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Proceedings Paper

Performance of Echidna fiber positioner for FMOS on Subaru
Author(s): Masayuki Akiyama; Scott Smedley; Peter Gillingham; Jurek Brzeski; Tony Farrell; Masahiko Kimura; Rolf Muller; Naoyuki Tamura; Naruhisa Takato
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Paper Abstract

Echidna is a fiber positioner designed and built by the Anglo-Australian Observatory using novel technology to position 400 fibers in the prime focus field of the Subaru telescope. The fibers feed two near infrared OH-suppression spectrographs, the whole project being known as Fiber Multi Object Spectrograph (FMOS). In order to accommodate the large number of the fibers in the physically limited area, a new fiber positioning method is developed. Stand-alone tests of the positioner at sea level confirm its performance is fully satisfactory. Initial results and prospects of the on-sky commissioning tests of the positioner are also described.

Paper Details

Date Published: 23 July 2008
PDF: 12 pages
Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70182V (23 July 2008); doi: 10.1117/12.788968
Show Author Affiliations
Masayuki Akiyama, Astronomical Institute, Tohoku Univ. (Japan)
Subaru Telescope, National Astronomical Observatory of Japan (United States)
Scott Smedley, Anglo-Australian Observatory (Australia)
Peter Gillingham, Anglo-Australian Observatory (Australia)
Jurek Brzeski, Anglo-Australian Observatory (Australia)
Tony Farrell, Anglo-Australian Observatory (Australia)
Masahiko Kimura, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Rolf Muller, Anglo-Australian Observatory (Australia)
Naoyuki Tamura, Subaru Telescope, National Astronomical Observatory of Japan (United States)
Naruhisa Takato, Subaru Telescope, National Astronomical Observatory of Japan (United States)


Published in SPIE Proceedings Vol. 7018:
Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation
Eli Atad-Ettedgui; Dietrich Lemke, Editor(s)

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