CDS

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 - 2023 		#notes
1 6C 001403+811827 BLL 00 17 08.47489694 +81 35 08.1365094   17.60 16.52 15.95   ~ 384 1
2 QSO B0016+73 QSO 00 19 45.78637230 +73 27 30.0176020     19.00 18.26   ~ 292 1
3 QSO B0048-09 BLL 00 50 41.3172421464 -09 29 05.210474100 16.74 16.39 16.22 16.14   ~ 447 2
4 4C 01.02 Bla 01 08 38.77110544 +01 35 00.3171844   18.54 18.39 19.05   ~ 523 1
5 QSO J0115-0127 QSO 01 15 17.09995153 -01 27 04.5772562   17 17.235 17.81   ~ 222 1
6 QSO B0119+041 Bla 01 21 56.86169274 +04 22 24.7342932   19.2 19.5 19.40   ~ 185 1
7 6C 013354+473615 Bla 01 36 58.59480326 +47 51 29.1000720     19.50 19.25 15.21 ~ 484 1
8 QSO B0149+218 QSO 01 52 18.05904204 +22 07 07.6997943     18 18.89   ~ 162 1
9 6C 015907+721900 BLL 02 03 33.38495695 +72 32 53.6673482     19.2 15.90   ~ 85 1
10 QSO B0201+113 QSO 02 03 46.65705710 +11 34 45.4094619   19.5 19.5 19.41   ~ 202 1
11 4C 15.05 Bla 02 04 50.41389294 +15 14 11.0436097   21.9 21.00 21.00   ~ 397 1
12 7C 020209.69+315812.00 QSO 02 05 04.92536206 +32 12 30.0954703     17.40 17.40   ~ 216 1
13 6C 021252+733537 BLL 02 17 30.81335327 +73 49 32.6217355     19.00 18.97   ~ 439 1
14 4C 67.05 QSO 02 28 50.05148365 +67 21 03.0293322   19.5 19.50 18.1   ~ 247 1
15 4C 13.14 Bla 02 31 45.89405619 +13 22 54.7162847   17.96 17.71 17.93   ~ 275 1
16 4C 28.07 QSO 02 37 52.40567519 +28 48 08.9899986     19.30 16.99   ~ 585 1
17 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1506 2
18 QSO B0256+075 QSO 02 59 27.07662321 +07 47 39.6429924   18 18 16.9   ~ 179 1
19 4C 47.08 BLL 03 03 35.24221958 +47 16 16.2754726   17.54 16.95 16.2   ~ 262 1
20 QSO B0336-0156 QSO 03 39 30.93778633 -01 46 35.8041892   18.96 18.41 17.33   ~ 540 1
21 QSO B0400+258 QSO 04 03 05.58608082 +26 00 01.5027775     18 19.00   ~ 200 1
22 QSO B0406+121 BLL 04 09 22.00871072 +12 17 39.8476330   20.5   18.27   ~ 105 1
23 QSO B0420-0127 QSO 04 23 15.80072217 -01 20 33.0656073   17.50 17.00 16.28   ~ 1174 3
24 4C 41.11 QSO 04 23 56.00979158 +41 50 02.7129362   19   19.2   ~ 100 2
25 QSO J0457-2324 QSO 04 57 03.1791422424 -23 24 52.021129572   18.85 18.5 16.56   ~ 380 1
26 4C -02.19 QSO 05 01 12.80988538 -01 59 14.2564557   19.1 18.06 19.04   ~ 569 1
27 QSO J0530+13 Bla 05 30 56.41674741 +13 31 55.1494688     20.00 19.35   ~ 939 1
28 7C 055201.39+394824.00 QSO 05 55 30.80561419 +39 48 49.1649683     18.30 17.5   ~ 498 2
29 QSO B0605-0834 BLL 06 07 59.69924014 -08 34 49.9783246     17.60 17.70   ~ 440 1
30 ICRF J070001.5+170921 QSO 07 00 01.52554306 +17 09 21.7013068   21.0       ~ 68 1
31 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1263 1
32 QSO B0723-007 BLL 07 25 50.63991258 -00 54 56.5430511   17.39 16.57 15.82   ~ 253 1
33 QSO J0730-116 QSO 07 30 19.11247452 -11 41 12.6006642     20.30 20.3   ~ 290 1
34 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 968 1
35 QSO B0742+103 QSO 07 45 33.05952486 +10 11 12.6922178     24.00 23.72   ~ 190 1
36 4C -00.28 QSO 07 45 54.08232685 -00 44 17.5399048   18 17.1 16.69   ~ 189 1
37 QSO B0745+241 QSO 07 48 36.10928140 +24 00 24.1099425   19.70 18.89 17.88   ~ 203 1
38 QSO B0805-077 QSO 08 08 15.53603763 -07 51 09.8865298     19.80 16.71   ~ 250 1
39 7C 081451.89+423206.00 BLL 08 18 15.99961476 +42 22 45.4148987   18.88 18.18 17.81   ~ 388 1
