2002MNRAS.335.1120W

Query : 2002MNRAS.335.1120W

2002MNRAS.335.1120W - Mon. Not. R. Astron. Soc., 335, 1120-1132 (2002/October-1)

Optical spectroscopy of radio galaxies in the 7C Redshift Survey.

WILLOTT C.J., RAWLINGS S., BLUNDELL K.M., LACY M., HILL G.J. and SCOTT S.E.

Abstract (from CDS):

We present optical spectroscopy of all 49 radio galaxies in the 7C-I and 7C-II regions of the 7C Redshift Survey (7CRS). The low-frequency (151 MHz) selected 7CRS sample contains all sources with flux-densities S151 > 0.5 Jy in three regions of the sky; 7C-I and 7C-II were chosen to overlap with the 5C 6 and 5C 7 surveys, respectively, and cover a total sky area of 0.013 sr. The sample has been completely identified and spectroscopy of the quasars and broad-lined radio galaxies has been presented previously by Willott et al. Only seven of the radio galaxies do not have redshift determinations from the spectroscopy, giving a redshift completeness for the sample of >90 per cent. The median redshift of the 7CRS is 1.1. We present a composite 0.2> z < 0.8 7CRS radio galaxy spectrum and investigate the strengths of the 4000-Å breaks in these radio galaxies. We find an anti-correlation between the 4000-Å break strength and emission line luminosity, indicating that departures from old elliptical galaxy continuum shapes are most likely due to non-stellar emission associated with the active nucleus.

Abstract Copyright: RAS

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

Simbad objects: 50

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Number of rows : 50
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 B2 0206+34 rG 02 09 20.10 +34 28 35.3           ~ 9 0
2 5C 6.19 rG 02 09 36.2 +33 54 17           ~ 8 0
3 NVSS J021016+324933 rG 02 10 16.8 +32 49 34           ~ 14 1
4 5C 6.25 rG 02 10 24.2 +34 10 28           ~ 6 0
5 NVSS J021105+325644 rG 02 11 05.922 +32 56 42.63           ~ 10 1
6 NVSS J021202+340207 rG 02 12 02.52 +34 02 10.1           ~ 9 1
7 NVSS J021326+330757 Rad 02 13 26.655 +33 07 55.75           ~ 12 1
8 NVSS J021328+341821 rG 02 13 28.45 +34 18 20.0   21.0       ~ 16 1
9 NVSS J021400+302614 rG 02 14 00.726 +30 26 13.93           ~ 11 1
10 NVSS J021405+325014 Rad 02 14 06.00 +32 50 15.3           ~ 11 1
11 NVSS J021406+305347 rG 02 14 06.748 +30 53 47.12   20.0       ~ 12 1
12 NVSS J021913+341937 rG 02 19 15.50 +34 19 40.8           ~ 11 1
13 NVSS J021937+342309 rG 02 19 37.85 +34 23 09.4           ~ 17 1
14 NVSS J021948+334818 rG 02 19 48.7 +33 48 12           ~ 17 1
15 5C 6.233 rG 02 20 32.9 +29 52 06           ~ 9 0
16 B2.1 0218+30 Rad 02 21 07.8 +30 26 00           ~ 9 1
17 NVSS J022114+311705 Rad 02 21 14.45 +31 17 05.8           ~ 11 1
18 NVSS J022216+335327 rG 02 22 16.936 +33 53 26.81           ~ 9 1
19 NVSS J022303+302226 rG 02 23 03.563 +30 22 25.77   22.0       ~ 10 1
20 5C 6.279 rG 02 23 47.7 +34 15 20   17.0       ~ 10 0
21 7C 0221+3417 rG 02 24 56.12 +34 30 36.4           ~ 7 0
22 5C 6.292 rG 02 26 54.9 +34 04 36           ~ 7 0
23 NVSS J081025+265050 rG 08 10 26.048 +26 50 48.98           ~ 16 1
24 5C 7.8 rG 08 11 03.64 +28 13 53.3           ~ 7 0
25 5C 7.9 Sy2 08 11 18.085 +24 49 35.41   20.22 19.29     ~ 14 0
26 NVSS J081126+261819 rG 08 11 26.369 +26 18 15.69           ~ 11 1
27 NVSS J081219+263016 rG 08 12 19.323 +26 30 16.90           ~ 9 2
28 5C 7.23 rG 08 13 38.61 +29 16 31.0           ~ 10 0
29 NVSS J081346+275139 rG 08 13 46.171 +27 51 39.25           ~ 7 1
30 NVSS J081538+244658 rG 08 15 38.305 +24 47 00.37           ~ 9 1
31 NVSS J081631+275754 rG 08 16 31.466 +27 57 55.78           ~ 9 1
32 5C 7.79 rG 08 17 38.88 +25 00 27.5           ~ 6 0
33 5C 7.78 rG 08 17 39.75 +29 05 10.2           ~ 6 0
34 5C 7.82 rG 08 17 46.87 +29 21 50.2           ~ 10 0
35 NVSS J081852+262354 rG 08 18 52.4460990792 +26 23 54.022474500           ~ 15 1
36 NVSS J081908+261444 rG 08 19 08.411 +26 14 46.06           ~ 11 1
37 NVSS J081927+251918 rG 08 19 27.429 +25 19 19.28           ~ 11 1
38 NVSS J082023+274314 rG 08 20 23.9309467392 +27 43 07.626895536           ~ 13 1
39 NVSS J082121+251903 rG 08 21 21.2688595440 +25 19 03.075175632           ~ 19 1
40 5C 7.178 rG 08 21 49.60320 +29 22 44.5368           ~ 6 0
41 NVSS J082307+243036 rG 08 23 07.661 +24 30 35.69           ~ 9 1
42 NVSS J082317+245636 rG 08 23 17.805 +24 56 38.98           ~ 11 2
43 NVSS J082406+262811 rG 08 24 06.441 +26 28 10.86           ~ 13 1
44 5C 7.242 rG 08 25 42.69 +24 40 21.1           ~ 8 0
45 NVSS J082556+264357 rG 08 25 57.159 +26 43 56.30           ~ 15 1
46 3C 200 rG 08 27 25.38019 +29 18 44.9601   20       ~ 178 1
47 NVSS J082838+252827 rG 08 28 38.681 +25 28 27.77           ~ 21 1
48 LEDA 23785 G 08 28 43.6028056176 +24 37 22.142581860   14.93       ~ 8 0
49 NVSS J082856+243325 rG 08 28 54.9229235952 +24 33 46.793995668           ~ 5 1
50 5C 7.271 rG 08 28 59.52 +24 54 00.4           ~ 10 0

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