2014MNRAS.444.2723C


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.02CEST04:05:38

2014MNRAS.444.2723C - Mon. Not. R. Astron. Soc., 444, 2723-2753 (2014/November-1)

The XMM-LSS survey: the Class 1 cluster sample over the extended 11 deg^2 and its spatial distribution.

CLERC N., ADAMI C., LIEU M., MAUGHAN B., PACAUD F., PIERRE M., SADIBEKOVA T., SMITH G.P., VALAGEAS P., ALTIERI B., BENOIST C., MAUROGORDATO S. and WILLIS J.P.

Abstract (from CDS):

This paper presents 52 X-ray bright galaxy clusters selected within the 11 deg2 XMM-LSS survey. 51 of them have spectroscopic redshifts (0.05 < z < 1.06), one is identified at zphot = 1.9, and all together make the high-purity `Class 1' (C1) cluster sample of the XMM-LSS, the highest density sample of X-ray-selected clusters with a monitored selection function. Their X-ray fluxes, averaged gas temperatures (median TX = 2 keV), luminosities (median LX, 500 = 5x1043 erg/s) and total mass estimates (median 5x1013h-1M) are measured, adapting to the specific signal-to-noise regime of XMM-LSS observations. Particular care is taken in deriving the sample selection function by means of realistic simulations reproducing the main characteristics of XMM observations. The redshift distribution of clusters shows a deficit of sources when compared to the cosmological expectations, regardless of whether Wilkinson Microwave Anisotropy Probe-9 or Planck-2013 cosmic microwave background parameters are assumed. This lack of sources is particularly noticeable at 0.4 ≲ z ≲ 0.9. However, after quantifying uncertainties due to small number statistics and sample variance, we are not able to put firm (i.e. >3σ) constraints on the presence of a large void in the cluster distribution. We work out alternative hypotheses and demonstrate that a negative redshift evolution in the normalization of the LX-TX relation (with respect to a self-similar evolution) is a plausible explanation for the observed deficit. We confirm this evolutionary trend by directly studying how C1 clusters populate the LX-TX-z space, properly accounting for selection biases. We also point out that a systematically evolving, unresolved, central component in clusters and groups (AGN contamination or cool core) can impact the classification as extended sources and be partly responsible for the observed redshift distribution. We provide in a table the catalogue of 52 clusters together with their measured properties.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): galaxies: clusters: general - cosmology: observations - X-rays: galaxies: clusters

Nomenclature: Table 1: XLSSC NNN N=52 among (Nos 1-80).

Status at CDS:  

