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VLBI observations of 416 extragalactic radio sourcesVery long baseline interferometry (VLBI) observations of 416 radio sources with declinations north of -45 deg have been conducted at frequencies of 2.3 and 8.4 GHz. At 2.3 GHz, 323 of 391 radio sources observed were detected with a fringe spacing of 3 milliarcsec and a detection limit of about 0.1 Jy. At 8.4 GHz, 278 of 416 radio sources were detected with a fringe spacing of 1 milliarcsec and a detection limit of about 0.1 Jy. This survey was conducted primarily to determine the strength of compact components at 8.4 GHz for radio sources previously detected with VLBI at 2.3 GHz. Compact extragalactic radio sources with strong correlated flux densities at both frequencies are used to form a high-accuracy reference frame.
Document ID
19860052943
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Morabito, D. D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Niell, A. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Preston, R. A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Linfield, R. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wehrle, A. E.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Faulkner, J.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1986
Publication Information
Publication: Astronomical Journal
Volume: 91
ISSN: 0004-6256
Subject Category
Astronomy
Accession Number
86A37681
Distribution Limits
Public
Copyright
Other

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