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Assistant Professor    TADAKI, Ken-ichi

Research Field

  • Galaxy evolution

Brief Introduction of Research

  • We are conducting observational research using the Subaru Telescope in Hawaii, the ALMA in Chile, and the Hubble Space Telescope for understanding formation histories of galaxies over 13.8 billion years. In particular, we are trying to answer big questions such as "How did galaxies change their morphology?", "What causes intense star formation activity in the early universe?" and "When did first massive galaxies form?"

Main Research Achievements

  • Tadaki et al. 2020a, ApJ, 901, 74, "Structural Evolution in Massive Galaxies at z~2"
  • Tadaki et al. 2020b, ApJ, 889, 141, "A Noncorotating Gas Component in an Extreme Starburst at z=4.3"
  • Tadaki et al. 2020c, MNRAS, 496, 4276-4286, "Spin parity of spiral galaxies II: a catalogue of 80 k spiral galaxies using big data from the Subaru Hyper Suprime-Cam survey and deep learning"
  • Tadaki et al. 2019, ApJ, 876, 1, "CNO Emission of an Unlensed Submillimeter Galaxy at z=4.3"
  • Tadaki et al. 2017a, ApJ, 841, L25, "Rotating Starburst Cores in Massive Galaxies at z=2.5"
  • Tadaki et al. 2017b, ApJ, 834, 135, "Bulge-Forming Galaxies with an Extended Rotating Disk at z~2"

Contact us

  • tadaki.ken[at]nao.ac.jp
    (In the mailing address, replace [at] with @)

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