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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…
A Huge Filamentary Structure at z=0.55 and Star Formation Histories of Galaxies at z<1
Masayuki Tanaka, Takako Hoshi, Tadayuki Kodama +1
We report a definitive confirmation of a large-scale structure around the super rich cluster CL0016+1609 at z=0.55. We made spectroscopic follow-up observations with FOCAS on Subar…
Exploring the Variable Sky with the Sloan Digital Sky Survey
Branimir Sesar, Zeljko Ivezic, Robert H. Lupton +29
We quantify the variability of faint unresolved optical sources using a catalog based on multiple SDSS imaging observations. The catalog covers SDSS Stripe 82, and contains 58 mill…
A Deficit of Faint Red Galaxies in the Possible Large-Scale Structures around the RDCS J1252.9-2927 Cluster at z=1.24
Masayuki Tanaka, Tadayuki Kodama, Masaru Kajisawa +5
(Abridged) We report a discovery of possible large-scale structures around the RDCS J1252.9-2927 cluster at z=1.24 based on photometric redshifts. We carried out multi-band wide-fi…
The Galaxy Luminosity Functions down to M~-10 in the Hydra I Cluster
H. Yamanoi, M. Tanaka, M. Hamabe +7
We study the galaxy population in the central region and a region about 0.6 Mpc away from the center of the Hydra I cluster in B- and Rc-bands down to M~-10 using the Subaru Suprim…