2001AJ....122.2874H


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.19CEST19:25:39

2001AJ....122.2874H - Astron. J., 122, 2874-2892 (2001/December-0)

A study of 3CR radio galaxies from z=0.15 to z=0.65. I. Evidence for an evolutionary relationship between quasars and radio galaxies.

HARVANEK M., ELLINGSON E., STOCKE J.T. and RHEE G.

Abstract (from CDS):

Deep optical images have been gathered for a nearly complete sample of radio galaxies from the Revised Third Cambridge (3CR) Catalog in the redshift range 0.15<z<0.65. Total and nuclear magnitudes and colors have been extracted. The richness of the galaxy clustering environment has also been quantified by calculating the amplitude of the galaxy-galaxy spatial covariance function (Bgg), showing overdensities ranging up to Abell class 0-1 clusters. These optical data are compared with similar data from an existing sample of radio-loud quasars in the same redshift range for the purpose of determining the relationship between radio galaxies and quasars. In the range 0.15<z<0.4, we find that quasars and radio galaxies have significantly different environments in that only radio galaxies are found in rich cluster environments. This comparison appears to rule out the hypothesis that all quasars are radio galaxies viewed from a particular angle at the 97% confidence level (99.6% confidence level if narrow-line galaxies are considered quasars). The existence of quasars in clusters at z>0.4 supports the hypothesis that some radio-loud quasars may dim with time and evolve into radio galaxies with an e-folding time of ∼0.9 Gyr. A compatible scenario is presented for this evolution in which the quasar dims because of the absence of low-velocity interactions between the quasar host and companion galaxies, which trigger quasar activity, and/or a diminishing fuel supply caused by the more effective gas ``sweeping'' of a growing intracluster medium.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Galaxies: Clusters: General - Galaxies: Evolution - Galaxies: Nuclei - Galaxies: Photometry - Galaxies: Quasars: General

