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Adaptive optics for the Thirty Meter Telescope

Ellerbroek, Brent and Britton, Matthew and Dekany, Richard and Gavel, Don and Herriot, Glen and Macintosh, Bruce and Stoesz, Jeff (2005) Adaptive optics for the Thirty Meter Telescope. In: Astronomical Adaptive Optics Systems and Applications II. Proceedings of SPIE. No.5903. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 590304. ISBN 9780819459084. http://resolver.caltech.edu/CaltechAUTHORS:20190517-160625720

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Abstract

Adaptive Optics (AO) will be essential for at least seven of the eight science instruments currently planned for the Thirty Meter Telescope (TMT). These instruments include three near infra-red (NIR) imagers and spectrometers with fields of view from 2 to 30 arc seconds, a mid-IR echelle spectrometer, a planet formation imager/spectrometer, a wide field optical spectrograph, and a NIR multi-object spectrometer with multiple integral field units deployable over a 5 arc minute field of regard. In this paper we describe the overall AO reference design that supports these instruments, which consists of a facility AO system feeding the first three instruments and dedicated AO systems for the remaining four. Key design challenges for these systems include very high-order, large-stroke wavefront correction, tip-tilt sensing with faint natural guide stars to maximize sky coverage, laser guidestar wavefront sensing on a very large aperture, and achieving extremely high contrast ratios for the detection of extra-solar planets and other faint companions of bright stars. We describe design concepts for meeting these challenges and summarize our supporting plans for AO component development.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
https://doi.org/10.1117/12.619915DOIArticle
ORCID:
AuthorORCID
Macintosh, Bruce0000-0003-1212-7538
Additional Information:© 2005 Society of Photo-Optical Instrumentation Engineers (SPIE). This paper was prepared as part of the work of the Thirty- Meter Telescope (TMT) Project. TMT is a partnership of the Association of Universities for Research in Astronomy (AURA), the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology, and the University of California. The partners gratefully acknowledge the support of the Gordon and Betty Moore Foundation, the U.S. National Science Foundation (NSF), the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, and the Gemini Partnership. Portions of this research were performed under the auspices of the U. S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under Contract W-7405-ENG-48. The sodium layer measurements used in Fig. 2 were provided by Dr. Chiao-Yao (Joe) She of Colorado St. University. Roland Geyl of SAGEM and James Beletic at the Rockwell Science Center provided the figures appearing in Section 5.
Group:Thirty Meter Telescope
Funders:
Funding AgencyGrant Number
Association of Universities for Research in Astronomy (AURA)UNSPECIFIED
Association of Canadian Universities for Research in Astronomy (ACURA)UNSPECIFIED
CaltechUNSPECIFIED
University of CaliforniaUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
NSFUNSPECIFIED
National Research Council of CanadaUNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Gemini PartnershipUNSPECIFIED
Department of Energy (DOE)W-7405-ENG-48
Record Number:CaltechAUTHORS:20190517-160625720
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20190517-160625720
Official Citation:Brent Ellerbroek, Matthew Britton, Richard Dekany, Don Gavel, Glen Herriot, Bruce Macintosh, and Jeff Stoesz "Adaptive optics for the Thirty Meter Telescope", Proc. SPIE 5903, Astronomical Adaptive Optics Systems and Applications II, 590304 (8 October 2005); doi: 10.1117/12.619915; https://doi.org/10.1117/12.619915
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:95581
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 May 2019 15:02
Last Modified:20 May 2019 15:02

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