40 QSO B0823+033 BLL 08 25 50.33835759 +03 09 24.5199749   17.81 17.23 16.91   ~ 317 1
41 6C 082850+492334 BLL 08 32 23.21674252 +49 13 21.0382979   20.17 19.63     ~ 162 1
42 QSO J0854+2006 BLL 08 54 48.8749846272 +20 06 30.639583620   15.91 15.43 15.56   ~ 2275 1
43 4C 47.29 QSO 09 03 03.99010563 +46 51 04.1374172   19.90 19.44 18.7   ~ 251 1
44 QSO B0919-260 QSO 09 21 29.35386197 -26 18 43.3863288   18.46 18.41 18.01   ~ 133 1
45 QSO B0920-397 Bla 09 22 46.41826886 -39 59 35.0682386   18.12 18.8     ~ 121 1
46 ICRF J092703.0+390220 Sy1 09 27 03.01394144 +39 02 20.8518067   17.17 17.00 16.486   ~ 984 1
47 ICRF J095649.8+251516 Sy1 09 56 49.87537985 +25 15 16.0498155   17.46 17.21 17.96   ~ 313 1
48 4C 06.41 BLL 10 41 17.16249940 +06 10 16.9237327   16.86 16.70 16.14   ~ 306 1
49 4C 12.37 QSO 10 42 44.6052783816 +12 03 31.263917976   18.03 17.77     ~ 433 2
50 6C 103912+811006 QSO 10 44 23.06257022 +80 54 39.4430485     16.5 18.29   ~ 201 1
51 4C 01.28 BLL 10 58 29.60520810 +01 33 58.8237454   18.74 18.28 16.68   ~ 749 2
52 4C 12.39 Bla 11 18 57.30143432 +12 34 41.7179609   19.39 19.25 19.10   ~ 252 1
53 CTD 74 Bla 11 25 53.71191677 +26 10 19.9787016   18.62 18.51 18.39   ~ 143 1
54 7C 112812.59+383153.00 QSO 11 30 53.28261620 +38 15 18.5469361   19.11 18.80 19.42   ~ 198 1
55 6C 114419+401458 QSO 11 46 58.29791724 +39 58 34.3043988   18.80 18.45 18.58   ~ 213 1
56 4C -00.47 QSO 11 50 43.8706351104 -00 23 54.203006868   17.51 17.38 17.1   ~ 362 1
57 8C 1150+812 QSO 11 53 12.49922322 +80 58 29.1545718     19.40 18.54   ~ 234 1
58 Ton 599 QSO 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 899 1
59 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 846 1
60 4C 03.23 QSO 12 24 52.42194302 +03 30 50.2927775   19.02 18.77 18.9   ~ 141 1
61 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7017 3
62 QSO J1246-0730 QSO 12 46 04.23211565 -07 30 46.5746985   17.6 18.0 18.2   ~ 184 1
63 7C 1308+3236 BLL 13 10 28.66385420 +32 20 43.7828340   15.61 15.24 17.91   ~ 827 1
64 7C 134218.60+661725.00 QSO 13 43 45.95958219 +66 02 25.7451139   19.93 19.67 18.87   ~ 71 1
65 [OKM2018] SWIFT J1357.0+1929 Sy1 13 57 04.4366598768 +19 19 07.371837768   16.33 16.03 15.3   ~ 449 2
66 QSO B1404+286 BLL 14 07 00.39441712 +28 27 14.6901341   16.13 15.35 10.29   ~ 753 2
67 6C 141804+543700 BLL 14 19 46.5974051952 +54 23 14.787857796   16.17 15.65 14.16   ~ 576 1
68 QSO B1502+1041 Bla 15 04 24.97978391 +10 29 39.1985309   18.97 18.56 18.94   ~ 545 1
69 QSO J1512-0906 Bla 15 12 50.53293048 -09 05 59.8297908   16.74 16.54     ~ 1282 1
70 QSO B1514-24 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 740 3
71 4C 14.60 BLL 15 40 49.49151924 +14 47 45.8846989   17.72 17.30 17.240   ~ 404 1
72 4C 05.64 QSO 15 50 35.26924234 +05 27 10.4483641   19.10 18.73 19.02   ~ 322 1
73 QSO B1555+001 QSO 15 57 51.43397121 -00 01 50.4137827   20.10 19.72 18.75   ~ 176 1
74 4C 10.45 QSO 16 08 46.20318700 +10 29 07.7757424   18.5 18.70 18.03   ~ 367 1
75 6C 161147+342017 QSO 16 13 41.06424322 +34 12 47.9088535   17.98 17.46 17.07   ~ 621 1
76 QSO B1614+051 QSO 16 16 37.55681923 +04 59 32.7365717   19.60 19.17 19.49   ~ 186 2
77 4C 41.32 QSO 16 25 57.66971273 +41 34 40.6292008     22 21.73   ~ 163 1
78 4C 38.41 QSO 16 35 15.49297809 +38 08 04.5005995   18.14 17.97 17.25   ~ 830 1
