2004ApJ...612..729H

Query : 2004ApJ...612..729H

2004ApJ...612..729H - Astrophys. J., 612, 729-748 (2004/September-2)

The origins of X-ray emission from the hot spots of FR II radio sources.

HARDCASTLE M.J., HARRIS D.E., WORRALL D.M. and BIRKINSHAW M.

Abstract (from CDS):

We use new and archival Chandra data to investigate the X-ray emission from a large sample of compact hot spots of FR II radio galaxies and quasars from the 3C catalog. We find that only the most luminous hot spots tend to be in good agreement with the predictions of a synchrotron self-Compton model with equipartition magnetic fields. At low hot spot luminosities inverse Compton predictions are routinely exceeded by several orders of magnitude, but this is never seen in more luminous hot spots. We argue that an additional synchrotron component of the X-ray emission is present in low-luminosity hot spots and that the hot spot luminosity controls the ability of a given hot spot to produce synchrotron X-rays, probably by determining the high-energy cutoff of the electron energy spectrum. It remains plausible that all hot spots are close to the equipartition condition.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Active - Galaxies: Quasars: General - Radiation Mechanisms: Nonthermal - X-Rays: Galaxies

Simbad objects: 37

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Number of rows : 37
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 3C 6.1 BLL 00 16 31.12832880 +79 16 50.1722040   22       ~ 129 1
2 3C 9 BLL 00 20 25.2231670656 +15 40 54.774271884   17.92 17.62     ~ 347 1
3 2E 437 Sy1 01 36 24.4208152464 +20 57 27.522990972   18.15 18.10     ~ 367 2
4 ICRF J041340.3+111214 Sy2 04 13 40.34100355 +11 12 14.7860055   18.96 18.01     ~ 334 1
5 NAME Per B SyG 04 37 04.37535450 +29 40 13.8179631   21.7       ~ 533 2
6 ESO 252-18A Sy1 05 19 49.7229323856 -45 46 43.852662732   15.73 15.77 14.85   ~ 714 0
7 3C 173.1 rG 07 09 18.2015614632 +74 49 31.815420780   19.982 18.9 17.540   ~ 138 1
8 ICRF J072810.8+674847 Sy1 07 28 10.8959197752 +67 48 47.035805652     18.0     ~ 212 1
9 3C 184 rG 07 39 24.465 +70 23 10.91   21.5       ~ 140 1
10 3C 200 rG 08 27 25.38019 +29 18 44.9601   20       ~ 178 1
11 3C 207.0 Bla 08 40 47.58842599 +13 12 23.5637506   18.58 18.15 17.622   ~ 455 1
12 3C 212 QSO 08 58 41.44702653 +14 09 44.7622845   19.96 19.06     ~ 257 1
13 LB 9308 Sy1 09 06 31.8732919056 +16 46 11.785679112   18.48 18.27     ~ 303 3
14 3C 219 Sy1 09 21 08.6258123424 +45 38 57.358202856   19.56 18.69     ~ 424 2
15 3C 220.1 BLL 09 32 39.98061600 +79 06 29.9226600   20.5       ~ 138 1
16 3C 228 QSO 09 50 10.793 +14 20 00.70   21       ~ 180 2
17 3C 254 QSO 11 14 38.7251836992 +40 37 20.329281156   17.62 17.42     ~ 331 2
18 ICRF J113957.0+654749 Sy1 11 39 57.0254367168 +65 47 49.483232880   16.50 16.32     ~ 528 1
19 3C 265.0 Sy1 11 45 28.95577 +31 33 47.2434   20.0       ~ 250 1
20 ICRF J124357.6+162253 Sy1 12 43 57.6491122968 +16 22 53.395049244   19.23 19.00     ~ 321 1
21 7C 125441.29+473632.00 SyG 12 56 57.485 +47 20 20.23   22.0       ~ 285 1
22 3C 281 Sy1 13 07 53.9295304872 +06 42 13.877755920   17.15 17.02     ~ 146 3
23 3C 294 rG 14 06 44.317 +34 11 30.19           ~ 234 1
24 3C 295 Sy1 14 11 20.6 +52 12 09   22.34 20.80 18.54   ~ 1021 4
25 ICRF J144302.7+520137 Sy1 14 43 02.76069031 +52 01 37.2985156   18.96 18.29     ~ 316 3
26 3C 321 Sy1 15 31 43.46520 +24 04 18.9948   16.0   15.40   ~ 341 1
27 3C 324.0 Sy1 15 49 49.170 +21 25 39.50   21.5       ~ 312 1
28 NAME 3C 330G2 Sy2 16 09 34.92456720 +65 56 37.8351240   20.33       ~ 280 1
29 2E 3648 Sy1 16 20 21.8185395384 +17 36 23.952361176   16.53 16.41 20.5   ~ 425 2
30 8C 1704+608 Bla 17 04 41.3742408840 +60 44 30.520617000   15.65 15.40 15.30   ~ 782 1
31 3C 390.3 Bla 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1381 1
32 3C 401 SyG 19 40 25.116 +60 41 34.97   19.1       ~ 206 1
33 3C 403.0 Sy2 19 52 15.7996999344 +02 30 24.238200816   15.42 16.5     ~ 353 1
34 MCG+07-41-003 Bla 19 59 28.35656837 +40 44 02.0972325   16.22 15.10     ~ 2537 2
35 3C 427.1 rG 21 04 06.87480 +76 33 10.2231   23.3 21.1     ~ 157 1
36 2C 1820 SyG 21 55 52.324 +38 00 28.51   19.20       ~ 234 1
37 3C 452 Sy2 22 45 48.7616172744 +39 41 15.906782184   17.60 16.56     ~ 391 1

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