THE FIRST CALTECH-JODRELL BANK VLBI SURVEY .3. VLBI AND MERLIN OBSERVATIONS AT 5 GHZ AND VLA OBSERVATIONS AT 1.4 GHZ

Citation
W. Xu et al., THE FIRST CALTECH-JODRELL BANK VLBI SURVEY .3. VLBI AND MERLIN OBSERVATIONS AT 5 GHZ AND VLA OBSERVATIONS AT 1.4 GHZ, The Astrophysical journal. Supplement series, 99(2), 1995, pp. 297-348
Citations number
26
Categorie Soggetti
Astronomy & Astrophysics
ISSN journal
00670049
Volume
99
Issue
2
Year of publication
1995
Pages
297 - 348
Database
ISI
SICI code
0067-0049(1995)99:2<297:TFCBVS>2.0.ZU;2-R
Abstract
We present the 5 GHz results from the first Caltech-Jodrell Bank (CJ1) VLBI survey. The 1.6 GHz maps were presented in two separate papers ( Polatidis et al. 1995; Thakkar et al. 1995). These three papers comple te the first stage of this program to map at both 1.6 and 5 GHz all ob jects accessible to Mark II VLBI in the complete sample of 135 objects with 1.3 > S-5GHz greater than or equal to 0.7 Jy, delta(1950) greate r than or equal to 35 degrees, and \b\ > 10 degrees. The combination o f the CJ1 sample with the Pearson-Readhead (PR) sample provides a comp lete, nux density-limited sample of 200 objects with S(5GHz)greater th an or equal to 0.7 JY, delta(1950) greater than or equal to 35 degrees , and \b\ > 10 degrees for which all of the objects accessible to Mark II VLBI have been mapped at both 5 GHz (129 objects) and 1.6 GHz (132 objects). In addition to the 5 GHz VLBI maps, we present in this pape r 5 GHz MERLIN observations of 20 objects and 1.4 GHz VLA observations of 92 objects in the combined CJ1 + PR sample. The VLA maps, together with L-band (1.3-1.7 GHz) maps available in the literature, provide a complete set of VLA maps for the combined CJ1 + PR sample. Finally, w e present the radio spectra of the objects in the CJ1 sample. The comb ined CJ1 + PR VLBI surveys provide a sample which is large enough for a number of important astrophysical and cosmological studies. These wi ll be presented in further papers in this series.