1995A&A...303..276L


Query : 1995A&A...303..276L

1995A&A...303..276L - Astronomy and Astrophysics, volume 303, 276-280 (1995/11-1)

Arc length difference method in the selection of primary sources of combined extragalactic radio source catalogues.

LI J.-L. and JIN W.-J.

Abstract (from CDS):

An alternative method of selection of primary sources, the arc length difference (ALD) method, which is theoretically different from the one implemented at the International Earth Rotation Service (IERS), is proposed in this paper. Remedies are adopted in the realization of the ALD selection method according to the characteristics of arc length differences. The selection process of the 1992's primary sources is shown in detail. Statistical results for years from 1988 to 1993 are listed and some comparisons are performed. Theoretical analyses and real data tests show that the ALD selection method can highlight the characteristics of each source on the premise of the consistency of all the sources. The ALD method is a qualified one to select candidates for primary sources.

Abstract Copyright:

Journal keyword(s): astrometry - reference system - catalogs - methods: analytical - radio continuum: general

CDS comments: table 3 : object 2017+743 = 4C 74.25

Simbad objects: 115

goto View the references in ADS

Number of rows : 115
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 6C 001403+811827 BLL 00 17 08.4752241816 +81 35 08.137070016   17.60 16.52 15.95   ~ 371 1
2 QSO B0016+73 QSO 00 19 45.7863851568 +73 27 30.018073212     19.0 18.26   ~ 283 1
3 QSO B0048-09 BLL 00 50 41.3172421464 -09 29 05.210474100 16.74 16.39 16.22 16.14   ~ 434 2
4 4C 01.02 QSO 01 08 38.7711625632 +01 35 00.318640596   18.54 18.39 19.05   ~ 496 1
5 QSO B0112-0142 QSO 01 15 17.0998793424 -01 27 04.579324416   17 17.235 17.81   ~ 209 1
6 QSO B0119+041 QSO 01 21 56.8612353744 +04 22 24.734216064   19.2 19.5 19.40   ~ 176 1
7 QSO B0133+476 Bla 01 36 58.5947351640 +47 51 29.099491848     18.0 19.25 15.21 ~ 468 1
8 QSO B0149+218 QSO 01 52 18.0587265528 +22 07 07.696343460     18 18.89   ~ 150 1
9 6C 015907+721900 BLL 02 03 33.3853803168 +72 32 53.667221820     19.2 15.90   ~ 79 1
10 QSO B0201+113 QSO 02 03 46.6570697736 +11 34 45.410523492   19.5 19.5 19.41   ~ 193 1
11 4C 15.05 Bla 02 04 50.41389571 +15 14 11.0436591   21.9 22.1 21.00   ~ 383 1
12 7C 020209.69+315812.00 QSO 02 05 04.9251427344 +32 12 30.093761736     18.00 17.40   ~ 208 1
13 6C 021252+733537 BLL 02 17 30.8129232696 +73 49 32.622815712     19.0 18.97   ~ 425 1
14 4C 67.05 QSO 02 28 50.0509728096 +67 21 03.034681488   19.5   18.1   ~ 240 1
15 4C 13.14 QSO 02 31 45.8939171256 +13 22 54.713964000   17.96 17.71 17.93   ~ 262 1
16 4C 28.07 QSO 02 37 52.4057664048 +28 48 08.990026884     18.5 16.99   ~ 554 1
17 QSO B0235+1624 BLL 02 38 38.9300958576 +16 36 59.276150136   16.46 15.50 15.92   ~ 1453 2
