HiCIAO and IRD: Two Exoplanet Instruments for the Subaru 8.2 m Telescope

  • Motohide TamuraEmail author
Reference work entry


Both HiCIAO and IRD are near-infrared infrared instruments developed mainly for the studies of exoplanets on the Subaru 8.2 m Telescope. HiCIAO is an infrared coronagraphic camera with direct broadband imaging, polarization differential imaging, and narrowband differential imaging capabilities. It has been used for the SEEDS project, a 5-year direct imaging survey of exoplanets and disks. IRD is a high-precision infrared high-dispersion fiber-fed spectrometer combined with a wide-wavelength coverage laser frequency comb. Various infrared technologies are used including a laser frequency comb, a new wide-pitch echelle grating, stable ceramic optical bench, and reflective optics. Its main goal is to detect habitable Earth-like planets around late M stars. These stars are too faint at optical, but the combination of infrared radial velocity and the large telescope aperture will enable such challenging observations.


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.University of Tokyo and Astrobiology CenterTokyoJapan

Section editors and affiliations

  • Norio Narita
    • 1
    • 2
    • 3
  1. 1.Graduate School of Science, Department of AstronomyUniversity of TokyoTokyoJapan
  2. 2.Exoplanet Detection Project OfficeNational Astronomical Observatory of JapanTokyoJapan
  3. 3.Exoplanet Detection Project OfficeAstrobiology CenterTokyoJapan

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