Evolutionary phases of gas-rich galaxies in a galaxy cluster at z=1.46

  title={Evolutionary phases of gas-rich galaxies in a galaxy cluster at z=1.46},
  author={Masao Hayashi and Tadayuki Kodama and Kotaro Kohno and Yuki Yamaguchi and Ken-ichi Tadaki and Bunyo Hatsukade and Yusei Koyama and Rhythm Shimakawa and Yoichi Tamura and Tomoko L. Suzuki},
  journal={arXiv: Astrophysics of Galaxies},
We report a survey of molecular gas in galaxies in the XMMXCS J2215.9-1738 cluster at $z=1.46$. We have detected emission lines from 17 galaxies within a radius of $R_{200}$ from the cluster center, in Band 3 data of the Atacama Large Millimeter/submillimeter Array (ALMA) with a coverage of 93 -- 95 GHz in frequency and 2.33 arcmin$^2$ in spatial direction. The lines are all identified as CO $J$=2--1 emission lines from cluster members at $z\sim1.46$ by their redshifts and the colors of their… Expand

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