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 - 2022
#notes
1 ACO 68 ClG 00 37 06.2 +09 09 33           ~ 172 0
2 87GB 005314.6+260945 BiC 00 55 50.583 +26 24 36.68   18.63 19.57 16.26   ~ 203 1
3 NAME ACO 115N ClG 00 55 50.9 +26 24 35           ~ 26 0
4 NAME ACO 115S ClG 00 55 59.4 +26 20 13           ~ 23 0
5 ACO 115 ClG 00 55 59.5 +26 19 14           ~ 250 1
6 ACO 267 ClG 01 52 41 +01 00.4           ~ 213 0
7 ACO 426 ClG 03 19 47.2 +41 30 47           ~ 2102 1
8 RX J0439.0+0715 ClG 04 39 00.7 +07 15 45           ~ 55 0
9 BAX 069.7593+05.3453 ClG 04 39 02.2 +05 20 43           ~ 73 0
10 ACO 520 ClG 04 54 19.0 +02 56 49           ~ 406 0
11 ACO 586 ClG 07 32 20.3 +31 37 58           ~ 165 0
12 ACO 665 ClG 08 30 45.2 +65 52 55           ~ 417 0
13 ACO 697 ClG 08 42 57.6 +36 21 45           ~ 233 0
14 ZwCl 0847+3617 ClG 08 50 12.0 +36 03 36           ~ 62 0
15 BAX 137.3194+10.9772 ClG 09 09 12.7 +10 58 32           ~ 53 1
16 ACO 773 ClG 09 17 51.3 +51 43 20           ~ 273 0
17 NAME Hya A LIN 09 18 05.6783347248 -12 05 43.634531472   14.38 14.8     ~ 961 1
18 ACO 781 ClG 09 20 25.4 +30 30 07           ~ 135 0
19 ZwCl 0949+5207 ClG 09 52 49.1 +51 53 05           ~ 121 0
20 ACO 963 ClG 10 17 09.6 +39 01 00           ~ 372 0
21 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6       ~ 264 0
22 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 194 0
23 ACO 1201 ClG 11 12 54.4 +13 26 08           ~ 95 1
24 ACO 1204 ClG 11 13 32.2 +17 35 40           ~ 86 0
25 ACO 1413 ClG 11 55 18.0 +23 24 19           ~ 400 0
26 ACO 1423 ClG 11 57 47.34 +33 42 43.5           ~ 152 0
27 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6684 3
28 ZwCl 1231+1007 ClG 12 34 21.9 +09 47 02           ~ 59 0
29 ACO 1682 ClG 13 06 49.7 +46 32 59           ~ 125 1
30 NAME ACO 1758N ClG 13 32 44.8 +50 32 24           ~ 87 0
31 ACO 1763 ClG 13 35 20.1 +41 00 04           ~ 284 0
32 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 656 1
33 ACO 1914 ClG 14 26 01.3 +37 49 36           ~ 289 0
34 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62     ~ 274 0
35 ACO 2052 ClG 15 16 45.5 +07 00 01           ~ 702 1
36 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7   ~ 136 0
37 ACO 2111 ClG 15 39 40.9 +34 25 04           ~ 165 0
38 ACO 2199 ClG 16 28 37.0 +39 31 28           ~ 1129 1
39 ACO 2204 ClG 16 32 45.7 +05 34 43           ~ 415 0
40 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 790 1
41 ACO 2219 ClG 16 40 22.1 +46 42 20           ~ 337 0
42 NAME Hercules A rG 16 51 07.9886687784 +04 59 35.547131472     18.25     ~ 447 1
43 ACO 2259 ClG 17 20 09.2 +27 40 09           ~ 105 0
44 ClG J1720+2638 ClG 17 20 09.6 +26 37 35           ~ 222 0
45 ACO 2261 ClG 17 22 28.3 +32 09 13           ~ 314 0
46 ACO 2294 ClG 17 24 10.1 +85 53 09           ~ 58 0
47 NAME Cyg A Sy2 19 59 28.35645829 +40 44 02.0966496   16.22 15.10     ~ 2241 2
48 ClG J2129+0005 ClG 21 29 40.5 +00 05 47           ~ 237 0
49 ACO 2390 ClG 21 53 34.6 +17 40 11           ~ 652 2
50 ACO 2409 ClG 22 00 52.7 +20 58 27           ~ 69 0

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2022.07.06-10:11:16

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