2008MNRAS.385..757D

Query : 2008MNRAS.385..757D

2008MNRAS.385..757D - Mon. Not. R. Astron. Soc., 385, 757-768 (2008/April-1)

Investigating heating and cooling in the BCS and B55 cluster samples.

DUNN R.J.H. and FABIAN A.C.

Abstract (from CDS):

We study clusters in the Brightest Cluster Sample (BCS) which are observed by Chandra and are more distant than redshift, z > 0.1. We select from this subsample the clusters which have both a short central cooling time and a central temperature drop, and also those with a central radio source. Six of the clusters have clear bubbles near the centre. We calculate the heating by these bubbles and express it as the ratio rheat/rcool= 1.34±0.20. This result is used to calculate the average size of bubbles expected in all clusters with central radio sources. In three cases, the predicted bubble sizes approximately match the observed radio lobe dimensions.

We combine this cluster sample with the B55 sample studied in earlier work to increase the total sample size and redshift range. This extended sample contains 71 clusters in the redshift range 0 ≤ z ≤ 0.4. The average distance out to which the bubbles offset the X-ray cooling in the combined sample is at least rheat/rcool= 0.92±0.11. The distribution of central cooling times for the combined sample shows no clusters with clear bubbles and tcool> 1.2Gyr. An investigation of the evolution of cluster parameters within the redshift range of the combined samples does not show any clear variation with redshift.


Abstract Copyright: 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): galaxies: clusters: general - clusters: cooling flows - X-rays: galaxies: clusters

Simbad objects: 50

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Number of rows : 50
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 ACO 68 ClG 00 37 06.2 +09 09 33           ~ 195 0
2 3C 28 rG 00 55 50.583 +26 24 36.68   18.63 19.57 16.26   ~ 213 1
3 BAX 013.9612+26.4117 ClG 00 55 50.9 +26 24 35           ~ 29 0
4 ACO 115 ClG 00 55 59 +26 23.2           ~ 295 1
5 2E 0053.2+2604 ClG 00 55 59.4 +26 20 13           ~ 25 0
6 ACO 267 ClG 01 52 43.016 +00 59 58.90           ~ 241 0
7 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
8 ACT-CL J0438.9+0716 ClG 04 39 00.7 +07 15 45           ~ 62 0
9 BAX 069.7593+05.3453 ClG 04 39 02.2 +05 20 43           ~ 82 0
10 ACO 520 ClG 04 54 10.1 +02 55 38           ~ 465 0
11 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 196 0
12 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 457 0
13 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 277 0
14 ZwCl 0847+3617 ClG 08 50 12.0 +36 03 36           ~ 75 0
15 ClG 0906.5+1110 ClG 09 09 12.7 +10 58 32           ~ 108 0
16 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 308 0
17 MCG-02-24-007 LIN 09 18 05.66848602 -12 05 43.8060823   14.38 14.8     ~ 1077 1
18 ACO 781 ClG 09 20 25.4 +30 30 07           ~ 167 0
19 ZwCl 0949+5207 ClG 09 52 49.1 +51 53 05           ~ 141 0
20 ACO 963 ClG 10 17 03.4 +39 02 56           ~ 414 0
21 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
22 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
23 ACO 1201 ClG 11 12 54.4 +13 26 08           ~ 131 1
24 ACO 1204 ClG 11 13 32.2 +17 35 40           ~ 101 0
25 ACO 1413 ClG 11 55 12.87 +23 23 46.9           ~ 456 0
26 ACO 1423 ClG 11 57 17.3206 +33 36 39.364           ~ 181 0
27 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
28 ZwCl 1231+1007 ClG 12 34 21.9 +09 47 02           ~ 72 0
29 ACO 1682 ClG 13 06 49.7 +46 32 59           ~ 149 1
30 MCXC J1332.7+5032 ClG 13 32 44.8 +50 32 24           ~ 134 0
31 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 335 0
32 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
33 ACO 1914 ClG 14 25 57.4 +37 49 54           ~ 338 0
34 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 309 0
35 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
36 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7 17.819 ~ 155 1
37 ACO 2111 ClG 15 39 40.9 +34 25 04           ~ 188 0
38 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
39 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
40 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1
41 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 381 0
42 MCG+01-43-006 SyG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 502 1
43 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 131 0
44 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 284 0
45 ACO 2261 ClG 17 22 26.9 +32 07 58           ~ 370 0
46 ACO 2294 ClG 17 24 10.1 +85 53 09           ~ 69 0
47 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
48 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 308 0
49 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
50 ACO 2409 ClG 22 00 52.7 +20 58 27           ~ 101 0

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