The VSOP 5 GHz continuum survey: The prelaunch VLBA observations

Citation
Eb. Fomalont et al., The VSOP 5 GHz continuum survey: The prelaunch VLBA observations, ASTROPH J S, 131(1), 2000, pp. 95-183
Citations number
83
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN journal
0067-0049 → ACNP
Volume
131
Issue
1
Year of publication
2000
Pages
95 - 183
Database
ISI
SICI code
0067-0049(200011)131:1<95:TV5GCS>2.0.ZU;2-P
Abstract
We have imaged with milliarcsecond resolution at 5 GHz 374 strong flat-spec trum radio sources north of declination -44 degrees using the VLBA in 1996 June. The source sample was compiled from the source list for the VLBI Spac e Observatory Programme (VSOP) Survey Program. About 250 of the sources obs erved with the VLBA had correlated flux densities greater than or equal to0 .3 Jy on the longest VLBA baseline and these sources are currently being ob served with VSOP at 5 GHz. This paper presents the results from the VLBA pr elaunch observations: the correlated flux density dependence with u-v dista nce; the contour display of the images; the model fit parameters for each r adio component; and improved positions for 62 sources. Comparisons and exte nsive cross-referencing with other major VLBI surveys are also given.