2007ApJ...662..166H

Query : 2007ApJ...662..166H

2007ApJ...662..166H - Astrophys. J., 662, 166-181 (2007/June-2)

The interaction between radio lobes and hot gas in the nearby radio galaxies 3C 285 and 3C 442A.

HARDCASTLE M.J., KRAFT R.P., WORRALL D.M., CROSTON J.H., EVANS D.A., BIRKINSHAW M. and MURRAY S.S.

Abstract (from CDS):

We present Chandra observations of two nearby radio galaxies in group environments, 3C 285 and 3C 442A. The host galaxies of both sources are involved in mergers with nearby massive galaxies, and the hot gas in the systems is extended along lines joining the interacting galaxies. Both sources show strong evidence for interactions between the radio lobes and the asymmetrical hot gas. We argue that the structure in the hot gas is independent of the existence of the radio lobes in these systems and further that hot gas shaped by an ongoing massive galaxy merger may play an important role in the dynamics of radio lobes in other objects. For 3C 442A, our observations show that gas is being driven out of both members of the host interacting galaxy pair, and the implied constraints on galaxy velocities are consistent with mildly supersonic motions with respect to the group-scale hot gas. The previously known filamentary radio structure in the center of 3C 442A may be a result of the interaction between hot gas expelled from these galaxies and preexisting radio-emitting plasma. In 3C 285, where there is no ongoing galaxy merger, the powerful radio source is probably having a significant effect on the energetics of the host group.

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Journal keyword(s): Galaxies: Active - X-Rays: Galaxies

