2001MNRAS.328..762E

Query : 2001MNRAS.328..762E

2001MNRAS.328..762E - Mon. Not. R. Astron. Soc., 328, 762-782 (2001/December-2)

The detection of molecular gas in the central galaxies of cooling flow clusters.

EDGE A.C.

Abstract (from CDS):

We present the detections of CO line emission in the central galaxy of 16 extreme cooling flow clusters using the IRAM 30-m and the JCMT 15-m telescopes. These detections of CO(1-0), CO(2-1), CO(3-2) and CO(4-3) are consistent with the presence of a substantial mass of warm molecular gas (10^9-11.5 M_☉) within 50-kpc radius of the central galaxy. We present limits on 13 other galaxies in similarly extreme cooling flow clusters. These results are consistent with the presence of a massive starburst in the central galaxy, which warms a population of cold gas clouds producing both optical and near-infrared emission lines and significant CO line emission. Curiously, our CO detections are restricted to the lower radio power central galaxies. These are the first detections of molecular gas in a cooling flow other than NGC 1275 in the Perseus cluster. As four of our targets have firm limits on their dust mass from SCUBA and the rest have crude limits from IRAS, we can calculate gas-to-dust ratios. Simple analysis indicates that the best secondary indicator of molecular gas is optical line luminosity. We review the implications of these results and the prospects for observations in the near future.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): galaxies: active - cooling flows - galaxies: starburst - submillimetre - X-rays: galaxies: clusters

Simbad objects: 62

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Number of rows : 62
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 11 ClG 00 12 44 -16 26.3           ~ 23 0
2 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
3 ZwCl 0107+3212 ClG 01 10.3 +32 28     12.14     ~ 23 0
4 3C 48 QSO 01 37 41.2996631208 +33 09 35.080388820   16.62 16.20     ~ 2924 2
5 ACO 262 ClG 01 52 50.4 +36 08 46           ~ 727 1
6 ACO 291 ClG 02 01 42.9 -02 11 48           ~ 72 0
7 2A 0251+413 ClG 02 54 26.6 +41 33 25           ~ 328 1
8 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
9 ZwCl 0335+0956 ClG 03 38 35.3 +09 57 54           ~ 402 1
10 BAX 058.2454+19.6830 ClG 03 52 58.9 +19 40 58           ~ 39 0
11 ACO 478 ClG 04 13 24.8 +10 27 52           ~ 522 0
12 ACO 496 ClG 04 33 40.8 -13 14 34           ~ 728 2
13 BAX 069.7593+05.3453 ClG 04 39 02.2 +05 20 43           ~ 82 0
14 PKS 0745-19 rG 07 47 31.3247085936 -19 17 40.013334276   19.60       ~ 422 1
15 ClG 0745-1910 ClG 07 47 32.4 -19 18 23           ~ 378 0
16 BAX 125.2599+07.8631 ClG 08 21 02.4 +07 51 47           ~ 72 1
17 ACO 646 ClG 08 22 10.0 +47 05 58           ~ 102 1
18 4C 55.16 Bla 08 34 54.90398776 +55 34 21.0703409   20.75 19.45 17.180   ~ 297 2
19 ZwCl 0857+2107 ClG 09 00 36.90 +20 53 40.3           ~ 103 0
20 IRAS 09104+4109 Sy2 09 13 45.4951283928 +40 56 28.215343572   19.69 19.21     ~ 260 1
21 ACO 780 ClG 09 18 30 -12 15.7           ~ 469 0
22 IRC +10216 C* 09 47 57.40632 +13 16 43.5648           C9,5e 2455 0
23 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6
24 NAME NGC 3090 Group GrG 10 00 37.93 -02 57 45.3     13.88     ~ 46 0
25 NGC 3079 Sy2 10 01 57.8789863992 +55 40 47.449758324 11.57 11.54 10.86     ~ 1476 3
26 ACO 978 ClG 10 20 26.66 -06 31 37.5           ~ 126 1
27 ZwCl 1021+0426 ClG 10 23 39.0 +04 11 14   15.6 17.95     ~ 297 0
28 NAME Hydra I Cluster ClG 10 36 36.0 -27 31 04           ~ 905 1
29 ACO 1068 ClG 10 40 47.1 +39 57 19           ~ 232 0
30 ACO 1126 ClG 10 53 55.71 +16 51 42.4           ~ 96 0
31 ACO 1185 ClG 11 10 32.15 +28 35 50.4           ~ 271 1
32 NVSS J111421+582327 Rad 11 14 21.65 +58 23 19.3           ~ 32 1
33 ZwCl 1111+5843 ClG 11 14 21.786 +58 23 46.45           ~ 31 0
34 ACO 1367 ClG 11 44 44.6 +19 41 59           ~ 1127 1
35 NGC 3862 Sy2 11 45 05.00904503 +19 36 22.7409909   14.98 13.97     ~ 646 1
36 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
37 ACO 3526 ClG 12 48 49.2 -41 18 17           ~ 1154 2
38 ACO 1664 ClG 13 03 42.4 -24 14 44           ~ 136 0
39 ClG J1347-1145 ClG 13 47 30.5 -11 45 07           ~ 577 0
40 ACO 1795 ClG 13 48 47.4 +26 34 55           ~ 1330 0
41 Z 162-21 BLL 13 52 17.8719816576 +31 26 46.487381604   16.10 15.10     ~ 502 3
42 ACO 1835 ClG 14 01 02.07 +02 52 43.2           ~ 727 1
43 4C 63.20 rG 14 36 37.366 +63 19 13.03         23.6 ~ 80 1
44 ACO 1983 ClG 14 52 59.33 +16 46 11.0           ~ 249 1
45 ZwCl 1455+2232 ClG 14 57 15.2 +22 20 30     18.62 20.04   ~ 309 0
46 ACO 2052 ClG 15 16 41.64 +07 01 45.5           ~ 756 1
47 ACT-CL J1521.8+0742 ClG 15 21 48.8 +07 43 41     15.13     ~ 326 0
48 LEDA 1900245 Bla 15 32 53.780 +30 20 59.41   19.1   15.7 17.819 ~ 155 1
49 IC 1127 SyG 15 34 57.22396 +23 30 11.6084   14.76 13.88     ~ 3090 4
50 ACO 2146 ClG 15 56 04.7 +66 20 24           ~ 192 0
51 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 594 3
52 ACO 2199 ClG 16 28 34.5 +39 32 26           ~ 1206 1
53 ACO 2204 ClG 16 32 47.7 +05 34 18           ~ 457 0
54 ACO 2256 ClG 17 03 37.5 +78 37 23           ~ 928 1
55 ZwCl 1715+4229 ClG 17 17 19.1 +42 26 55           ~ 61 0
56 B3 1715+425 Bla 17 17 19.2365145347 +42 26 57.052993721     16.00 12.8   ~ 50 1
57 ZwCl 1717+5636 ClG 17 18 09.272 +56 40 00.02           ~ 53 1
58 ZwCl 1742+3306 ClG 17 44 16.2753 +32 59 55.115           ~ 93 0
59 ACO 2319 ClG 19 21 14.0 +43 56 57           ~ 495 1
60 BAX 299.8681+40.7339 ClG 19 59 30.3 +40 44 11           ~ 143 0
61 ACO 2390 ClG 21 53 37.4 +17 41 46           ~ 732 2
62 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 572 0

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