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VLBI observations at 2.3 GHz of the compact galaxy 1934-638VLBI observations of the strong radio source 1934-638 show it to be a binary with a component separation of 42.0 + or - 0.2 mas, a position angle of 90.5 + or - 1 deg, and component sizes of about 2.5 mas. The results imply the presence of an additional elongated component aligned with, and between, the compact double components. The sources's almost equal compact double structure, peaked spectrum, low variability, small polarization, and particle-dominated radio lobes suggests that it belongs to the class of symmetric compact double sources identified by Phillips and Mutel (1980, 1981, 1982).
Document ID
19890057211
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Tzioumis, Anastasios K.
(Sydney, University Australia; Manchester, Victoria University, Jodrell Bank, United Kingdom)
Jauncey, David L.
(CSIRO Div. of Radiophysics, Epping, Australia)
Preston, Robert A.
(Sydney Univ. Australia)
Meier, David L.
(Sydney Univ. Australia)
Morabito, David D.
(Sydney Univ. Australia)
Skjerve, Lyle
(Sydney Univ. Australia)
Slade, Martin A.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Nicolson, George D.
(Council for Scientific and Industrial Research, National Institute for Telecommunications Research, Johannesburg Republic of South Africa, United States)
Niell, Arthur E.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; Haystack Observatory, Westford MA, United States)
Wehrle, Ann E.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena; California, University Los Angeles, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1989
Publication Information
Publication: Astronomical Journal
Volume: 98
ISSN: 0004-6256
Subject Category
Astronomy
Accession Number
89A44582
Distribution Limits
Public
Copyright
Other

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