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A World Array VLBI Image of 3C216 at 1.6GHz

Published online by Cambridge University Press:  25 May 2016

C.E. Akujor ,
R.W. Porcas  and
I. Fejes
C.E. Akujor
Affiliation:
Max-Planck-Intitut fuer Radioastronomie, Bonn, Germany FOMI Satellite Geodetic Observatory, Budapest, Hungary
R.W. Porcas
Affiliation:
Max-Planck-Intitut fuer Radioastronomie, Bonn, Germany FOMI Satellite Geodetic Observatory, Budapest, Hungary
I. Fejes
Affiliation:
Max-Planck-Intitut fuer Radioastronomie, Bonn, Germany FOMI Satellite Geodetic Observatory, Budapest, Hungary

Extract

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The quasar 3C216 has the distinction of being classified as a blazar as well as a compact steep-spectrum radio source (Akujor et al, 1993). It has a grossly mis-aligned large-scale radio structure. Previous VLBI images include those of the core region (Barthel et al 1988; Venturi et al 1993) with 1 mas resolution, and the sub-kpc scale core-jet with resolution ca. 25 mas (Fejes et al, 1992; Akujor et al, 1993). In order to investigate the connection between these structures seen on different scales, we have made a 1.6 GHz observation of the core-jet region with a “World Array” VLBI network. This consisted of 20 antennas, at Effelsberg (Germany), Jodrell “Lovell” (UK), Westerbork (Netherlands), Medicina and Noto (Italy), Onsala-26m (Sweden), Torun-15m (Poland), Simeiz (Ukraine), Bear Lakes (Russia), Seshan (China), Hartebeesthoek (S. Africa), Green Bank-43m, VLA and the VLBA antennas at HN, NL, PT, KP, LA, BR, OV (USA). The observations were made on 18 November, 1992, using the Mk2 recording system, and these were amongst the last to be correlated using the JPL-Caltech Block2 processor. The NRAO AIPS package was used for the data analysis.

Type
Properties of Radio Sources
Information
Symposium - International Astronomical Union , Volume 175: Extragalactic Radio Sources , 1996 , pp. 83 - 84
Copyright
Copyright © Kluwer 1996 

References

Akujor, C.E. et al, 1993, in Subarcsecond Radio Astronomie, Ed Davies, R.J. and Booth, R.S., CUP, p265 Google Scholar
Barthel, P.D. et al, 1988, ApJ , 329, L51 CrossRefGoogle Scholar
Fejes, I., Porcas, R.W. and Akujor, C.E., 1992, A&A , 257, 459 Google Scholar
Venturi, T. et al, 1993, A&A , 271, 65 Google Scholar