1999MNRAS.307..420L


C.D.S. - SIMBAD4 rel 1.7 - 2020.06.02CEST10:50:28

1999MNRAS.307..420L - Mon. Not. R. Astron. Soc., 307, 420-432 (1999/August-1)

Radio-optical alignments in a low radio luminosity sample.

LACY M., RIDGWAY S.E., WOLD M., LILJE P.B. and RAWLINGS S.

Abstract (from CDS):

We present an optically based study of the alignment between the radio axes and the optical major axes of eight z∼0.7 radio galaxies in a 7C sample. The radio galaxies in this sample are ~20 times less radio-luminous than 3C galaxies at the same redshift, and are significantly less radio-luminous than any other well-defined samples studied to date. Using Nordic Optical Telescope images taken in good seeing conditions at rest frame wavelengths just longward of the 4000-Å break, we find a statistically significant alignment effect in the 7C sample. Furthermore, in two cases where the aligned components are well separated from the host we have been able to confirm spectroscopically that they are indeed at the same redshift as the radio galaxy. However, a quantitative analysis of the alignment in this sample and in a corresponding 3C sample from HST archival data indicates that the percentage of aligned flux may be lower and of smaller spatial scale in the 7C sample. Our study suggests that alignments on the 50-kpc scale are probably closely related to the radio luminosity, whereas those on the 15-kpc scale are not. We discuss these results in the context of popular models for the alignment effect.

Abstract Copyright: 1999, Royal Astronomical Society

Journal keyword(s): galaxies: active - galaxies: evolution - radio continuum: galaxies

Status at CDS:  

Simbad objects: 35

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Number of rows : 35

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 3C 34.0 rG 01 10 18.60 +31 47 20.0   21       ~ 160 2
2 NGC 547 GiP 01 26 00.577 -01 20 42.43   13.16 13.34     ~ 316 3
3 3C 41.0 rG 01 26 44.30 +33 13 11.0   21       ~ 156 1
4 3C 55.0 rG 01 57 10.7 +28 51 40   20.8       ~ 144 1
5 3C 114 rG 04 20 22.10 +17 53 54.0   22       ~ 68 2
6 3C 171.0 Sy2 06 55 14.7 +54 08 59   19.94 19.08     ~ 238 0
7 3C 172 rG 07 02 08.31 +25 13 53.5   20.5       ~ 114 0
8 3C 212 QSO 08 58 41.4470080028 +14 09 44.771073264   19.96 19.06     ~ 231 1
9 3C 226.0 Sy1 09 44 16.5 +09 46 16   19.5       ~ 123 2
10 3C 228 rG 09 50 10.7 +14 19 58   21       ~ 157 2
11 3C 247 QSO 10 58 58.70 +43 01 23.0   21.5       ~ 152 1
12 3C 265.0 Sy1 11 45 29.0 +31 33 50   20.0       ~ 237 0
13 3C 277.2 Sy1 12 53 33.3 +15 42 31   21.5       ~ 145 0
14 2MASX J13211781+4235153 Sy2 13 21 17.813 +42 35 15.38   16.86 16.23     ~ 253 0
15 ACO 1795 ClG 13 49 00.5 +26 35 07           ~ 1150 0
16 3C 324.0 Sy1 15 49 48.9 +21 25 38   21.5       ~ 300 0
17 3C 337 QSO 16 28 53.9 +44 19 03   20.0       ~ 138 1
18 3C 340 rG 16 29 37.9 +23 20 14   22       ~ 120 1
19 3C 352 rG 17 10 44.1001 +46 01 29.834   22.8       ~ 137 1
20 WSTB 53W91 rG 17 22 32.73 +50 06 01.9           ~ 78 0
21 3C 356 QSO 17 24 20.2 +50 57 14   21.5 21.5     ~ 216 1
22 87GB 174504.4+641541 Sy2 17 45 22.9 +64 14 24           ~ 13 1
23 7C 174843.60+673125.00 G 17 48 43.242 +67 30 45.20           ~ 7 0
24 NVSS J175539+683036 Rad 17 55 38.00 +68 32 12.9           ~ 10 1
25 NVSS J175824+653537 Rad 17 58 18.20 +65 35 09.5           ~ 10 1
26 3C 368.0 rG 18 05 06.30 +11 01 32.0   21.5       ~ 241 1
27 7C 180706.40+683110.00 G 18 06 50.20 +68 31 40.0           ~ 13 1
28 7C 180747.20+684125.00 G 18 07 29.90 +68 41 55.1           ~ 10 1
29 7C 1815+6815 Rad 18 15 28.932 +68 18 33.00           ~ 8 0
30 7C 182631.60+651044.00 G 18 26 41.20 +65 12 43.0           ~ 10 1
31 VSOP J2129+0733 rG 21 29 05.37 +07 32 58.6   21       ~ 26 1
32 ESO 75-41 Sy1 21 57 05.9778792382 -69 41 23.684746870   14.23 13.79 12.94   ~ 236 1
33 3C 441 rG 22 06 04.90 +29 29 20.0   21.0       ~ 185 3
34 LEDA 2831507 Sy2 22 53 03.1 -40 57 46     20.0     ~ 96 1
35 ACO 2597 ClG 23 25 19.70 -12 07 27.7           ~ 490 0

    Equat.    Gal    SGal    Ecl

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2020.06.02-10:50:28

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