Simbad objects: 53

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Number of rows : 53

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 ACO 329 ClG 02 14 40.900 -04 33 21.90           ~ 33 0
2 2XLSSd J021443.7-034920 ClG 02 14 43.71 -03 49 21.4           ~ 4 0
3 2XLSSd J021524.1-034332 ClG 02 15 23.99 -03 43 32.2           ~ 23 0
4 XCLASS 343 ClG 02 15 29 -04 40.9           ~ 11 0
5 XMMXCS J021547.2-045031.4 ClG 02 15 48 -04 50.5           ~ 5 0
6 ACO 334 ClG 02 16 12.2 -04 14 31           ~ 13 0
7 XLSSU J021658.9-044904 ClG 02 16 59 -04 49.3           ~ 4 0
8 [RRB2014] RM J021735.3-051330.3 ClG 02 17 34.49 -05 13 18.5           ~ 14 0
9 XLSSU J021744.1-034536 ClG 02 17 44 -03 45.6           ~ 11 0
10 XLSSC 079 ClG 02 17 59 -04 51.8           ~ 2 0
11 XLSSC 077 ClG 02 18 05 -03 39.4           ~ 2 0
12 [FWT2010] SXDF07XGG ClG 02 18 25.11 -05 24 51.7           ~ 4 0
13 XCLASS 1705 ClG 02 18 31.67 -05 00 59.5           ~ 13 0
14 XCLASS 1706 ClG 02 19 44.31 -04 53 15.4           ~ 8 0
15 RzCS 024 ClG 02 20 23.5 -02 50 27           ~ 6 0
16 2XLSSd J022045.3-032556 ClG 02 20 45.46 -03 25 59.7           ~ 20 0
17 ACT-CL J0221.7-0346 ClG 02 21 45.8 -03 46 08           ~ 37 0
18 [RRB2014] RM J022156.4-054531.5 ClG 02 21 56 -05 45.4           ~ 11 0
19 [RRB2014] RM J022204.6-043300.1 ClG 02 22 05.6 -04 32 47           ~ 16 0
20 2XLSSd J022206.8-030314 ClG 02 22 06.85 -03 03 14.5           ~ 15 0
21 XLSSU J022210.7-024048 ClG 02 22 10.7 -02 40 48           ~ 6 0
22 RzCS 315 ClG 02 22 53.6 -03 28 28           ~ 10 0
23 2XLSSd J022320.0-052713 ClG 02 23 20.20 -05 27 14.9           ~ 4 0
24 XMMXCS J022347.5-025134.4 ClG 02 23 48.1 -02 51 31           ~ 8 0
25 XMMXCS J022356.3-030556.8 ClG 02 23 56.300 -03 05 59.30           ~ 11 0
26 [RRB2014] RM J022358.0-043504.8 ClG 02 23 57.4 -04 35 17           ~ 17 0
27 XMMXCS J022401.1-050542.2 ClG 02 24 00.6 -05 05 25           ~ 20 0
28 2XLSSd J022404.2-041331 ClG 02 24 04.19 -04 13 26.6           ~ 39 0
29 XLSSC 062 ClG 02 24 14 -02 43.3           ~ 5 0
30 [BPR2008] WL04 ClG 02 24 27.0 -04 50 34           ~ 11 0
31 CXOU J022428.2-041529 ClG 02 24 33.8 -04 14 15           ~ 27 0
32 2XLSSd J022456.1-050801 ClG 02 24 56.15 -05 07 59.4   16.91   15.48   ~ 12 0
33 XMMXCS J0224.9-0348 ClG 02 24 57.1 -03 48 53           ~ 26 0
34 XLSSC 054 ClG 02 25 17 -05 53.3           ~ 7 0
35 RzCS 774 ClG 02 25 20.2 -03 48 30           ~ 14 0
36 RzCS 262 ClG 02 25 24.6 -04 40 45       17.3   ~ 33 0
37 2MASX J02253077-0414183 GrG 02 25 30.6 -04 14 20           ~ 31 0
38 2XLSSd J022532.3-035512 ClG 02 25 32.48 -03 55 09.5           ~ 15 0
39 XLSSU J022540.6-031121 ClG 02 25 40.6 -03 11 21           ~ 16 0
40 XCLASS 342 ClG 02 25 48 -05 53.7           ~ 11 0
41 XCLASS 39 ClG 02 25 59.5 -02 49 35           ~ 8 0
42 NPM1G -05.0105 G 02 26 09.6703118869 -04 58 05.658450961   16.11   14.75   ~ 23 0
43 XLSSC 011 ClG 02 26 10.60 -04 58 11.5           ~ 23 0
44 XCLASS 38 ClG 02 26 16.3 -02 39 57           ~ 10 0
45 XLSSC 009 ClG 02 26 44.7 -03 41 02           ~ 6 0
46 RzCS 119 ClG 02 27 09.7 -04 18 05           ~ 27 1
47 2XLSSd J022722.4-032145 ClG 02 27 22.39 -03 21 39.2           ~ 23 0
48 RzCS 124 ClG 02 27 25.9 -04 32 15           ~ 27 0
49 2XLSSd J022738.1-031802 ClG 02 27 38.20 -03 17 56.9           ~ 21 0
50 [BPR2008] WL07 ClG 02 27 40.3 -04 51 31           ~ 29 0
51 RzCS 185 ClG 02 28 03.4 -04 51 03           ~ 24 0
52 XLSSC 074 ClG 02 28 08 -05 35.8           ~ 3 0
53 [RRB2014] RM J022827.8-042607.5 ClG 02 28 27.4 -04 25 48           ~ 16 0

    Equat.    Gal    SGal    Ecl

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2020.06.02-04:05:38

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