2011A&A...526A..18A

Query : 2011A&A...526A..18A

2011A&A...526A..18A - Astronomy and Astrophysics, volume 526A, 18-18 (2011/2-1)

The XMM-LSS survey: optical assessment and properties of different X-ray selected cluster classes.

ADAMI C., MAZURE A., PIERRE M., SPRIMONT P.G., LIBBRECHT C., PACAUD F., CLERC N., SADIBEKOVA T., SURDEJ J., ALTIERI B., DUC P.A., GALAZ G., GUEGUEN A., GUENNOU L., HERTLING G., ILBERT O., LE FEVRE J.P., QUINTANA H., VALTCHANOV I., WILLIS J.P., AKIYAMA M., AUSSEL H., CHIAPPETTI L., DETAL A., GARILLI B., LEBRUN V., LEFEVRE O., MACCAGNI D., MELIN J.B., PONMAN T.J., RICCI D. and TRESSE L.

Abstract (from CDS):

XMM and Chandra opened a new area for the study of clusters of galaxies not only for cluster physics, but also for the detection of faint and distant clusters that were inaccessible with previous missions. This article presents 66 spectroscopically confirmed clusters (0.05≤z≤1.5) within an area of 6deg2 enclosed in the XMM-LSS survey. Almost two thirds have been confirmed with dedicated spectroscopy only and 10% have been confirmed with dedicated spectroscopy supplemented by literature redshifts. Sub-samples, or classes, of extended-sources are defined in a two-dimensional X-ray parameter space allowing for various degrees of completeness and contamination. We describe the procedure developed to assess the reality of these cluster candidates using the CFHTLS photometric data and spectroscopic information from our own follow-up campaigns. Most of these objects are low-mass clusters, hence constituting a still poorly studied population. In a second step, we quantify the correlations between the optical properties such as richness or velocity dispersion and the cluster X-ray luminosities. We examine the relation of the clusters to the cosmic web. Finally, we review peculiar compact structures in the surveyed area such as very distant clusters and fossil groups.

Abstract Copyright: ∼

Journal keyword(s): surveys - galaxies: clusters: general - large-scale structure of Universe - X-rays: galaxies: clusters

Nomenclature: Tables 2-5: XLSSC NNN N=56 among (Nos 000-070). Table 4: [AMP2011] C555 N=1. Table 5: [AMP2011] JHHMMSS.s+DDMMSS N=7. Table B.1: [AMP2011] DDD.ddd+DD.ddd N=11.

