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The Centaurus A Northern Middle Lobe as a Buoyant Bubble

Saxton, Curtis; Sutherland, Ralph; Bicknell, Geoffrey

Description

We model the northern middle radio lobe of Centaurus A (NGC 5128) as a buoyant bubble of plasma deposited by an intermittently active jet. The extent of the rise of the bubble and its morphology imply that the ratio of its density to that of the surrounding ISM is less than 10-2, consistent with our knowledge of extragalactic jets and minimal entrainment into the precursor radio lobe. Using the morphology of the lobe to date the beginning of its rise through the atmosphere of Cen A, we conclude...[Show more]

CollectionsANU Research Publications
Date published: 2001
Type: Journal article
URI: http://hdl.handle.net/1885/89370
Source: Astrophysical Journal, The
DOI: 10.1086/323836

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