Astronomy and Astrophysics – Astronomy
Scientific paper
May 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.5016h&link_type=abstract
American Astronomical Society, 194th AAS Meeting, #50.16; Bulletin of the American Astronomical Society, Vol. 31, p.899
Astronomy and Astrophysics
Astronomy
Scientific paper
26W20 is a radio galaxy belonging to an outlying sub-cluster of Abell 754. The host is an apparently normal elliptical for which no emission lines have been detected in spite of the presence of a bright nuclear X-ray source. We report the results of a VLBA observation at 1667 MHz designed to search for significant curvature of the inner jet. We had hypothesized beamed X-ray emission from the core to explain the absence of emission line regions and therefore expected a curved inner jet (i.e., from the line of sight to the plane of the sky). With a 15x6 mas beam, we find an unresolved core of 30 mJy and a single, flared `jet' about 100 pc long and with a position angle differing from that of the kpc scale jet by ~ 30(deg) . With no signs of a counterjet nor any large scale emission on the side opposite the large scale jet and lobe, 26W20 appears to be a truly one-sided source.
Harris Daniel E.
Junor William
Silverman John D.
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