Extending the Echidna concept: a proposal for a 2000+ multifiber positioner

Anna Marie Moore; Peter R. Gillingham; Will Saunders

doi:10.1117/12.461361

24 December 2002 Extending the Echidna concept: a proposal for a 2000+ multi-fiber positioner

Anna Marie Moore, Peter R. Gillingham, Will Saunders

Proceedings Volume 4836, Survey and Other Telescope Technologies and Discoveries; (2002) https://doi.org/10.1117/12.461361
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The Echidna concept is an attractive solution to performing wide-field spectroscopy in fast beam systems (around F/2.5 or faster) where traditional pick and place multi-fiber positioners are not viable. We introduce a concept design for a 2000+ fiber Echidna-style positioner for the prime focus of a telescope optimized for wide field spectroscopy. A summary of the original 400-fiber Echidna positioner for the Subaru prime focus is presented. The natural extension of this design to a 2000+ fiber system is discussed. Two proposals currently under development incorporating such a positioner are introduced. The 2250 fiber Ukidna spectrograph is a stellar radical velocity engine for the UK Schmidt telescope at Siding Spring Observatory. More ambitious is the 4000 fiber Kilo-Aperture Optical Spectrograph (KAOS) enabling the 8-m Gemini telescopes with a 1.5° field of view for multi-object spectroscopy. Both instruments offer an order of magnitude increase in spectroscopic survey power compared with current day facilities.

Citation Download Citation

Anna Marie Moore, Peter R. Gillingham, and Will Saunders "Extending the Echidna concept: a proposal for a 2000+ multi-fiber positioner", Proc. SPIE 4836, Survey and Other Telescope Technologies and Discoveries, (24 December 2002); https://doi.org/10.1117/12.461361

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