Simbad objects: 72

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Number of rows : 72
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 XLSSU J021651.3-042328 X 02 16 51 -04 23.5           ~ 1 0
2 XLSSC 065 ClG 02 16 59 -04 49.3           ~ 7 0
3 HSCS J021735-051330 ClG 02 17 34.49 -05 13 18.5           ~ 22 0
4 XLSS J021754.6-052655 ClG 02 17 55.15 -05 26 53.4           ~ 5 0
5 NAME SXDSF reg 02 18 00 -05 00.0           ~ 224 1
6 HSCS J021832-050059 ClG 02 18 31.67 -05 00 59.5           ~ 21 0
7 XLSSC 063 ClG 02 18 37.24 -05 40 24.9           ~ 4 0
8 XLSSC 067 ClG 02 18 43.88 -05 32 59.0           ~ 11 0
9 XLSSU J021940.3-045103 X 02 19 41 -04 51.1           ~ 1 0
10 XCLASS 1706 ClG 02 19 44.31 -04 53 15.4           ~ 13 0
11 RzCS 024 ClG 02 20 23.5 -02 50 27           ~ 8 0
12 RzCS 031 ClG 02 20 45.46 -03 25 59.7           ~ 26 0
13 ACT-CL J0221.7-0346 ClG 02 21 45.8 -03 46 08           ~ 51 0
14 XCLASS 169 ClG 02 22 05.6 -04 32 47           ~ 24 0
15 HSCS J022207-030314 ClG 02 22 06.85 -03 03 14.5           ~ 20 0
16 [AMP2011] J022207.9-042808 ClG 02 22 08 -04 28.1           ~ 1 0
17 RzCS 065 ClG 02 22 10.7 -02 40 48           ~ 7 0
18 HSCS J022253-032823 ClG 02 22 53.6 -03 28 28           ~ 16 0
19 2XLSSd J022258.4-040709 GrG 02 22 58.5845444136 -04 07 15.134945880           ~ 9 0
20 XLSSC 046 ClG 02 23 03.0 -04 36 22           ~ 37 0
21 XLSSC 030 ClG 02 23 07 -04 13.0           ~ 8 0
22 XLSS J022341.8-043051 X 02 23 42 -04 30.8           ~ 1 0
23 HSCS J022349-025126 ClG 02 23 48.1 -02 51 31           ~ 12 0
24 RzCS 105 ClG 02 23 56.300 -03 05 59.30           ~ 15 0
25 HSCS J022358-043505 ClG 02 23 57.4 -04 35 17           ~ 24 0
26 HSCS J022402-050527 ClG 02 24 00.6 -05 05 25           ~ 28 0
27 XLSSC 000 ClG 02 24 02 -05 17.9           ~ 1 0
28 RzCS 392 ClG 02 24 04.19 -04 13 26.6           ~ 44 0
29 [AMP2011] J022405.0-041612 ClG 02 24 05 -04 16.2           ~ 1 0
30 XLSSC 007 ClG 02 24 09.0 -03 55 09           ~ 8 0
31 CXOU J022428.2-041529 ClG 02 24 33.8 -04 14 15           ~ 36 0
32 XCLASS 198 ClG 02 24 56.0 -05 08 02           ~ 18 0
33 6dFGS gJ022456.2-050759 AGN 02 24 56.1507668280 -05 07 59.483806752   16.91   15.48   ~ 19 0
34 HSCS J022457-034853 ClG 02 24 57.1 -03 48 53           ~ 29 0
35 XLSSU J022509.2-043239 X 02 25 09 -04 32.5           ~ 1 0
36 XLSSC 043 ClG 02 25 11 -04 01.7           ~ 4 0
37 RzCS 774 ClG 02 25 20.2 -03 48 30           ~ 17 0
38 [PPD2006] Cluster a ClG 02 25 22.9 -04 26 48           ~ 6 0
39 HSCS J022525-044045 ClG 02 25 24.6 -04 40 45       17.3   ~ 41 0
40 XLSSC 045 ClG 02 25 29 -04 15.7           ~ 3 0
41 XLSSU J022529.6-042547 ClG 02 25 29.6 -04 25 47           ~ 7 0
42 2MASX J02253077-0414183 GrG 02 25 30.6 -04 14 20           ~ 36 0
43 HSCS J022532-035509 ClG 02 25 32.48 -03 55 09.5           ~ 20 0
44 XLSSU J022533.8-042540 X 02 25 33.8 -04 25 40           ~ 1 0
45 MARD J022536.2-030928 ClG 02 25 40.6 -03 11 21           ~ 22 0
46 XLSS J022542.2-042434 X 02 25 42 -04 24.6           ~ 1 0
47 [AMP2011] 36.460-04.750 Gr? 02 25 50 -04 45.0           ~ 1 0
48 [AMP2011] J022550.4-044500 ClG 02 25 50 -04 45.0           ~ 1 0
49 XCLASS 39 ClG 02 25 59.5 -02 49 35           ~ 12 0
50 NPM1G -05.0105 EmG 02 26 09.6701490432 -04 58 05.640470580   16.11   14.75   ~ 26 0
51 XLSS J022610.0-043120 X 02 26 10 -04 31.4           ~ 1 0
52 XLSSC 011 ClG 02 26 10.60 -04 58 11.5           ~ 28 0
53 XCLASS 38 ClG 02 26 16.3 -02 39 57           ~ 14 0
54 XLSSC 017 ClG 02 26 27.4 -04 59 55           ~ 12 1
55 XLSSC 020 ClG 02 26 32.8 -05 00 32           ~ 10 1
56 XLSSC 014 ClG 02 26 34.5 -04 03 55           ~ 15 0
57 XCLASS 1548 ClG 02 26 44.7 -03 41 02           ~ 10 0
58 [AMP2011] J022647.5-041428 ClG 02 26 48 -04 14.5           ~ 1 0
59 RzCS 119 ClG 02 27 09.7 -04 18 05           ~ 31 1
60 RzCS 768 ClG 02 27 22.39 -03 21 39.2           ~ 29 0
61 XLSSC 038 ClG 02 27 24.9 -04 11 31           ~ 11 0
62 HSCS J022725-043237 ClG 02 27 25.9 -04 32 15           ~ 34 0
63 XLSSU J022726.8-045412 X 02 27 26 -04 54.2           ~ 2 0
64 ACT-CL J0227.6-0318 ClG 02 27 38.20 -03 17 56.9           ~ 28 0
65 RzCS 180 ClG 02 27 40.3 -04 51 31           ~ 33 0
66 XLSS J022754.1-035100 X 02 27 54 -03 51.1           ~ 1 0
67 XLSS J022756.3-043119 X 02 27 56 -04 31.3           ~ 1 0
68 RzCS 185 ClG 02 28 03.4 -04 51 03           ~ 28 0
69 HSCS J022828-042608 ClG 02 28 27.4 -04 25 48           ~ 19 0
70 HSCS J022829-045939 ClG 02 28 28.2 -04 59 46           ~ 7 0
71 [AMP2011] J022829.7-031257 ClG 02 28 30 -03 13.0           ~ 2 0
72 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 4813 2

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