Open AccessRadio jet interactions in the radio galaxy PKS 2152–699
Author(s) -
Fosbury R. A. E.,
Morganti R.,
Wilson W.,
Ekers R. D.,
Di Serego Alighieri S.,
Tadhunter C. N.
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01404.x
Subject(s) - physics , astrophysics , radio galaxy , x shaped radio galaxy , astronomy , radio telescope , position angle , galaxy
We present radio observations of the radio galaxy PKS 2152–699 obtained with the Australia Telescope Compact Array. The much higher resolution and signal‐to‐noise ratio of the new radio maps reveal the presence of a bright radio component about 10 arcsec north‐east of the nucleus. This lies close to the highly ionized cloud previously studied in the optical and here shown in a broad‐band red snapshot image with the HST PC 2. It suggests that PKS 2152–699 may be a jet/cloud interaction similar to 3C 277.3. This could cause the change in the position angle (of ∼ 20°) 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 hotspots 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.