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Proceedings Paper

'Imaka: a one-degree high-resolution imager for the Canada-France-Hawaii Telescope
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Paper Abstract

The 'Imaka project is a high-resolution wide-field imager proposed for the Canada-France-Hawaii telescope (CFHT) on Mauna Kea. 'Imaka takes advantage of two features of the optical turbulence above Mauna Kea: weak optical turbulence in the free-atmosphere and boundary layer turbulence which is highly confined within a surface layer tens of meters thick and or the telescope enclosures. The combination of the two allows a groundlayer adaptive optics system (GLAO) to routinely deliver an extremely-wide corrected field of view of one-degree at an excellent free-atmosphere seeing limit at visible wavelengths. In addition, populating the focal-plane with orthogonal-transfer CCDs provides a second level of image improvement on the free-atmosphere seeing and the residual GLAO correction. The impact of such an instrument covers a broad range of science and is a natural progression of CFHT's wide-field expertise.

Paper Details

Date Published: 14 July 2010
PDF: 16 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77350I (14 July 2010); doi: 10.1117/12.857570
Show Author Affiliations
Mark R. Chun, Univ. of Hawai'i (United States)
Raymond G. Carlberg, Univ. of Toronto (Canada)
Harvey B. Richer, The Univ. of British Columbia (Canada)
Yannick Mellier, Institut d'Astrophysique de Paris (France)
Pierre Astier, IN2P3 (France)
Olivier Lai, Canada-France-Hawaii Telescope (United States)
Derrick A. Salmon, Canada-France-Hawaii Telescope (United States)
Jean-Charles Cuillandre, Canada-France-Hawaii Telescope (United States)
David Andersen, National Research Council Canada (Canada)
John Pazder, National Research Council Canada (Canada)
Jean-Pierre Véran, National Research Council Canada (Canada)
Gregory A. Barrick, Canada-France-Hawaii Telescope (United States)
Steven Bauman, Canada-France-Hawaii Telescope (United States)
Kevin K. Ho, Canada-France-Hawaii Telescope (United States)
Remy Avila, Univ. Nacional Autónoma de México (Mexico)
Richard W. Wilson, Durham Univ. (United Kingdom)
Timothy Butterley, Durham Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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