18 QSO B0256+075 QSO 02 59 27.0767562768 +07 47 39.646138560   18 18 16.9   ~ 169 1
19 4C 47.08 BLL 03 03 35.2422414360 +47 16 16.276532592   17.54 16.95 16.2   ~ 254 1
20 QSO B0336-0156 QSO 03 39 30.9376270008 -01 46 35.803797420   18.96 18.41 17.33   ~ 525 1
21 QSO B0400+258 QSO 04 03 05.5865860680 +26 00 01.503644112     18 19.00   ~ 188 1
22 QSO B0406+121 BLL 04 09 22.0088301624 +12 17 39.857554068   20.5   18.27   ~ 102 1
23 QSO B0420-0127 QSO 04 23 15.8007747432 -01 20 33.063518580   17.50 17.00 16.28   ~ 1130 3
24 4C 41.11 QSO 04 23 56.0095667136 +41 50 02.714861652   19   19.2   ~ 92 2
25 QSO J0457-2324 QSO 04 57 03.1791422424 -23 24 52.021129572   18.85 18.5 16.56   ~ 362 1
26 4C -02.19 QSO 05 01 12.8099394264 -01 59 14.258630148   19.1 18.4 19.04   ~ 545 1
27 QSO J0530+13 Bla 05 30 56.4168902136 +13 31 55.151893344     20.0 19.35   ~ 914 1
28 7C 055201.39+394824.00 QSO 05 55 30.8055972888 +39 48 49.166341920     18.0 17.5   ~ 487 2
29 QSO B0605-0834 BLL 06 07 59.6994046176 -08 34 49.980131256     18.5 17.70   ~ 422 1
30 ICRF J070001.5+170921 QSO 07 00 01.5255517320 +17 09 21.701659860   21.0       ~ 62 1
31 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 14.17 14.27   ~ 1211 1
32 QSO B0723-007 BLL 07 25 50.6400080064 -00 54 56.546276580   17.39 16.57 15.82   ~ 237 1
33 QSO J0730-116 QSO 07 30 19.1119137384 -11 41 12.596691444     20.30 20.3   ~ 279 1
34 QSO J0738+1742 BLL 07 38 07.3935719136 +17 42 18.998218764   16.76 16.22 15.78   ~ 941 1
35 QSO B0742+103 QSO 07 45 33.05952141 +10 11 12.6923363       23.72   ~ 186 1
36 4C -00.28 QSO 07 45 54.08232111 -00 44 17.5398546   18 17.1 16.69   ~ 181 1
37 QSO B0745+241 QSO 07 48 36.1087026816 +24 00 24.109630416   19.70 18.89 17.88   ~ 191 1
38 QSO B0805-077 QSO 08 08 15.5358771816 -07 51 09.885045384     19.5 16.71   ~ 232 1
39 7C 081451.89+423206.00 BLL 08 18 15.9997819800 +42 22 45.414412572   18.88 18.18 17.81   ~ 371 1
40 QSO B0823+033 BLL 08 25 50.3384535600 +03 09 24.523229736   17.81 17.23 16.91   ~ 306 1
41 6C 082850+492334 BLL 08 32 23.2169864376 +49 13 21.037493424   20.17 19.63     ~ 157 1
42 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2169 1
43 4C 47.29 QSO 09 03 03.9901509360 +46 51 04.140636948   19.90 19.44 18.7   ~ 238 1
44 QSO B0919-260 QSO 09 21 29.3541624192 -26 18 43.387465500   18.46 18.41 18.01   ~ 127 1
45 QSO B0920-397 QSO 09 22 46.4181311352 -39 59 35.069624772   18.12 18.8     ~ 106 1
46 ICRF J092703.0+390220 Sy1 09 27 03.0138528936 +39 02 20.850343332   17.17 17.00 16.486   ~ 959 1
47 ICRF J095649.8+251516 Sy1 09 56 49.8756920040 +25 15 16.049435040   17.46 17.21 17.96   ~ 298 1
48 4C 06.41 BLL 10 41 17.1625746528 +06 10 16.926043944   16.86 16.70 16.14   ~ 290 1
49 4C 12.37 QSO 10 42 44.6052783816 +12 03 31.263917976   18.03 17.77     ~ 416 2
50 6C 103912+811006 QSO 10 44 23.0623410576 +80 54 39.445392420     16.5 18.29   ~ 192 1