79 ICRF J163813.4+572023 Sy1 16 38 13.45629995 +57 20 23.9789828     16.90 16.94   ~ 344 1
80 6C 163852+395305 QSO 16 40 29.63277140 +39 46 46.0284071   18.4 19.37 18.75   ~ 300 2
81 4C 69.21 QSO 16 42 07.84851261 +68 56 39.7563611   19.723   19.219   ~ 299 1
82 QSO J1658+0515 QSO 16 58 33.4471896264 +05 15 16.442476596   17.00 16.54 16.21   ~ 225 1
83 QSO B1730-130 QSO 17 33 02.70578907 -13 04 49.5482119   18 19.50 18.78 17.39 ~ 1107 1
84 7C 173836.20+473929.00 BLL 17 39 57.12907095 +47 37 58.3614787   18.5 19.5 18.88   ~ 123 1
85 4C 51.37 Bla 17 40 36.97784792 +52 11 43.4073694   18.16 18.70 16.73   ~ 397 1
86 QSO B1741-038 QSO 17 43 58.85613537 -03 50 04.6167326     20.40 17.98   ~ 526 1
87 4C 09.57 BLL 17 51 32.81857326 +09 39 00.7284066   17.46 16.78 15.57   ~ 916 1
88 QSO J1753+2848 QSO 17 53 42.47364223 +28 48 04.9388788   19.6 19.60 20.28   ~ 104 1
89 8C 1803+784 BLL 18 00 45.6838528560 +78 28 04.018028016   16.4 15.90 15.46   ~ 717 1
90 3C 371 BLL 18 06 50.6802916920 +69 49 28.109609256   14.77 14.22 11.39   ~ 836 2
91 QSO J1824+1044 Bla 18 24 02.85524975 +10 44 23.7739493   17.66 17.27 16.71   ~ 172 1
92 ICRF J192559.6+210626 BLL 19 25 59.60535459 +21 06 26.1620257           ~ 198 1
93 QSO B1954+513 QSO 19 55 42.73825546 +51 31 48.5461173     18.5 17.34   ~ 233 1
94 QSO B1958-179 QSO 20 00 57.09043927 -17 48 57.6726139   18.02 18.60 15.33   ~ 252 1
95 4C 74.25 QSO 20 17 13.07929657 +74 40 47.9999016     18.1     ~ 55 1
96 ICRF J202206.6+613658 Sy2 20 22 06.68174620 +61 36 58.8047323     19.00 17.58   ~ 315 1
97 QSO B2029+121 BLL 20 31 54.99426552 +12 19 41.3401260     18.5 17.42   ~ 152 1
98 3C 418.0 QSO 20 38 37.03472279 +51 19 12.6624988   21.30 21.00 18.9   ~ 298 0
99 QSO J2115+295 QSO 21 15 29.41345155 +29 33 38.3669390     19.5 19.26   ~ 161 1
100 QSO J2123+0535 QSO 21 23 44.51739933 +05 35 22.0930238   18.3 20.40 19.86   ~ 281 1
101 QSO B2128-123 BLL 21 31 35.2617909696 -12 07 04.795364172   16.33 16.11 15.87   ~ 451 1
102 4C -02.81 BLL 21 34 10.30958988 -01 53 17.2389056   18.6 19.00 18.87   ~ 367 1
103 QSO B2144+093 QSO 21 47 10.16296704 +09 29 46.6722487   18.72 18.54 16.51   ~ 196 1
104 4C 06.69 QSO 21 48 05.45866779 +06 57 38.6041877   16.85 16.47 15.06   ~ 653 1
105 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2215 1
106 4C -03.79 QSO 22 18 52.03772044 -03 35 36.8795441   16.93 16.38 16.15   ~ 337 1
107 QSO B2227-0848 QSO 22 29 40.08433313 -08 32 54.4355294   17.80 17.41 17.81   ~ 337 1
108 4C 11.69 QSO 22 32 36.40890093 +11 43 50.9040592   17.75 17.33     ~ 1090 2
109 QSO B2232+282 BLL 22 36 22.47084387 +28 28 57.4132050   19.1 19.0 17.60   ~ 250 1
110 QSO J2246-1206 QSO 22 46 18.23197022 -12 06 51.2775983   16.63 16.45 15.99   ~ 279 1
111 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 2783 2
112 B2 2319+27 QSO 23 21 59.86222252 +27 32 46.4436999   19 19.0 18.8   ~ 133 1
113 4C 10.73 Bla 23 30 40.85224854 +11 00 18.7096490     18.1 18.23   ~ 164 1
114 ICRF J234636.8+093045 Sy1 23 46 36.8384562240 +09 30 45.514903032   16.23 15.97 15.99   ~ 318 2
115 4C 45.51 QSO 23 54 21.68022501 +45 53 04.2365520   20.6 20.60 19.1   ~ 218 1

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2023.09.21-20:24:49

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