Astronomy and Astrophysics – Astrophysics
Scientific paper
1998-01-26
Astronomy and Astrophysics
Astrophysics
7 pages, 5 encapsulated figures, 1 JPEG figure, accepted for MNRAS
Scientific paper
10.1046/j.1365-8711.1998.01404.x
We present radio observations of the radio galaxy PKS 2152-699 obtained with the Australia Telescope Compact Array (ATCA). The much higher resolution and s/n of the new radio maps reveals the presence of a bright radio component about 10 arcsec NE of the nucleus. This lies close to the highly ionized cloud previously studied in the optical and here shown in a broadband red snapshot image with the HST PC2. It suggests that PKS 2152-699 may be a jet/cloud interaction similar to 3C277.3. This could cause the change in the position angle (of ~20 deg) of the radio emission from the inner to the outer regions. On the large scale, the source has Fanaroff & Riley type II morphology although the presence of the two hot-spots in the centres of the lobes is unusual. The northern lobe shows a particularly relaxed structure while the southern one has an edge-brightened, arc-like structure.
di Serego Alighieri Sperello
Ekers Ron D.
Fosbury Robert A. E.
Morganti Rafaella
Tadhunter Clive N.
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