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Discovery of a large-scale clumpy structure of the Lynx supercluster at z∼1.27

  • Fumiaki Nakata (a1) (a2) (a3), Tadayuki Kodama (a2) (a3), Kazuhiro Shimasaku (a3), Mamoru Doi (a4), Hisanori Furusawa (a5), Masaru Hamabe (a6), Masahiko Kimura (a7), Yutaka Komiyama (a5), Satoshi Miyazaki (a5), Sadanori Okamura (a3), Masami Ouchi (a3), Maki Sekiguchi (a8), Masafumi Yagi (a2) and Naoki Yasuda (a8)...

We report the discovery of a probable large-scale structure composed of many galaxy clumps around the known twin clusters at $z=1.26$ and $z=1.27$ in the Lynx region. Our analysis is based on deep, panoramic, and multi-colour imaging with the Suprime-Cam on the 8.2 m Subaru telescope. We apply a photometric redshift technique to extract plausible cluster members at $z\sim1.27$ down to $\sim M^\ast+2.5$. From the 2-D distribution of these photometrically selected galaxies, we newly identify seven candidates of galaxy groups or clusters where the surface density of red galaxies is significantly high ($>$5$\sigma$), in addition to the two known clusters, comprising the largest most distant supercluster ever identified.To search for other articles by the author(s) go to:

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Proceedings of the International Astronomical Union
  • ISSN: 1743-9213
  • EISSN: 1743-9221
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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