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VLA observations of a complete sample of extragalactic X-ray sources. IIA complete sample of 35 X-ray selected sources found with the Einstein Observatory has been observed with the Very Large Array at 6 cm to investigate the relationship between radio and X-ray emission in extragalactic objects. Detections include three active galactic nuclei (AGNs), two clusters or groups of galaxies, two individual galaxies, and two BL Lac objects. The frequency of radio emission in X-ray selected AGNs is compared with that of optically selected quasars using the integral radio-optical luminosity function. The result suggests that the probability for X-ray selected quasars to be radio sources is higher than for those optically selected. No obvious correlation is found in the sample between the richness of X-ray luminosity of the cluster and the presence of a galaxy with radio luminosity at 5 GHz larger than 10 to the 30th ergs/s/Hz.
Document ID
19830061826
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Schild, R.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Zamorani, G.
(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; CNR, Istituto di Radioastronomia Bologna, Italy)
Gioia, I. M.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Feigelson, E. D.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Maccacaro, T.
(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)
Date Acquired
August 11, 2013
Publication Date
August 15, 1983
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 271
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
83A43044
Funding Number(s)
CONTRACT_GRANT: NAS8-30752
CONTRACT_GRANT: NAS8-30751
Distribution Limits
Public
Copyright
Other

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