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Paper: An Infrared View of Clusters of Galaxies: CLEVL
Volume: 418, AKARI, a Light to Illuminate the Misty Universe
Page: 241
Authors: Lee, M. G.; Lee, H. M.; Im, M.; Hwang, H. S.; Hwang, N.; Lim, S.; Lee, J. C.; Kim, S. J.; Seo, H. J.; Ko, J.; Shim, H.; Matsuhara, H.; Takagi, T.; Nakagawa, T.; Wada, T.; Kodama, T.; Koyama, Y.; Goto, T.
Abstract: We have been investigating the formation and evolution of clusters of galaxies from low redshift to high redshift using the NIR/MIR images taken with the AKARI/IRC, as part of the AKARI mission program: CLEVL. We present an infrared view of these clusters. It is found that the cluster galaxies detected in MIR are divided into two groups: MIR-blue galaxies with (N3–S11)<0 and MIR-red galaxies with (N3–S11)>0 . MIR-red galaxies are star forming galaxies with varying star formation rates, corresponding to late type galaxies. MIR-blue galaxies are red sequence galaxies with varying stellar ages or with low-level star formation activity. The fraction of the MIR-red galaxies varies significantly from cluster to cluster.
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