2005MNRAS.357..279C

Query : 2005MNRAS.357..279C

2005MNRAS.357..279C - Mon. Not. R. Astron. Soc., 357, 279-294 (2005/February-2)

Evidence for radio-source heating of groups.

CROSTON J.H., HARDCASTLE M.J. and BIRKINSHAW M.

Abstract (from CDS):

We report evidence that the gas properties of X-ray groups containing radio galaxies differ from those of radio-quiet groups. For a well-studied sample of ROSAT-observed groups, we found that more than half of the elliptical-dominated groups can be considered `radio-loud', and that radio-loud groups are likely to be hotter at a given X-ray luminosity than radio-quiet groups. We tested three different models for the origin of the effect and conclude that radio-source heating is the most likely explanation. We found several examples of groups where there is strong evidence from Chandra or XMM-Newton images for interactions between the radio source and the group gas. A variety of radio-source heating processes are important, including shock-heating by young sources and gentler heating by larger sources. The heating effects can be longer-lasting than the radio emission. We show that the sample of X-ray groups used in our study is not significantly biased in the fraction of radio-loud groups that it contains. This allows us to conclude that the energy per particle that low-power radio galaxies can inject over the group lifetime is comparable to the requirements of structure formation models.

Abstract Copyright: 2005 RAS

Journal keyword(s): galaxies: active - X-rays: galaxies: clusters

Simbad objects: 85

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Number of rows : 85
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 HCG 4 CGG 00 34 15.3 -21 26 52           ~ 59 0
2 NAME PSC CL ClG 00 58 25.0 +30 39 11           ~ 131 1
3 NGC 383 AGN 01 07 24.9647814840 +32 24 45.132586200   13.6 12.14     ~ 821 3
4 NAME NGC 383 Group GrG 01 07 27.7 +32 23 59   11.1 14.1     ~ 85 0
5 NAME NGC 524 Group GrG 01 24 01.6 +09 27 37   11.2       ~ 34 0
6 NGC 524 GiP 01 24 47.7429545736 +09 32 20.089023900   11.5       ~ 494 1
7 NAME NGC 533 Group GrG 01 25 29.1 +01 48 17           ~ 57 0
8 NGC 533 rG 01 25 31.4074984248 +01 45 33.236656812   13.1 14.11     ~ 237 1
9 HCG 10 CGG 01 26 24.5 +34 42 51           ~ 52 0
10 NAME NGC 720 Group GrG 01 52 57.5 -13 30 20           ~ 15 0
11 NAME NGC 741 Group GrG 01 56 22 +05 37.6     14.3     ~ 54 0
12 NGC 741 rG 01 56 23.2 +05 37 35   13.2       ~ 309 2
13 HCG 15 CGG 02 07 39.0 +02 08 18           ~ 75 0
14 HCG 16 CGG 02 09 40.82 -10 11 02.0           ~ 175 0
15 Z 538-57 Sy1 02 23 11.41124925 +42 59 31.3853324   15.71 14.81     ~ 582 2
16 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
17 NAME NGC 1052 Group GrG 02 41 09.3 -08 07 10           ~ 90 0
18 ACO 426 ClG 03 19 47.6 +41 30 54           ~ 2508 1
19 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
20 NAME NGC 1332 Group GrG 03 26 17.1 -21 20 05           ~ 18 0
21 NAME NGC 1400 Group GrG 03 32 16.00 -18 33 54.0           ~ 75 0
22 NGC 1407 rG 03 40 11.904 -18 34 49.36   10.64 9.67 9.13   ~ 613 2
23 NAME NGC 1566 Group GrG 04 20 00.6 -54 56 17           ~ 180 0
24 NGC 1587 GiP 04 30 39.9359019384 +00 39 41.922470340   13.3       ~ 146 0
25 NAME NGC 1587 Group GrG 04 30 46.1 +00 24 25   12.1       ~ 21 0
26 NAME NGC 1808 Group GrG 05 08 10.8 -37 42 18           ~ 26 0
27 NAME NGC 2563 Group GrG 08 20 39.46 +21 04 45.6           ~ 41 0
28 APG 321 IG 09 38 54 -04 51.1   15       ~ 82 0
29 HCG 42 CGG 10 00 13.1 -19 38 24           ~ 100 0
30 NGC 3227 Sy1 10 23 30.5765149296 +19 51 54.282206700   12.61 11.79     ~ 1807 2
31 HCG 48 CGG 10 37 45.6 -27 04 50           ~ 58 0
