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astro-ph2007★ 35 cited
Dependence of the Build-up of the Colour-Magnitude Relation on Cluster Richness at z ~ 0.8
Yusei Koyama, Tadayuki Kodama, Masayuki Tanaka +2
We present environmental dependence of the build-up of the colour-magnitude relation (CMR) at z ~ 0.8. It is well established that massive early-type galaxies exhibit a tight CMR i…
astro-ph2007★ 93 cited
The Remarkable 60 x 2 kpc Optical Filament Associated with a Poststarburst Galaxy in Coma Cluster
Masafumi Yagi, Yutaka Komiyama, Michitoshi Yoshida +4
In the deep narrow band image of the Coma Cluster taken with Suprime-Cam of the Subaru telescope, we found an extremely long and narrow (~ 60 kpc x 2 kpc) Halpha emitting region as…