High-resolution SLODAR measurements on Mauna Kea

Timothy Butterley; Richard W. Wilson; Mark R. Chun; Remy Avila; Jose-Luis Aviles

doi:10.1117/12.790351

16 July 2008 High-resolution SLODAR measurements on Mauna Kea

Timothy Butterley, Richard W. Wilson, Mark R. Chun, Remy Avila, Jose-Luis Aviles

Proceedings Volume 7015, Adaptive Optics Systems; 70154L (2008) https://doi.org/10.1117/12.790351
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

We have made high order (32x32 subaperture) Shack-Hartmann wavefront sensor observations of binary stars with separations of approximately 20 arcseconds using the University of Hawaii 2.2 m telescope. We present preliminary results of a Slope Detection and Ranging (SLODAR) analysis of the data yielding measurements of turbulence strength, wind velocity and velocity dispersion as a function of altitude, with approximately 500 m vertical resolution. The aim of the investigation is to explore the validity of the Taylor frozen flow approximation and the implications for layer-oriented predictive AO reconstruction algorithms.

Citation Download Citation

Timothy Butterley, Richard W. Wilson, Mark R. Chun, Remy Avila, and Jose-Luis Aviles "High-resolution SLODAR measurements on Mauna Kea", Proc. SPIE 7015, Adaptive Optics Systems, 70154L (16 July 2008); https://doi.org/10.1117/12.790351

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