Published April 8, 2015
| Published
Journal Article
Open
Accurate measurements of Optical Turbulence with Sonic-anemometers
Abstract
The minimization of optical turbulence in and around the dome is key to reach optimum performance on large telescopes equipped with adaptive optics. We present the method and preliminary results of in-situ measurements of optical measurements made using sonic-anemometers. We show the impact of correcting the raw data for aliasing, path averaging, pulse sequence delays and Taylors' hypothesis. Finally, we highlight the occurrence of non-Kolmogorov turbulence which complicates the quantitative impact of the measurements on the telescope's resolution.
Additional Information
© 2015 The Authors. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. We would like to thank Tom Horst and Steve Oncley for establishing the theoretical framework around which this work is based. The TMT Project gratefully acknowledges the support of the TMT collaborating institutions. They are the Association of Canadian Universities for Research in Astronomy (ACURA), the California Institute of Technology, the University of California, the National Astronomical Observatory of Japan, the National Astronomical Observatories of China and their consortium partners, and the Department of Science and Technology of India and their supported institutes. This work was supported as well by the Gordon and Betty Moore Foundation, the Canada Foundation for Innovation, the Ontario Ministry of Research and Innovation, the National Research Council of Canada, the Natural Sciences and Engineering Research Council of Canada, the British Columbia Knowledge Development Fund, the Association of Universities for Research in Astronomy (AURA), the U.S. National Science Foundation and the National Institutes of Natural Sciences of Japan.Attached Files
Published - 1742-6596_595_1_012036.pdf
Files
1742-6596_595_1_012036.pdf
Files
(874.4 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:9edde6e822053e0fca2be3a38f859bed
|
874.4 kB | Preview Download |
Additional details
- Eprint ID
- 58196
- Resolver ID
- CaltechAUTHORS:20150611-111813895
- Association of Canadian Universities for Research in Astronomy (ACURA)
- Caltech
- University of California
- National Astronomical Observatory of Japan
- National Astronomical Observatories, Chinese Academy of Sciences (NAOC)
- Department of Science and Technology (India)
- Gordon and Betty Moore Foundation
- Canada Foundation for Innovation
- Ontario Ministry of Research and Innovation
- National Research Council of Canada
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- British Columbia Knowledge Development Fund
- Association of Universities for Research in Astronomy (AURA)
- NSF
- National Institutes of Natural Sciences of Japan
- Created
-
2015-06-13Created from EPrint's datestamp field
- Updated
-
2022-07-12Created from EPrint's last_modified field