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The High Resolution Structure of the Centaurus A Nucleus at 2.29 GHz and 8.42 GHz

Published online by Cambridge University Press:  03 August 2017

D. L. Meier ,
D. L. Jauncey ,
R. A. Preston ,
A. K. Tzioumis ,
A. E. Wehrle ,
R. A. Batchelor ,
J. Falkner ,
P. A. Hamilton ,
B. R. Harvey  and
R. F. Haynes
...Show all authors
D. L. Meier
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109
D. L. Jauncey
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia
R. A. Preston
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109
A. K. Tzioumis
Affiliation:
School of Physics, University of Sydney, N.S.W., 2006, Australia
A. E. Wehrle
Affiliation:
Department of Astronomy, University of California, Los Angeles, California, 90024
R. A. Batchelor
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia
J. Falkner
Affiliation:
Department of Astronomy, University of Southern California, Los Angeles, 90007
P. A. Hamilton
Affiliation:
University of Tasmania, Hobart, Tasmania 7001, Australia
B. R. Harvey
Affiliation:
School of Surveying, University of N.S.W. Kensington, N.S.W. 2033, Australia
R. F. Haynes
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia
B. Johnston
Affiliation:
Ford Aerospace and Communication Corporation, Goldstone, California
A. P. Louie
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109
P. McCulloch
Affiliation:
University of Tasmania, Hobart, Tasmania 7001, Australia
G. Moorey
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia
D. D. Morabito
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109
G. D. Nicolson
Affiliation:
CSIR, National Institute for Telecommunications Research, Johannesburg, South Africa
A. E. Well
Affiliation:
Haystack Observatory, NEROC, Westford, MA 01886
J. A. Roberts
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia
J. G. Robertson
Affiliation:
Anglo-Australian Observatory, Epping Laboratory, Epping, NSW 2121, Australia
G.W.R. Royle
Affiliation:
University of Tasmania, Hobart, Tasmania 7001, Australia
L. J. Skjerve
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109
M. A. Slade
Affiliation:
Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, 91109
O. B. Slee
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia
A. Watkinson
Affiliation:
School of Electrical Engineering, University of Sydney, N.S.W., 2006, Australia
A. E. Wright
Affiliation:
Division of Radiophysics, CSIRO, Epping, Australia

Abstract

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VLBI observations of the nucleus of Centaurus A were made in April, 1982 at two frequencies with an array of five Australian radio antennas as part of the Southern Hemisphere VLBI Experiment (SHEVE). Observations were undertaken at 2.29 GHz with all five antennas, while only two were operational at 8.42 GHz. The 2.29 GHz data yielded significant information on the structure of the nuclear jet. At 8.42 GHz a compact unresolved core was detected as well.

Type
Extragalactic
Information
Symposium - International Astronomical Union , Volume 129: The Impact of VLBI on Astrophysics and Geophysics , 1988 , pp. 137 - 138
Copyright
Copyright © Reidel 1988