1998A&AS..131..259C

Query : 1998A&AS..131..259C

1998A&AS..131..259C - Astron. Astrophys., Suppl. Ser., 131, 259-263 (1998/August-0)

Optical positions of compact extragalactic radio sources with respect to the Hipparcos Catalogue.

COSTA E. and LOYOLA P.

Abstract (from CDS):

Optical positions relative to the Hipparcos Catalogue, and therefore within the International Celestial Reference System (ICRS), have been obtained for the optical counterparts of 25 compact extragalactic radio sources (CERS) south of δ~+10°. Most of these sources are being monitored as Benchmark objects for the establishment of a unified extragalactic radio/optical reference frame. Precision levels as good as 0.1" in both coordinates were achieved. A comparison with VLBI radio positions available for these sources is presented. A finding chart is given for the optical counterpart of Q 1937-101. To a limiting magnitude of B ∼20.5, no optical counterpart was found for the source 1148-671.

Abstract Copyright: ∼

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

Simbad objects: 25

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Number of rows : 25
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 B0047-5754 QSO 00 49 59.4728345616 -57 38 27.339177408   17.49 18.5 16.56   ~ 134 1
2 ICRF J020213.6-762003 Sy1 02 02 13.6936269168 -76 20 03.062287464   16.95 16.90     ~ 106 1
3 QSO B0219-637 QSO 02 20 54.1703438112 -63 30 19.387256904   18.5 18.5 19.25   ~ 27 1
4 QSO B0302-623 QSO 03 03 50.63135648 -62 11 25.5500344   19.48   17.87   ~ 148 1
5 ESO 248-6 QSO 03 17 57.67946154 -44 14 17.1632318   14.85   13.16   ~ 79 3
6 QSO B0355-669 QSO 03 55 47.8826471232 -66 45 33.817113540   17.3       ~ 33 1
7 QSO B0537-158 QSO 05 39 32.0101889928 -15 50 30.319813320   16.5 18.0     ~ 72 1
8 QSO B0622-4411 QSO 06 23 31.7861121984 -44 13 02.541931860   17.15 16.93     ~ 62 1
9 QSO B0824+110 QSO 08 27 06.51265809 +10 52 24.1524296     18.5     ~ 72 1
10 4C 11.28 QSO 08 33 14.3666430744 +11 23 36.239851104   19.5 18.50     ~ 115 1
11 QSO B0907-023 QSO 09 09 44.9240838552 -02 31 30.358736220   19.1 18.56 18.2   ~ 80 1
12 QSO B0915-213 QSO 09 17 27.0165311832 -21 31 34.467851856     18.5 17.6   ~ 44 1
13 4C 00.34 QSO 10 00 17.6727030648 +00 05 23.704002492   19.61 19.41     ~ 149 1
14 QSO B1030-357 QSO 10 33 07.6609493088 -36 01 56.813207664   20.6 20.6 18.4   ~ 47 1
15 QSO B1103-006 Sy1 11 06 31.7743074480 -00 52 52.380450264   16.39 16.46     ~ 227 1
16 QSO B1105-680 QSO 11 07 12.6951269832 -68 20 50.728576056   18.47 18.4     ~ 49 1
17 ICRF J110845.4+020240 Sy2 11 08 45.48841189 +02 02 40.9040661   19.45 18.61 16.558   ~ 64 1
18 QSO B1148-671 QSO 11 51 13.42652510 -67 28 11.0937870     19.3     ~ 31 1
19 QSO B1451-400 QSO 14 54 32.91237565 -40 12 32.5143755   19.01 18.5 17.10   ~ 62 1
20 4C 05.64 QSO 15 50 35.26924234 +05 27 10.4483641   19.10 18.73 19.02   ~ 349 1
21 ICRF J173735.7-563403 Sy2 17 37 35.7711421992 -56 34 03.153321552   17.0       ~ 91 0
22 QSO B1937-1009 BLL 19 39 57.2566747152 -10 02 41.522299692   18.800 19.0 17.188   ~ 196 1
23 QSO B2052-474 Bla 20 56 16.35980507 -47 14 47.6277179   18.29 19.1 18.07   ~ 318 1
24 QSO B2232-488 QSO 22 35 13.23657823 -48 35 58.7945202   17.61 17.2     ~ 137 1
25 QSO B2355-534 BLL 23 57 53.26605016 -53 11 13.6895021   18.63 17.8 16.89   ~ 169 1

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