32 NAME NGC 3396 Group GrG 10 51.4 +32 46           ~ 5 0
33 NAME NGC 3557 Group ClG 11 09 57.4 -37 32 17           ~ 19 0
34 NGC 3557 Sy1 11 09 57.653 -37 32 21.02   11.50 10.40 9.79   ~ 283 2
35 NGC 3607 Sy2 11 16 54.65687 +18 03 06.5120   13.84 12.76     ~ 490 1
36 NAME NGC 3607 Group GrG 11 17 55.9 +18 07 35   9.9       ~ 57 0
37 NAME NGC 3640 Group GrG 11 20.8 +03 20   10.9       ~ 18 0
38 NAME NGC 3665 Group GrG 11 23 30.6 +38 43 31   11.2       ~ 26 1
39 NGC 3665 GiG 11 24 43.630 +38 45 46.05 13.71 13.26 11.62     ~ 364 1
40 NAME NGC 3783 Group GrG 11 39 01.8 -37 44 19           ~ 13 0
41 HCG 58 CGG 11 42 09.4 +10 16 30   11.8 13.68     ~ 82 1
42 NAME NGC 3923 Group GrG 11 51 01.6 -28 48 20           ~ 15 0
43 NGC 3923 GiG 11 51 01.783 -28 48 22.36 11.41 10.59 9.80 8.88   ~ 459 1
44 NAME NGC 4065 Group GrG 12 04 04.94 +20 14 48.4   12.2       ~ 29 0
45 NAME NGC 4073 Group GrG 12 04 44.08 +01 48 40.9     13.53     ~ 292 0
46 NAME NGC 4151 Group GrG 12 10 32.6 +39 24 21           ~ 9 0
47 NAME NGC 4193 Group GrG 12 13 53.6 +13 10 22           ~ 3 0
48 NGC 4261 LIN 12 19 23.2160630 +05 49 29.700024   13.92 12.87     ~ 1290 0
49 NAME NGC 4261 Group GrG 12 20 02.3 +05 20 24     12.9     ~ 43 0
50 NAME NGC 4589 Group GrG 12 21 45.0 +75 18 43           ~ 4 0
51 NAME NGC 4325 Group GrG 12 23 18.2 +10 37 19           ~ 55 0
52 NAME NGC 4565 Group GrG 12 36 20.8 +25 59 16           ~ 6 0
53 NAME NGC 4636 Group GrG 12 42 49.5 +02 41 08           ~ 570 0
54 NGC 4636 LIN 12 42 49.8333280080 +02 41 15.951929028   12.62 11.84     ~ 1156 1
55 NAME NGC 4697 Group GrG 12 48 35.7 -05 48 03           ~ 14 0
56 NAME NGC 4725 Group GrG 12 50 26.6 +25 30 06           ~ 3 0
57 HCG 62 CGG 12 53 05.6 -09 12 21           ~ 313 0
58 NGC 4761 BiC 12 53 05.6960048016 -09 12 14.579980632   13.79   11.25   ~ 90 1
59 NAME NGC 5044 Group GrG 13 14 22.7 -16 32 04           ~ 186 0
60 NGC 5044 BiC 13 15 23.9607836592 -16 23 07.547751744   11.9   10.74   ~ 531 0
61 NAME NGC 5129 Group GrG 13 24 36.0 +13 55 40           ~ 38 0
62 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
63 NAME NGC 5171 Group GrG 13 29 05.10 +11 45 04.8     4.7     ~ 78 0
64 NGC 5171 GiG 13 29 21.5707210536 +11 44 06.389823624   14.7       ~ 61 0
65 NAME NGC 5322 Group GrG 13 46 42.25 +60 21 53.2   10.3       ~ 29 0
66 HCG 67 CGG 13 49 03.5 -07 12 20           ~ 53 0
67 HCG 68 CGG 13 53 40.9 +40 19 07     12.4     ~ 114 0
68 NAME NGC 5689 Group GrG 14 34 52.0 +48 39 36           ~ 3 0
69 NAME NGC 5846 Group GrG 15 05 47.0 +01 34 25           ~ 165 0
70 NAME NGC 5907 Group GrG 15 15 53 +56 19.7           ~ 5 0
71 NGC 5929 Sy1 15 26 06.1564333536 +41 40 14.384294616   13.0 14.00     ~ 450 0
72 NAME NGC 5930 Group GrG 15 26 07.9 +41 40 34           ~ 3 0
73 NGC 5930 AGN 15 26 07.9964334517 +41 40 33.691556640   13.0       ~ 441 0
74 NAME NGC 6338 Group GrG 17 15 32.47 +57 25 19.0           ~ 95 0
75 NAME NGC 6574 Group GrG 18 12 00.7 +14 02 44           ~ 3 0
76 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
77 NAME NGC 7144 GrG GrG 21 55 -48.0           ~ 8 0
78 NGC 7172 Sy2 22 02 01.897 -31 52 11.60   12.72 13.61 11.15 25.10 ~ 572 2
79 HCG 90 CGG 22 02 06.3 -31 55 48           ~ 133 0
80 Z 514-50 SyG 22 31 20.5885689288 +39 21 29.593072404   14.6       ~ 446 1
81 NAME Stephan's Quintet CGG 22 35 57.5 +33 57 36           ~ 480 1
82 IC 1459 rG 22 57 10.60682195 -36 27 43.9966421   10.96 11.85 9.34 10.3 ~ 652 2
83 NAME IC 1459 Group GrG 22 57 16 -36 25.4           ~ 37 0
84 NAME NGC 7714 Group GrG 23 36 14.1 +02 09 19           ~ 7 0
85 HCG 97 CGG 23 47 24.0 -02 19 08           ~ 102 0

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