2010MNRAS.407.2543A


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.02CEST04:32:01

2010MNRAS.407.2543A - Mon. Not. R. Astron. Soc., 407, 2543-2556 (2010/October-1)

Evolution of the X-ray profiles of poor clusters from the XMM-LSS survey.

ALSHINO A., PONMAN T., PACAUD F. and PIERRE M.

Abstract (from CDS):

A sample consisting of 27 X-ray-selected galaxy clusters from the X-ray Multi-Mirror Large-Scale Structure (XMM-LSS) survey is used to study the evolution in the X-ray surface brightness profiles of the hot intracluster plasma. These systems are mostly groups and poor clusters, with temperatures 0.6-4.8keV, spanning the redshift range 0.05 to 1.05. Comparing the profiles with a standard β-model motivated by studies of low-redshift groups, we find 54 per cent of our systems to possess a central excess, which we identify with a cuspy cool core. Fitting β-model profiles, allowing for blurring by the XMM point spread function, we investigate trends with both temperature and redshift in the outer slope (β) of the X-ray surface brightness, and in the incidence of cuspy cores. Fits to individual cluster profiles and to profiles stacked in bands of redshift and temperature indicate that the incidence of cuspy cores does not decline at high redshifts, as has been reported in rich clusters. Rather such cores become more prominent with increasing redshift. β shows a positive correlation with both redshift and temperature. Given the β- T trend seen in local systems, we assume that temperature is the primary driver for this trend. Our results then demonstrate that this correlation is still present at z ≳ 0.3, where most of our clusters reside.

Abstract Copyright: © 2010 The Authors. Journal compilation © 2010 RAS

Journal keyword(s): galaxies: clusters: general - galaxies: clusters: intracluster medium - galaxies: evolution - galaxies: X-ray

Status at CDS:  

Simbad objects: 29

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Number of rows : 29

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 2XLSSd J022045.3-032556 ClG 02 20 45.46 -03 25 59.7           ~ 20 0
2 ACT-CL J0221.7-0346 ClG 02 21 45.8 -03 46 08           ~ 37 0
3 [RRB2014] RM J022204.6-043300.1 ClG 02 22 05.6 -04 32 47           ~ 16 0
4 2XLSSd J022206.8-030314 ClG 02 22 06.85 -03 03 14.5           ~ 15 0
5 XLSSU J022210.7-024048 ClG 02 22 10.7 -02 40 48           ~ 6 0
6 XMMXCS J022347.5-025134.4 ClG 02 23 48.1 -02 51 31           ~ 8 0
7 XMMXCS J022356.3-030556.8 ClG 02 23 56.300 -03 05 59.30           ~ 11 0
8 [RRB2014] RM J022358.0-043504.8 ClG 02 23 57.4 -04 35 17           ~ 17 0
9 XMMXCS J022401.1-050542.2 ClG 02 24 00.6 -05 05 25           ~ 20 0
10 2XLSSd J022404.2-041331 ClG 02 24 04.19 -04 13 26.6           ~ 39 0
11 CXOU J022428.2-041529 ClG 02 24 33.8 -04 14 15           ~ 27 0
12 2XLSSd J022456.1-050801 ClG 02 24 56.15 -05 07 59.4   16.91   15.48   ~ 12 0
13 XMMXCS J0224.9-0348 ClG 02 24 57.1 -03 48 53           ~ 26 0
14 RzCS 774 ClG 02 25 20.2 -03 48 30           ~ 14 0
15 RzCS 262 ClG 02 25 24.6 -04 40 45       17.3   ~ 33 0
16 2MASX J02253077-0414183 GrG 02 25 30.6 -04 14 20           ~ 31 0
17 2XLSSd J022532.3-035512 ClG 02 25 32.48 -03 55 09.5           ~ 15 0
18 XLSSU J022540.6-031121 ClG 02 25 40.6 -03 11 21           ~ 16 0
19 XCLASS 39 ClG 02 25 59.5 -02 49 35           ~ 8 0
20 NPM1G -05.0105 G 02 26 09.6703118869 -04 58 05.658450961   16.11   14.75   ~ 23 0
21 XLSSC 011 ClG 02 26 10.60 -04 58 11.5           ~ 23 0
22 XCLASS 38 ClG 02 26 16.3 -02 39 57           ~ 10 0
23 RzCS 119 ClG 02 27 09.7 -04 18 05           ~ 27 1
24 2XLSSd J022722.4-032145 ClG 02 27 22.39 -03 21 39.2           ~ 23 0
25 RzCS 124 ClG 02 27 25.9 -04 32 15           ~ 27 0
26 2XLSSd J022738.1-031802 ClG 02 27 38.20 -03 17 56.9           ~ 21 0
27 [BPR2008] WL07 ClG 02 27 40.3 -04 51 31           ~ 29 0
28 RzCS 185 ClG 02 28 03.4 -04 51 03           ~ 24 0
29 NAME COSMOS Field reg 10 00 28.60 +02 12 21.0           ~ 2042 0

    Equat.    Gal    SGal    Ecl

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2020.06.02-04:32:01

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