Stoesz, Jeff and Véran, Jean-Pierre and Roberts, Scott and Ellerbroek, Brent and Britton, Matthew (2006) Evaluation of ground layer adaptive optics for the wide field optical spectrograph on the TMT. In: Advances in Adaptive Optics II. Proceedings of SPIE. No.6272. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 62724N. ISBN 9780819463371. https://resolver.caltech.edu/CaltechAUTHORS:20190711-144836222
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Abstract
We arrive at a Ground Layer Adaptive Optics (GLAO) design that offers true seeing-improved performance and operation for the red and infrared wavelengths. The design requires an adaptive secondary (AM2) and that the sodium Laser Guide Star (LGS) launch telescope be able to steer four of the beams to 8.5 arcminutes off-axis. When provided with this, the proposed design is potentially the simplest, lowest cost design that can take the form of an upgrade. This is seen as a significant advantage over designs that would build an adaptive mirror into each of the four arms of WFOS. We show that the performance penalty for using one mirror instead of four to correct the entire 81 square arcminute WFOS field is minor.
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| Additional Information: | © 2006 Society of Photo-Optical Instrumentation Engineers (SPIE). J.S. thanks Matthias Schoeck for his assistance with the T1 and T2 C2n profiles. The authors gratefully acknowledge the support of the TMT partner institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the Association of Universities for Research in Astronomy (AURA), the California Institute of Technology and the University of California. This work was supported, as well, by the Canada Foundation for Innovation, the Gordon and Betty Moore Foundation, the National Optical Astronomy Observatory, which is operated by AURA under cooperative agreement with the National Science Foundation, the Ontario Ministry of Research and Innovation, and the National Research Council of Canada. | ||||||||||||||||||||
| Group: | Thirty Meter Telescope | ||||||||||||||||||||
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| Subject Keywords: | ground layer adaptive optics, astronomical instrumentation, extremely large telescope, wide-field spectroscopy | ||||||||||||||||||||
| Series Name: | Proceedings of SPIE | ||||||||||||||||||||
| Issue or Number: | 6272 | ||||||||||||||||||||
| DOI: | 10.1117/12.672578 | ||||||||||||||||||||
| Record Number: | CaltechAUTHORS:20190711-144836222 | ||||||||||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190711-144836222 | ||||||||||||||||||||
| Official Citation: | Jeff Stoesz, Jean-Pierre Véran, Scott Roberts, Brent Ellerbroek, and Matthew Britton "Evaluation of ground layer adaptive optics for the wide-field optical spectrograph on the TMT", Proc. SPIE 6272, Advances in Adaptive Optics II, 62724N (28 June 2006); https://doi.org/10.1117/12.672578 | ||||||||||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||||||||||
| ID Code: | 97068 | ||||||||||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||||||||||
| Deposited By: | Tony Diaz | ||||||||||||||||||||
| Deposited On: | 11 Jul 2019 22:18 | ||||||||||||||||||||
| Last Modified: | 16 Nov 2021 17:26 |
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