51 4C 01.28 BLL 10 58 29.6054370384 +01 33 58.820502924   18.74 18.28 16.68   ~ 712 2
52 4C 12.39 QSO 11 18 57.3014979096 +12 34 41.715230196   19.39 19.25 19.10   ~ 244 1
53 CTD 74 QSO 11 25 53.7115286736 +26 10 19.978084308   18.62 18.51 18.39   ~ 136 1
54 QSO B1128+385 QSO 11 30 53.2825598016 +38 15 18.551693556   19.11 18.80 19.42   ~ 185 1
55 6C 114419+401458 QSO 11 46 58.2981358992 +39 58 34.306186476   18.80 18.45 18.58   ~ 201 1
56 4C -00.47 QSO 11 50 43.8706351104 -00 23 54.203006868   17.51 17.38 17.1   ~ 349 1
57 8C 1150+812 QSO 11 53 12.4986308136 +80 58 29.152394328     18.5 18.54   ~ 227 1
58 Ton 599 QSO 11 59 31.8338889192 +29 14 43.826803116   14.80 14.41 17.652 13.39 ~ 851 1
59 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 814 1
60 4C 03.23 QSO 12 24 52.4220395184 +03 30 50.290267176   19.02 18.77 18.9   ~ 133 1
61 M 87 BiC 12 30 49.42338230 +12 23 28.0438581 10.16 9.59 8.63   7.49 ~ 6684 3
62 QSO J1246-0730 QSO 12 46 04.2323029752 -07 30 46.575886284   17.6 18.0 18.2   ~ 175 1
63 7C 1308+3236 BLL 13 10 28.6639899312 +32 20 43.774028664   15.61 15.24 17.91   ~ 790 1
64 QSO B1342+662 QSO 13 43 45.9593930784 +66 02 25.745484228   19.93 19.67 18.87   ~ 68 1
65 ICRF J135704.4+191907 Sy1 13 57 04.4366598768 +19 19 07.371837768   16.33 16.03 15.3   ~ 428 2
66 QSO B1404+286 BLL 14 07 00.3941769384 +28 27 14.692128372   16.13 15.35 10.29   ~ 726 2
67 6C 141804+543700 BLL 14 19 46.5974051952 +54 23 14.787857796   16.17 15.65 14.16   ~ 561 1
68 QSO B1502+1041 Bla 15 04 24.9800240304 +10 29 39.197268420   18.97 18.56 18.94   ~ 510 1
69 QSO J1512-0906 Bla 15 12 50.5330369584 -09 05 59.830296360   16.74 16.54     ~ 1227 1
70 QSO B1514-24 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 702 3
71 4C 14.60 BLL 15 40 49.4896705848 +14 47 45.909368088   17.72 17.30 17.240   ~ 392 1
72 4C 05.64 QSO 15 50 35.2692689760 +05 27 10.455019380   19.10 18.73 19.02   ~ 303 1
73 QSO B1555+001 QSO 15 57 51.4338994584 -00 01 50.414034648   20.10 19.72 18.75   ~ 172 1
74 4C 10.45 QSO 16 08 46.2032041032 +10 29 07.779419592   18.5 18.0 18.03   ~ 355 1
75 6C 161147+342017 QSO 16 13 41.0642858568 +34 12 47.910181572   17.98 17.46 17.07   ~ 600 1
76 QSO B1614+051 QSO 16 16 37.5569529792 +04 59 32.744135148   19.60 19.17 19.49   ~ 180 2
77 4C 41.32 QSO 16 25 57.66971410 +41 34 40.6292986     22 21.73   ~ 161 1
78 4C 38.41 QSO 16 35 15.4928147784 +38 08 04.499799360   18.14 17.97 17.25   ~ 802 1
79 ICRF J163813.4+572023 Sy1 16 38 13.4562758136 +57 20 23.980140888     17.0 16.94   ~ 327 1
80 6C 163852+395305 QSO 16 40 29.6332404024 +39 46 46.030865700   18.4 16.5 18.75   ~ 289 2
81 4C 69.21 QSO 16 42 07.8484347528 +68 56 39.767837172   19.723   19.219   ~ 291 1
82 QSO J1658+0515 QSO 16 58 33.4471896264 +05 15 16.442476596   17.00 16.54 16.21   ~ 214 1
83 QSO B1730-130 QSO 17 33 02.7055087032 -13 04 49.545516612   18 18.5 18.78 17.39 ~ 1064 1