Simbad objects: 80

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Number of rows : 80

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 16 rG 00 37 44.50 +13 19 55.0   21       ~ 116 3
2 ICRF J003820.5-020740 Sy1 00 38 20.5293447 -02 07 40.547054   19.04 18.02 17.6   ~ 201 1
3 3C 18.0 Sy2 00 40 50.5 +10 03 27   18.5       ~ 143 2
4 4C 32.03 rG 00 40 55.0 +33 10 07   20       ~ 135 1
5 87GB 005314.6+260945 BiC 00 55 50.583 +26 24 36.68   18.63   16.26   ~ 196 1
6 3C 42 rG 01 28 30.3 +29 02 59   20       ~ 136 1
7 3C 46 rG 01 35 25.3 +37 53 52   19.5       ~ 129 2
8 2E 437 Sy1 01 36 24.4206016519 +20 57 27.523115842   18.15 18.10     ~ 345 2
9 3C 48 QSO 01 37 41.2995845985 +33 09 35.079126038   16.62 16.20     ~ 2524 2
10 3C 49 rG 01 41 09.10 +13 53 28.0   22.327 20.920 20.876   ~ 173 1
11 3C 63 BLL 02 20 54.3164759040 -01 56 50.432576748           ~ 138 0
12 3C 61.1 Sy2 02 22 48.3 +86 18 51     19.0     ~ 182 1
13 7C 022118.10+273638.00 Sy1 02 24 12.2882485914 +27 50 11.569481672   19.502 18 18.263   ~ 204 1
14 3C 79.0 Sy2 03 10 00.0932580214 +17 05 58.593728115   19.54 18.75     ~ 243 3
15 3C 93.0 BLL 03 43 29.9960909305 +04 57 48.618679638   18.49 18.14     ~ 150 1
16 3CR 93.1 Sy2 03 48 46.9076031514 +33 53 15.460411800   20.723   19.110   ~ 126 1
17 3C 99.0 Sy2 04 01 07.6 +00 36 33   20.200 19.010 18.532   ~ 104 1
18 ICRF J041340.3+111214 Sy1 04 13 40.3410078 +11 12 14.785960   18.96 18.01     ~ 296 2
19 3C 142.1 rG 05 31 29.40 +06 30 25.0   21       ~ 81 1
20 3C 169.1 rG 06 51 15.30 +45 09 26.0   20.5       ~ 58 1
21 3C 171.0 Sy2 06 55 14.7 +54 08 59   19.94 19.08     ~ 238 0
22 3C 173.1 rG 07 09 18.124 +74 49 31.80   19.982 18.9 17.540   ~ 127 1
23 3C 196.1 AGN 08 15 27.825 -03 08 27.67   18.490 16.940 16.797   ~ 114 1
24 3C 200 rG 08 27 25.4 +29 18 45   20       ~ 164 1
25 3C 213.1 AGN 09 01 05.258 +29 01 46.93   18.84 18.08 18.600   ~ 118 1
26 LB 9308 Sy1 09 06 31.8733814507 +16 46 11.791988809   18.48 18.27     ~ 282 3
27 3C 219 Sy1 09 21 08.6263828902 +45 38 57.345842278   19.56 18.69     ~ 387 2
28 3C 220.1 rG 09 32 39.4 +79 06 30   20.5       ~ 129 1
29 3C 225 rG 09 42 15.4 +13 45 51   19 20.0     ~ 116 2
30 3C 228 rG 09 50 10.7 +14 19 58   21       ~ 157 2
31 7C 095855.89+290131.00 Sy1 10 01 49.5226070599 +28 47 08.913353395   18.21 17.27     ~ 399 1
32 3C 244.1 QSO 10 33 33.982 +58 14 35.85   19.0 19.0     ~ 175 1
33 7C 110025.60+771511.00 Sy1 11 04 13.8613944317 +76 58 58.192391742   15.70 15.72 15.40   ~ 510 1
34 3C 258 rG 11 24 43.693 +19 19 28.11   22.082 21.448 20.513   ~ 81 1
35 2E 2503 Sy1 11 39 57.0253396181 +65 47 49.482487703   16.50 16.32     ~ 491 1
36 3C 268.2 rG 12 00 59.2 +31 33 28   19       ~ 69 1
37 3C 268.3 Sy1 12 06 24.70656 +64 13 36.8760   21.847 20.790 19.910   ~ 181 1
38 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5347 1
39 3C 274.1 rG 12 35 31.00 +21 20 51.3   20       ~ 135 1
40 3C 275 rG 12 42 19.6 -04 46 20   21       ~ 113 1
41 3C 275.1 QSO 12 43 57.6490661384 +16 22 53.396063536   19.23 19.00     ~ 284 1
42 3C 277 rG 12 51 43.6 +50 34 25   21       ~ 53 1
43 2E 2879 Sy1 12 52 26.3557117356 +56 34 19.567896586   18.42 18.11 17.660   ~ 270 2
44 2MASX J13110466+2728070 Sy2 13 11 04.670 +27 28 07.24   18.93 18.00     ~ 188 1
45 ICRF J133253.2+020045 Sy1 13 32 53.2705372 +02 00 45.699205   19.08 18.49     ~ 191 1
46 3C 288 rG 13 38 49.6 +38 51 11   18.3       ~ 165 1
47 3C 295 Sy2 14 11 20.467 +52 12 09.52   22.34 20.80 18.54   ~ 903 5
48 3C 299 rG 14 21 05.6960 +41 44 49.260   20.496 19.330 18.560   ~ 176 1
49 3C 300 AGN 14 22 59.9 +19 35 37   19.66 18.73     ~ 185 2
50 8C 1443+773 Sy2 14 43 14.0 +77 07 28   19   18.730   ~ 141 1
51 3C 306.1 rG 14 55 01.4 -04 20 23   19       ~ 64 1
52 3C 313 rG 15 10 57.0 +07 51 25   21.0       ~ 98 1
53 3C 319.0 rG 15 24 05.60 +54 28 18.4   18.5       ~ 143 1
54 3C 320 QSO 15 31 25.362 +35 33 40.25   18.0       ~ 88 1
55 2MASX J15474353+2052167 Sy1 15 47 43.5377678391 +20 52 16.613895999   16.80 16.69 15.70   ~ 448 0
56 3C 327.1 Sy1 16 04 45.4065607141 +01 17 50.317968747   20.5       ~ 122 1
57 NAME 3C 330G2 Sy2 16 09 35.0 +65 56 39   20.33       ~ 253 1
58 7C 161547.29+322956.00 Sy1 16 17 42.5379079793 +32 22 34.373288602   18.25 17.45     ~ 231 1
59 2E 3648 Sy1 16 20 21.8184966430 +17 36 23.952696503   16.53 16.41 20.5   ~ 389 2
60 3C 341 rG 16 28 03.50 +27 41 36.1   19       ~ 133 1
61 3C 337 QSO 16 28 53.9 +44 19 03   20.0       ~ 138 1
62 3C 345 QSO 16 42 58.8100340220 +39 48 36.999540578   16.81 16.59 16.84   ~ 1560 2
63 2MASX J16434862+1715489 Sy2 16 43 48.605 +17 15 49.43   17.2       ~ 249 0
64 NAME Hercules A BiC 16 51 08.024 +04 59 34.91     18.25     ~ 435 1
65 3C 349 rG 16 59 32.00 +47 02 16.0   19 19.0     ~ 147 1
66 6C 170404+604844 Sy1 17 04 41.3742389551 +60 44 30.522600868   15.65 15.40 15.30   ~ 725 1
67 4C 31.47 rG 17 28 20.134 +31 46 03.01   15.5       ~ 124 1
68 3C 379.1 QSO 18 24 33.061 +74 20 58.57   18.0 18.0     ~ 83 1
69 2MASX J18334627+4727027 Sy1 18 33 46.2946109378 +47 27 02.568353862   18.64 17.24     ~ 195 1
70 3C 401 SyG 19 40 25.2 +60 41 34   19.1       ~ 194 1
71 2E 4367 Sy1 20 22 08.4405149995 +10 01 11.309490249   19.70 19.4     ~ 103 1
72 3C 427.1 rG 21 04 07.3 +76 33 08   23.3 21.1     ~ 145 1
73 3C 434 AGN 21 23 16.4 +15 48 04   20.84       ~ 57 2
74 VSOP J2129+0733 rG 21 29 05.37 +07 32 58.6   21       ~ 26 1
75 3C 436 AGN 21 44 11.720 +28 10 18.86   18.5       ~ 174 1
76 3C 455.0 Sy2 22 55 03.9 +13 13 35   19.535 19.590 19.190   ~ 188 2
77 3C 456 AGN 23 12 28.0711694296 +09 19 26.469101543   18.54       ~ 103 2
78 3C 458 rG 23 12 54.5 +05 16 24   20       ~ 84 1
79 2C 1883 Sy2 23 16 35.1925435787 +04 05 18.292942690   17.54 16.68 17.220   ~ 275 1
80 3C 460 AGN 23 21 28.4 +23 46 48   20.315   18.468   ~ 87 2

    Equat.    Gal    SGal    Ecl

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2020.10.19-19:25:39

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