2000A&A...364..501D


Query : 2000A&A...364..501D

2000A&A...364..501D - Astronomy and Astrophysics, volume 364501-516 (2000/12-2)

On the viewing angle to broad-lined radio galaxies.

DENNETT-THORPE J., BARTHEL P.D. and VAN BEMMEL I.M.

Abstract (from CDS):

We address the nature of broad-lined radio galaxies, in particular their radio axis orientation, using new, matched resolution, dual frequency radio observations of a sample of twelve nearby broad-lined extragalactic 3C objects. Radio spectral index and depolarisation asymmetries indicate that these objects have a preferred orientation with respect to the observer. In addition, the spectral asymmetries are suggestive of lower Doppler factors in the broad-lined radio galaxies when compared to 3C quasars. This is in agreement with their optical properties, and leads to the conclusion that some objects are lower powered versions - at similar lines of sight - of the more distant quasars, whereas others are at larger angles to the line of sight.

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Journal keyword(s):

Simbad objects: 18

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Number of rows : 18
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 ICRF J003820.5-020740 Sy1 00 38 20.52934376 -02 07 40.5469964   19.04 18.02 17.6   ~ 255 1
2 8C 0106+729 Sy1 01 09 44.2610635193 +73 11 57.121454897   19.5       ~ 155 1
3 3C 61.1 Sy2 02 23 13.4857575951 +86 19 13.422392083     19.0     ~ 210 1
4 3C 93.0 BLL 03 43 29.9963486496 +04 57 48.612170988   18.49 18.14     ~ 155 1
5 ICRF J041340.3+111214 Sy2 04 13 40.34100355 +11 12 14.7860055   18.96 18.01     ~ 334 1
6 3C 206 Sy1 08 39 50.5829445936 -12 14 34.327188564   15.78 15.76     ~ 254 1
7 3C 219 Sy1 09 21 08.6258123424 +45 38 57.358202856   19.56 18.69     ~ 424 2
8 7C 095855.9+290131 Sy2 10 01 49.5227371368 +28 47 08.943487440   18.21 17.27     ~ 447 1
9 3C 246 Sy1 10 51 29.9161672920 -09 18 10.191977064   16.85 16.79 16.5   ~ 197 1
10 [OKM2018] SWIFT J1104.8+7689 Sy1 11 04 13.8611496720 +76 58 58.194549084   15.70 15.72 15.40   ~ 564 1
11 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 6022 1
12 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
13 ICRF J133253.2+020045 Sy1 13 32 53.27053616 +02 00 45.6991690   19.08 18.49     ~ 219 1
14 ICRF J154743.5+205216 Sy1 15 47 43.5376371336 +20 52 16.612810320   16.80 16.69 15.70   ~ 521 1
15 3C 332.0 Sy1 16 17 42.5380089648 +32 22 34.372277976   18.25 17.45     ~ 268 1
16 3C 381.0 Sy2 18 33 46.2946146576 +47 27 02.566037088   18.64 17.24     ~ 209 1
17 Z 173-14 Sy1 18 35 03.3896172576 +32 41 46.855964616   16.50 15.39 10.50   ~ 688 1
18 3C 390.3 Bla 18 42 08.9904975672 +79 46 17.127835104   16.06 15.38     ~ 1381 1

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