOU J154052.4+661236 X 15 40 52.44 +66 12 36.9           ~ 1 0
58 CXOU J154052.5+661424 X 15 40 52.56 +66 14 24.9           ~ 1 0
59 CXOU J154055.6+661458 X 15 40 55.69 +66 14 58.6           ~ 1 0
60 CXOU J154056.4+661628 X 15 40 56.45 +66 16 28.6           ~ 1 0
61 CXOU J154057.1+660917 X 15 40 57.13 +66 09 17.8           ~ 1 0
62 CXOU J154058.9+661742 X 15 40 58.93 +66 17 42.6           ~ 1 0
63 CXOU J154059.2+660640 X 15 40 59.21 +66 06 40.0           ~ 1 0
64 [RS2005] ACO 2125 88 GiC 15 41 00.39 +66 19 03.0           ~ 3 0
65 2MASX J15410194+6616265 GiC 15 41 01.9233554688 +66 16 26.618521584       17.19   ~ 6 0
66 [RS2005] ACO 2125 283 GiC 15 41 02.01 +66 17 21.4           ~ 4 0
67 CXOU J154102.7+661404 X 15 41 02.76 +66 14 04.7           ~ 1 0
68 CXOU J154109.2+661448 X 15 41 09.25 +66 14 48.7           ~ 1 0
69 BOW ACO 2125 CC033 rG 15 41 09.74 +66 15 45.0           ~ 23 0
70 [WCB97] Cluster B ClG 15 41 10.6 +66 26 26           ~ 3 0
71 [MOH2004] J154112.5+661717 G 15 41 12.5 +66 17 17           ~ 3 0
72 CXOU J154112.9+660502 X 15 41 12.90 +66 05 02.8           ~ 1 0
73 ACO 2125 ClG 15 41 14.1 +66 15 57           ~ 124 1
74 2MASX J15411437+6615567 rG 15 41 14.4078965040 +66 15 56.144614572           ~ 8 0
75 [DO99] ACO 2125 36 rG 15 41 14.89 +66 16 04.3           ~ 7 0
76 [DO99] ACO 2125 37 rG 15 41 15.24 +66 15 57.5           ~ 7 0
77 CXOU J154116.9+661627 X 15 41 16.94 +66 16 27.2           ~ 1 0
78 [MOH2004] J154117.3+661924 GiC 15 41 17.43 +66 19 23.8       18.81   ~ 3 0
79 CXOU J154117.9+661343 X 15 41 17.92 +66 13 43.0           ~ 1 0
80 CXOU J154120.8+660933 X 15 41 20.83 +66 09 33.7           ~ 1 0
81 CXOU J154121.9+661347 X 15 41 21.93 +66 13 47.9           ~ 1 0
82 CXOU J154123.7+662057 X 15 41 23.79 +66 20 57.2           ~ 1 0
83 CXOU J154127.3+661741 X 15 41 27.33 +66 17 41.7           ~ 1 0
84 CXOU J154127.4+661413 X 15 41 27.43 +66 14 13.6           ~ 1 0
85 CXOU J154127.5+660637 X 15 41 27.51 +66 06 37.6           ~ 1 0
86 CXOU J154128.3+661247 X 15 41 28.35 +66 12 47.5           ~ 1 0
87 CXOU J154132.4+660834 X 15 41 32.46 +66 08 34.5           ~ 1 0
88 CXOU J154133.1+661215 X 15 41 33.15 +66 12 15.8           ~ 1 0
89 CXOU J154133.7+661341 X 15 41 33.78 +66 13 41.8           ~ 1 0
90 CXOU J154133.8+660728 X 15 41 33.86 +66 07 28.6           ~ 1 0
91 CXOU J154137.3+661506 X 15 41 37.33 +66 15 06.7           ~ 1 0
92 CXOU J154141.2+660531 X 15 41 41.29 +66 05 31.0           ~ 1 0
93 [RS2005] ACO 2125 578 GiC 15 41 43.47 +66 14 19.4           ~ 3 0
94 CXOU J154144.1+661848 X 15 41 44.13 +66 18 48.7           ~ 1 0
95 CXOU J154144.7+661143 X 15 41 44.72 +66 11 43.0           ~ 1 0
96 CXOU J154145.9+661038 X 15 41 45.99 +66 10 38.3           ~ 1 0
97 CXOU J154156.7+660738 X 15 41 56.70 +66 07 38.9           ~ 1 0
98 CXOU J154157.1+661211 X 15 41 57.12 +66 12 11.6           ~ 1 0
99 CXOU J154158.2+661312 X 15 41 58.26 +66 13 12.5           ~ 1 0
100 CXOU J154159.6+661514 X 15 41 59.60 +66 15 14.9           ~ 1 0
101 CXOU J154200.0+661843 X 15 42 00.02 +66 18 43.8           ~ 1 0
102 CXOU J154200.2+661053 X 15 42 00.21 +66 10 53.0           ~ 1 0
103 CXOU J154205.4+661604 X 15 42 05.44 +66 16 04.4           ~ 1 0
104 CXOU J154205.8+661629 X 15 42 05.82 +66 16 29.8           ~ 1 0
105 [WOL2004] X98 * 15 42 05.9754328488 +66 15 27.792352656           ~ 1 0

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