Published June 27, 2006
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Multiple guide star tomography demonstration at Palomar observatory
Chicago
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Abstract
We have built and field tested a multiple guide star tomograph with four Shack-Hartmann wavefront sensors. We predict the wavefront on the fourth sensor channel estimated using wavefront information from the other three channels using synchronously recorded data. This system helps in the design of wavefront sensors for future extremely large telescopes that will use multi conjugate adaptive optics and multi object adaptive optics. Different wavefront prediction algorithms are being tested with the data obtained. We describe the system, its current capabilities and some preliminary results.
Additional Information
© 2006 Society of Photo-Optical Instrumentation Engineers (SPIE). This work was supported by the National Science Foundation (NSF) under Agreement No. AST-0096928, the Thirty Meter Telescope (TMT) project, W. M. Keck Observatory and internal Caltech Optical Observatories funds. The authors thank the JPL AO team and staff of Palomar Observatory for valuable support rendered at various stages of this project. Special thanks to Prof. Ed Kibblewhite (The University of Chicago) for useful insight during the design phase. We would also like to thank the TMT site-selection team and Dr. A. J. Pickles (COO) for ensuring that the MASS/DIMM unit was up and working during these experiments. In particular, the efforts of Reed Riddle, Warren Skidmore, Matthias Schöeck, Sebastian Els (CTIO) and Tony Travouillon to keep the unit in perfect running condition despite their busy TMT site survey activities. The Thirty Meter Telescope (TMT) Project is a partnership of the Association of Universities for Research in Astronomy (AURA), the National Science Foundation (NSF), 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 US National Science Foundation, the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, and the Gemini Partnership.Attached Files
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Additional details
- Eprint ID
- 97224
- Resolver ID
- CaltechAUTHORS:20190717-103432645
- NSF
- AST-0096928
- Thirty Meter Telescope Project
- W. M. Keck Observatory
- Caltech Optical Observatories
- Association of Universities for Research in Astronomy (AURA)
- Association of Canadian Universities for Research in Astronomy (ACURA)
- Caltech
- University of California
- Gordon and Betty Moore Foundation
- National Research Council of Canada
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Gemini Partnership
- Created
-
2019-07-17Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Caltech groups
- Thirty Meter Telescope
- Series Name
- Proceedings of SPIE
- Series Volume or Issue Number
- 6272