21 March 1997 Gemini Adaptive Optics System
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Proceedings Volume 2871, Optical Telescopes of Today and Tomorrow; (1997); doi: 10.1117/12.269116
Event: Optical Telescopes of Today and Tomorrow, 1996, Landskrona/Hven, Sweden
Abstract
This ia a progress report; we define the requirements and details of the latest design of the Gemini Adaptive Optics System (GAOS). The specifications flow from those astronomy programs needing AO for which Gemini will be best remembered. Based on a critical list of astronomical projects and ignoring those likely to be completed earlier by other ground or space telescopes, the astronomers set requirements for image quality, corrected field of view and sky coverage probability. In median seeing (ro equals 25 cm) we require the signal to noise ratio with GAOS be double that achieved without it, using only tip/tilt/fast-focus of the secondary mirror. Our design is unique because the specifications are for end-to-end image quality delivered to the detector of an instrument while maximizing sky coverage. The error budget includes both telescope errors and instrument effects, with only about one third of the total for the residual uncorrected atmospheric errors, traditionally the only ones considered in papers on adaptive optics
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Glen Herriot, Simon Morris, "Gemini Adaptive Optics System", Proc. SPIE 2871, Optical Telescopes of Today and Tomorrow, (21 March 1997); doi: 10.1117/12.269116; https://doi.org/10.1117/12.269116
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KEYWORDS
Adaptive optics

Gemini Observatory

Stars

Mirrors

Telescopes

Astronomy

Point spread functions

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