1994A&AS..104..503C

Query : 1994A&AS..104..503C

1994A&AS..104..503C - Astron. Astrophys., Suppl. Ser., 104, 503-507 (1994/May-1)

Optical astrometry of Benchmark radio sources. II. Positions of 29 compact extragalactic radio sources with respect to the International Reference Stars catalogue.

COSTA E. and LOYOLA P.

Abstract (from CDS):

Optical positions, relative to the newly available International Reference Stars catalogue (IRS) have been obtained for the optical counterparts of 29 compact extragalactic radio sources south of δ≃+12deg ; Most of these sources have been selected by IAU Commission 24 to be used as Benchmark objects for the establishment of a high-precision radio/optical reference frame. Precision levels better than 0.2" in both coordinates were achieved. Comparisons with independent optical surveys and with VLBI radio positions available for these sources are presented. The use of the IRS catalogue is strongly supported.

Abstract Copyright: ∼

Journal keyword(s): astrometry - reference systems - radio continuum: galaxies

Simbad objects: 29

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Number of rows : 29
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 QSO B0019+058 BLL 00 22 32.44121084 +06 08 04.2689202   19.2   19.07   ~ 133 1
2 4C 06.11 QSO 02 24 28.42818961 +06 59 23.3415566   20.8 20.0 17.78   ~ 158 1
3 ICRF J023945.4-023440 Sy1 02 39 45.47227239 -02 34 40.9145702   19.5 21 19.04   ~ 134 1
4 QSO B0256+075 QSO 02 59 27.07662321 +07 47 39.6429924   18 18 16.9   ~ 192 1
5 QSO B0414-189 QSO 04 16 36.54444889 -18 51 08.3402457   18.89 18.0 18.51   ~ 175 1
6 QSO B0434-188 QSO 04 37 01.48273617 -18 44 48.6135530   19.11 19.0 19.62   ~ 105 1
7 QSO B0511-220 QSO 05 13 49.11432318 -21 59 16.0921220   19.95 19.5 19.58   ~ 103 1
8 QSO B0537-158 QSO 05 39 32.0101889928 -15 50 30.319813320   16.5 18.0     ~ 72 1
9 QSO J0635-7516 Bla 06 35 46.5079301472 -75 16 16.816418256   15.96 15.75 15.82   ~ 589 1
10 QSO J0743-6726 QSO 07 43 31.6117092000 -67 26 25.547011008   16.71 16.37     ~ 146 1
11 QSO B0748+126 QSO 07 50 52.04573865 +12 31 04.8282079   17.67 17.28 17.16   ~ 334 1
12 QSO B0805-077 QSO 08 08 15.53603763 -07 51 09.8865298     19.80 16.71   ~ 262 1
13 ICRF J092751.8-203451 Sy1 09 27 51.82432394 -20 34 51.2325545   16.59 16.40 16.00   ~ 166 1
14 4C 12.39 Bla 11 18 57.30143432 +12 34 41.7179609   19.39 19.25 19.10   ~ 258 1
15 [VV2006] J113320.1+004052 QSO 11 33 20.05579109 +00 40 52.8371482   18.5   18.88   ~ 69 2
16 QSO B1236+077 QSO 12 39 24.58833099 +07 30 17.1890748   19.1 20.1 17.92   ~ 132 1
17 QSO B1252+119 Bla 12 54 38.25561478 +11 41 05.8950431   16.99 16.64 16.76   ~ 272 1
18 3C 283 rG 13 11 39.3 -22 16 41   20       ~ 91 1
19 QSO B1313-333 QSO 13 16 07.98594757 -33 38 59.1726741   18.04 20.0 17.23   ~ 253 1
20 ICRF J134733.3+121724 Sy2 13 47 33.36161873 +12 17 24.2398927   19.28 18.44 15.718   ~ 597 3
21 ICRF J135256.5-441240 BLL 13 52 56.53494646 -44 12 40.3876155   16.95 16.37     ~ 120 3
22 3C 298.0 QSO 14 19 08.1802187928 +06 28 34.802854680   17.12 16.79     ~ 407 1
23 QSO J1430+1043 QSO 14 30 09.73880343 +10 43 26.8623079     18.5 18.67   ~ 91 1
24 QSO B1610-771 QSO 16 17 49.27644414 -77 17 18.4675417   19.19 19.0 17.32   ~ 163 1
25 4C 09.57 BLL 17 51 32.81857326 +09 39 00.7284066   17.46 16.78 15.57   ~ 945 1
26 ICRF J193925.0-634245 Sy2 19 39 25.0245304992 -63 42 45.640373400   18.87 18.37 17.64   ~ 1225 1
27 QSO B2144+093 QSO 21 47 10.16296704 +09 29 46.6722487   18.72 18.54 16.51   ~ 206 1
28 3C 446 BLL 22 25 47.25929101 -04 57 01.3907626   18.83 18.39 16.3   ~ 830 1
29 4C 10.73 Bla 23 30 40.85224854 +11 00 18.7096490     18.1 18.23   ~ 176 1

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