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Vibrations in MagAO: frequency-based analysis of on-sky data, resonance sources identification, and future challenges in vibrations mitigation

Frequency-based analysis and comparisons of tip-tilt on-sky data registered with 6.5 Magellan Telescope Adaptive Optics (MagAO) system on April and Oct 2014 was performed. Twelve tests are conducted under different operation conditions in order to observe the influence of system instrumentation (such as fans, pumps and louvers). Vibration peaks can be detected, power spectral densities (PSDs) are presented to reveal their presence. Instrumentation-induced resonances, close-loop gain and future challenges in vibrations mitigation techniques are discussed.

Identiferoai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/622052
Date27 July 2016
CreatorsZúñiga, Sebastián, Garcés, Javier, Close, Laird M., Males, Jared R., Morzinski, Katie M., Escárate, Pedro, Castro, Mario, Marchioni, José, Zagals, Diego
ContributorsUniv Arizona, Dept Astron, CAAO, Univ Arizona, Steward Observ, Univ. Técnica Federico Santa María (Chile), Univ. Técnica Federico Santa María (Chile), Univ. of Arizona (United States), Univ. of Arizona (United States), Univ. of Arizona (United States), Univ. Técnica Federico Santa María (Chile), Univ. Técnica Federico Santa María (Chile), Univ. Técnica Federico Santa María (Chile), Univ. Técnica Federico Santa María (Chile)
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Source SetsUniversity of Arizona
LanguageEnglish
Detected LanguageEnglish
TypeArticle
Rights© 2016 SPIE
Relationhttp://proceedings.spiedigitallibrary.org/proceeding.aspx?doi=10.1117/12.2232676

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