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Galaxy Zoo: Dust lane early-type galaxies are tracers of recent, gas-rich minor mergers

Shabala, Stanislav S; Ting, Yuan; Kaviraj, Sugata; Lintott, Chris J.; Crockett, R. Mark; Silk, J; Sarzi, Marc; Schawinski, Kevin; Bamford, Steven P.; Edmondson, Edward


We present the second of two papers concerning the origin and evolution of local early-type galaxies exhibiting dust features. We use optical and radio data to examine the nature of active galactic nucleus (AGN) activity in these objects, and compare these with a carefully constructed control sample. We find that dust lane early-type galaxies are much more likely to host emission-line AGN than the control sample galaxies. Moreover, there is a strong correlation between radio and emission-line...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1111/j.1365-2966.2012.20598.x
Access Rights: Open Access


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