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Impact of galaxy mergers on the colours of cluster galaxies

Oh, Sree; Kim, Keunho; Lee, Joon Hyeop; Kim, Minjin; Sheen, Yun-Kyeong; Rhee, Jinsu; Ree, Chang H; Jeong, Hyunjin; Ho, Luis C.; Kyeong, Jaemann; Sung, Eon-Chang


We examine the ultraviolet and optical colours of 906 cluster galaxies from the KASI-Yonsei Deep Imaging Survey of Clusters (KYDISC). The sample has been divided into two categories, morphologically disturbed and undisturbed galaxies, based on the visual signatures related to recent mergers. We find that galaxies with signatures of recent mergers show significantly bluer colours than undisturbed galaxies. Disturbed galaxies populate more on the cluster outskirts, suggesting recent...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stz1920
Access Rights: Open Access


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