Simbad objects: 67

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Number of rows : 67
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 2C 94 Sy2 01 08 52.8701830824 +13 20 14.262799812   15.19       ~ 494 2
2 3C 160 BLL 06 26 54.899870 +26 23 19.81297   19.5       ~ 26 1
3 ATO J146.9381+07.4223 Sy1 09 47 45.1433922288 +07 25 20.595729756   17.37 16.95     ~ 389 1
4 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
5 NGC 4782 rG 12 54 35.698 -12 34 06.92   13 12.75 13.11   ~ 158 2
6 3C 278 QSO 12 54 36.96 -12 33 31.8     11.6     ~ 125 3
7 2MASX J13205129+4235506 GiG 13 20 51.3095902896 +42 35 50.449484040           ~ 6 0
8 LEDA 2200733 GiG 13 20 58.8 +42 31 48           ~ 2 0
9 LEDA 2202475 GiG 13 21 03.3 +42 36 47           ~ 2 0
10 LEDA 2202189 GiG 13 21 14.0035214400 +42 35 57.532097724           ~ 5 0
11 LEDA 2202322 GiG 13 21 14.4994992816 +42 36 20.347857828           ~ 4 0
12 SDSS J132114.75+423631.1 GiG 13 21 14.7512815008 +42 36 31.105801476           ~ 3 0
13 LEDA 2202152 GiG 13 21 16.3188261240 +42 35 51.439097148           ~ 6 0
14 6C 131905+425044 Sy2 13 21 17.813 +42 35 15.38   16.86 16.23     ~ 282 1
15 2MASS J13211799+4236576 EmG 13 21 17.9878958832 +42 36 57.339348516           ~ 9 0
16 LEDA 2202104 GiG 13 21 30.20919 +42 35 44.3269           ~ 5 0
17 LEDA 2200858 GiG 13 21 31.677 +42 32 08.23           ~ 8 0
18 MAPS-NGP O-219-156725 GiG 13 21 31.9 +42 39 08           ~ 1 0
19 MAPS-NGP O-219-183438 GiG 13 21 38.7 +42 34 19           ~ 1 0
20 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
21 NGC 5171 GiG 13 29 21.5707210536 +11 44 06.389823624   14.7       ~ 61 0
22 3C 321 Sy1 15 31 43.46520 +24 04 18.9948   16.0   15.40   ~ 341 1
23 3C 401 SyG 19 40 25.116 +60 41 34.97   19.1       ~ 206 1
24 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 353 1
25 Z 428-51 AGN 22 13 55.9777143312 +13 45 19.367499060   15.4       ~ 50 0
26 2MASX J22135693+1356011 LIN 22 13 56.9422593240 +13 56 01.249236924           ~ 5 0
27 SDSS J221402.08+134424.9 BiC 22 14 02.081 +13 44 24.91           ~ 2 0
28 LEDA 3374056 EmG 22 14 04.42797 +13 46 01.2667           ~ 10 0
29 LEDA 1438267 GiG 22 14 07.7147477064 +13 42 30.732057360           ~ 3 0
30 SDSS J221413.65+135043.9 GiG 22 14 13.66 +13 50 44.0           ~ 1 0
31 2MASX J22141404+1352322 GiG 22 14 14.0247252288 +13 52 32.397698064           ~ 12 0
32 2MASS J22141410+1359012 Sy2 22 14 14.1032308920 +13 59 01.204214676   18.12 17.41     ~ 8 0
33 Z 428-54 GiG 22 14 21.7706755824 +13 57 11.249505000   15.5       ~ 33 0
34 LEDA 1438404 GiG 22 14 22.18048 +13 42 48.2763           ~ 6 0
35 LEDA 1440175 GiG 22 14 24.8082613176 +13 46 33.462508296           ~ 5 0
36 Z 428-57 LSB 22 14 31.9459365624 +13 46 21.867277620   15.7       ~ 11 0
37 SDSS J221432.20+134825.4 GiG 22 14 32.20531 +13 48 25.3390           ~ 2 0
38 LEDA 1445688 EmG 22 14 35.728 +13 58 22.66           ~ 11 0
39 SDSS J221437.44+135229.0 GiG 22 14 37.4483233272 +13 52 29.004940704           ~ 5 0
40 SDSS J221437.58+135053.0 GiG 22 14 37.58 +13 50 53.0           ~ 2 0
41 SDSS J221439.24+134920.0 GiG 22 14 39.2421304824 +13 49 20.032799988           ~ 3 0
42 2MASX J22144047+1352416 GiG 22 14 40.4447215200 +13 52 42.188610720           ~ 10 0
43 SDSS J221444.51+135836.6 GiG 22 14 44.50659 +13 58 36.7058           ~ 2 0
44 NGC 7236 LIN 22 14 44.9886363216 +13 50 47.450963760   14.3 14.3     ~ 286 1
45 LEDA 1438559 GiG 22 14 45.1089545208 +13 43 04.911697164           ~ 5 0
46 LEDA 1439348 GiG 22 14 45.8523105960 +13 44 49.869562740           ~ 3 0
47 NGC 7237 SyG 22 14 46.885 +13 50 27.13   15       ~ 100 1
48 NGC 7237C GiG 22 14 48.7871595720 +13 50 00.684321144           ~ 16 0
49 SDSS J221450.80+134051.3 GiG 22 14 50.80548 +13 40 51.4115           ~ 4 0
50 Z 428-59 LIN 22 14 51.3923195280 +13 42 54.996682968   15.7       ~ 17 0
51 SDSS J221451.49+135543.8 GiG 22 14 51.4924495656 +13 55 43.869681516           ~ 1 0
52 SDSS J221453.84+140022.2 QSO 22 14 53.8457657904 +14 00 22.342900464   18.89 18.70     ~ 27 0
53 Z 428-60 GiG 22 14 57.8745269112 +13 45 42.886299996   15.7       ~ 15 0
54 [VV2006] J221458.5+135344 QSO 22 14 58.4515484304 +13 53 44.770421544   21.64 20.65     ~ 30 0
55 LEDA 3374062 GiG 22 15 08.74 +13 58 15.1           ~ 5 0
56 BWE 2212+1307 QSO 22 15 09.3142843920 +13 22 37.202881440   19.25 19.00     ~ 41 1
57 SDSS J221509.33+134813.3 GiG 22 15 09.34 +13 48 13.4           ~ 4 0
58 LEDA 1447652 EmG 22 15 09.85149 +14 02 30.4139           ~ 8 0
59 LEDA 1437511 GiG 22 15 14.34006 +13 40 45.3692           ~ 5 0
60 LEDA 1443774 GiG 22 15 14.9250940824 +13 54 19.576116108           ~ 2 0
61 LEDA 1446931 GiG 22 15 15.54883 +14 00 59.2277           ~ 3 0
62 2MASX J22152794+1351138 GiG 22 15 27.9380821968 +13 51 14.239888380           ~ 10 0
63 SDSS J221530.82+134912.5 GiG 22 15 30.83 +13 49 12.5           ~ 1 0
64 2MASX J22154036+1352559 GiG 22 15 40.3625928456 +13 52 55.573397976           ~ 13 0
65 LEDA 1441320 GiG 22 15 42.2942703432 +13 48 55.737155412           ~ 5 0
66 NAME 3C 285 Group GrG ~ ~           ~ 1 0
67 NAME NGC 7236 Group GrG ~ ~           ~ 2 0

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