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A sample of southern Compact Steep Spectrum radio sources: the VLBI observations


Tzioumis, A and King, EA and Morganti, R and Dallacasa, D and Tadhunter, C and Fanti, C and Reynolds, J and Jauncey, DL and Preston, R and McCulloch, PM and Tingay, S and Edwards, P and Costa, ME and Jones, D and Lovell, JEJ and Clay, R and Meier, D and Murphy, D and Gough, R and Ferris, R and White, G and Jones, P, A sample of southern Compact Steep Spectrum radio sources: the VLBI observations, Astronomy and Astrophysics, 3, (Sept) pp. 841-850. ISSN 0004-6361 (2002) [Refereed Article]

DOI: doi:10.1051/0004-6361:20020964


A small sample of 7 southern Compact Steep Spectrum (CSS) radio sources has been selected as part of the study of a larger flux-limited complete sample of radio sources. High resolution images, using the VLBI network in the southern hemisphere and the high resolution MERLIN array, are presented for all sources in the CSS sample. The overall morphology of each source consists of well-defined double lobes but with substantial diffuse and extended components present. In the majority of cases only a fraction of the total flux density is detected on the VLBI baselines, indicating the presence of larger extended radio structures. However, all sources are unresolved at arcsecond scales and are of sub-galactic size, with linear size in the range 0.1-2 kpc. The radio properties of the sources agree well with CSS sources in other samples.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the mathematical sciences
UTAS Author:King, EA (Dr King)
UTAS Author:McCulloch, PM (Professor Peter McCulloch)
UTAS Author:Costa, ME (Dr Marco Costa)
UTAS Author:Lovell, JEJ (Dr Jim Lovell)
ID Code:25762
Year Published:2002
Web of Science® Times Cited:36
Deposited By:Physics
Deposited On:2002-08-01
Last Modified:2011-09-21

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