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Paper: Spectroscopic Study of Galaxies within the Structure around Cl 0939+471
Volume: 399, Panoramic Views of Galaxy Formation and Evolution
Page: 371
Authors: Nakata, F.; Kodama, T.; Tanaka, M.
Abstract: We present the discovery of large-scale structures around Cl 0939+ 4713 at z=0.4 based on spectroscopic redshifts. In our previous reports, we suggested that there are filaments and subclumps around the cluster core, found using the photometric redshift technique. A spectroscopic follow-up observation with the Subaru/FOCAS was carried out on eight selected regions to confirm their association with the main cluster. We confirm that 96 galaxies are cluster members and form large-scale structures around the cluster core.
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