Astronomy and Astrophysics – Astrophysics
Scientific paper
1997-10-24
IAU Coll. 164, ed Zensus et al, ASP Conf Series 144, 17-24 (1998)
Astronomy and Astrophysics
Astrophysics
8 pages; 1 figure; to be published in Proceedings of IAU Colloquium 164, Radio Emission from Galactic and Extragalactic Compac
Scientific paper
The Caltech-Jodrell Bank VLBI surveys of bright extragalactic radio sources north of declination 35 deg were carried out between 1990 and 1995 using the Mark-II system, achieving images with a resolution of about 1 mas at 5 GHz. The CJ1 survey (together with the older `PR' survey) includes 200 objects with 5 GHz flux density greater than 0.7 Jy; the CJ2 survey includes 193 flat-spectrum sources with 5 GHz flux density greater than 0.35 Jy; and we have defined a complete flux-density limited sample, CJF, of 293 flat-spectrum sources stronger than 0.35 Jy. We summarize the definition of the samples and the VLBI, VLA, MERLIN, and optical observations, and present some highlights of the astrophysical results. These include: (1) superluminal motion and cosmology; (2) morphology and evolution of the `compact symmetric objects' (CSOs); (3) two-sided motion in some CSOs; (4) the angular-size - redshift diagram; (5) misalignment of parsec-scale and kiloparsec-scale jets.
Browne I. W. A.
Henstock D. R.
Pearson Timothy. J.
Polatidis Antonis G.
Readhead Anthony C. S.
No associations
LandOfFree
The Caltech-Jodrell Bank VLBI Surveys does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Caltech-Jodrell Bank VLBI Surveys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Caltech-Jodrell Bank VLBI Surveys will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-374714