84 7C 173836.20+473929.00 BLL 17 39 57.1295375448 +47 37 58.356735960   18.5 19.5 18.88   ~ 114 1
85 4C 51.37 Bla 17 40 36.9781162752 +52 11 43.408067208   18.16 18.5 16.73   ~ 380 1
86 QSO B1741-038 QSO 17 43 58.8561752304 -03 50 04.618401684     18.5 17.98   ~ 508 1
87 4C 09.57 BLL 17 51 32.8186120872 +09 39 00.728629416   17.46 16.78 15.57   ~ 881 1
88 QSO J1753+2848 QSO 17 53 42.4734601920 +28 48 04.935983076   19.6   20.28   ~ 98 1
89 8C 1803+784 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 16.4 15.46   ~ 692 1
90 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 819 2
91 QSO J1824+1044 Bla 18 24 02.8552002000 +10 44 23.773545492   17.66 17.27 16.71   ~ 165 1
92 ICRF J192559.6+210626 BLL 19 25 59.60535560 +21 06 26.1620442           ~ 188 1
93 QSO B1954+513 QSO 19 55 42.7384954488 +51 31 48.542394936     18.5 17.34   ~ 227 1
94 QSO B1958-179 QSO 20 00 57.0904184064 -17 48 57.674464236   18.02 17.46 15.33   ~ 237 1
95 4C 74.25 QSO 20 17 13.0791971280 +74 40 48.003966984     18.1     ~ 53 1
96 ICRF J202206.6+613658 Sy2 20 22 06.6835988160 +61 36 58.816893852     19.5 17.58   ~ 310 1
97 QSO B2029+121 BLL 20 31 54.9939999792 +12 19 41.345344596     18.5 17.42   ~ 140 1
98 3C 418.0 QSO 20 38 37.0347144096 +51 19 12.660083976   21.30 20.00 18.9   ~ 286 0
99 QSO J2115+295 QSO 21 15 29.4133345104 +29 33 38.366174628     19.5 19.26   ~ 151 1
100 QSO J2123+0535 QSO 21 23 44.5173734952 +05 35 22.093702692   18.3 17.5 19.86   ~ 271 1
101 QSO B2128-123 BLL 21 31 35.2617909696 -12 07 04.795364172   16.33 16.11 15.87   ~ 436 1
102 4C -02.81 BLL 21 34 10.3103777568 -01 53 17.234980584   18.6 19.0 18.87   ~ 346 1
103 QSO B2144+093 QSO 21 47 10.1628820968 +09 29 46.674940992   18.72 18.54 16.51   ~ 188 1
104 4C 06.69 QSO 21 48 05.4586454304 +06 57 38.602799388   16.85 16.47 15.06   ~ 628 1
105 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2130 1
106 4C -03.79 QSO 22 18 52.0376984088 -03 35 36.879875124   16.93 16.38 16.15   ~ 323 1
107 AT20G J222940-083254 QSO 22 29 40.0843811352 -08 32 54.437624196   17.80 17.41 17.81   ~ 317 1
108 4C 11.69 QSO 22 32 36.4089639768 +11 43 50.904601176   17.75 17.33     ~ 1039 2
109 QSO B2232+282 BLL 22 36 22.4708346336 +28 28 57.411659856   19.1 19.0 17.60   ~ 235 1
110 QSO J2246-1206 QSO 22 46 18.2322488304 -12 06 51.278055084   16.63 16.45 15.99   ~ 270 1
111 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 2675 2
112 B2 2319+27 QSO 23 21 59.8620449256 +27 32 46.446347400   19 19.0 18.8   ~ 122 1
113 4C 10.73 QSO 23 30 40.8528046392 +11 00 18.712706256     18.1 18.23   ~ 157 1
114 ICRF J234636.8+093045 Sy1 23 46 36.8384562240 +09 30 45.514903032   16.23 15.97 15.99   ~ 312 2
115 4C 45.51 QSO 23 54 21.6801097296 +45 53 04.219359180   20.6 20.6 19.1   ~ 208 1

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2022.07.06-17:56:37

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