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0108 + 388 - A compact double source with surprising properties49 cm, 6 cm, and 20 cm observations of the compact double ratio source 0108 + 388 are presented. Extended emission about 20 deg to the east of the core is detected which resembles a hot spot/lobe with a bridge of emission extending back to the core. This is the first detection of extended emission associated with such a source, and it is inconsistent with the suggestion that such sources are very young classical double radio sources. The inconsistency can be reconciled if the activity in this object is recurrent and the emission is the relic of a previous epoch of activity. Alternatively, the source may be a normal-aged radio galaxy in which most of the radio-emitting plasma is currently unable to escape the nuclear regions of the galaxy. The steep low-frequency spectrum of the core is probably related to the origin of the compact double and suggests that both components are very sharply confined on both their inner and outer edges.
Document ID
19900064772
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Baum, S. A.
(Foundation for Astronomical Research in the Netherlands Amsterdam, Netherlands)
O'Dea, C. P.
(Foundation for Astronomical Research in the Netherlands Amsterdam, Netherlands)
De Bruyn, A. G.
(ASTRON Dwingeloo, Netherlands)
Murphy, D. W.
(JPL, Pasadena, CA; Manchester, Victoria University Jodrell Bank, United Kingdom)
Date Acquired
August 14, 2013
Publication Date
June 1, 1990
Publication Information
Publication: Astronomy and Astrophysics
Volume: 232
Issue: 1, Ju
ISSN: 0004-6361
Subject Category
Astrophysics
Accession Number
90A51827
Distribution Limits
Public
Copyright
Other

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