HiCIAO: The subaru telescope's new high-contrast coronographic imager for adaptive optics

Klaus W. Hodapp, Ryuji Suzuki, Motohide Tamura, Lyu Abe, Hiroshi Suto, Ryo Kandori, Junichi Morino, Tetsuo Nishimura, Hideki Takami, Olivier Guyon, Shane Jacobson, Vern Stahlberger, Hubert Yamada, Richard Shelton, Jun Hashimoto, Alexander Tavrov, Jun Nishikawa, Nobuharu Ukita, Hideyuki Izumiura, Masahiko HayashiTadashi Nakajima, Toru Yamada, Tomonori Usuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

78 Citations (Scopus)


The High-Contrast Coronographic Imager for Adaptive Optics (HiCIAO), is a coronographic simultaneous differential imager for the new 188-actuator AO system at the Subaru Telescope Nasmyth focus. It is designed primarily to search for faint companions, brown dwarves and young giant planets around nearby stars, but will also allow observations of disks around young stars and of emission line regions near other bright central sources. HiCIAO will work in conjunction with the new Subaru Telescope 188-actuator adaptive optics system. It is designed as a flexible,experimental instrument that will grow from the initial, simple coronographic system into more complex, innovative optics as these technologies become available. The main component of HiCIAO is an infrared camera optimized for spectral simultaneous differential imaging that uses a Teledyne 2.5 ?m HAWAII-2RG detector array operated by a Sidecar ASIC. This paper reports on the assembly, testing, and "first light" observations at the Subaru Telescope.

Original languageEnglish
Title of host publicationGround-based and Airborne Instrumentation for Astronomy II
Publication statusPublished - 2008
Externally publishedYes
EventGround-based and Airborne Instrumentation for Astronomy II - Marseille, France
Duration: 2008 Jun 232008 Jun 28

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherGround-based and Airborne Instrumentation for Astronomy II


  • Coronograph
  • Infrared camera
  • Optical design

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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