Arcsecond positions for milliarcsecond VLBI nuclei of extragalactic radio sources. II. 207 sources.
Abstract
Time delay and fringe frequency measurements at 2.29 GHz have been obtained with VLBI on baselines of about 10,000 km, in order to determine the positions of milliarcsec nuclei in 207 extragalactic radio sources. Accuracy ranges are estimated to lie between 0.1 and 1.0 arcsec in both right ascension and declination, with all sources having uncertainties of less than 4 arcsec in both coordinates. These sources constitute part of an all-sky VLBI catalog of milliarcsec radio sources, for 752 of which arcsec positions have thus far been determined.
- Publication:
-
The Astronomical Journal
- Pub Date:
- August 1983
- DOI:
- 10.1086/113403
- Bibcode:
- 1983AJ.....88.1138M
- Keywords:
-
- Astrometry;
- Extragalactic Radio Sources;
- Very Long Base Interferometry;
- Astronomical Catalogs;
- Astronomical Coordinates;
- Astronomy