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The accretion histories of brightest cluster galaxies from their stellar population gradients

Oliva-Altamirano, Paola; Brough, Sarah; Jimmy, .; Tran, Kim-Vy; Couch, Warrick; McDermid, Richard M; Lidman, Christopher; von der Linden, Anja; Sharp, Robert


We analyse the spatially resolved stellar populations of nine local (z < 0.1) Brightest Cluster Galaxies (BCGs) observed with VIMOS in Integral Field Unit mode. Our sample is composed of seven slow-rotating and two fast-rotating BCGs. We do not find a connection between stellar kinematics and stellar populations in this small sample. The BCGs have shallow metallicity gradients (median Δ[Fe/H]=-0.11 ± 0.1), high central metallicities (median [Fe/H]<inf>[α/Fe] = 0</inf> = 0.13 ± 0.07), and a wide...[Show more]

CollectionsANU Research Publications
Date published: 2015
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stv475
Access Rights: Open Access


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