Multiple guide star tomography demonstration at Palomar Observatory

V. Velur; R. C. Flicker; B. C. Platt; M. C. Britton; R. G. Dekany; M. Troy; J. E. Roberts; J. C. Shelton; J. Hickey

doi:10.1117/12.671666

27 June 2006 Multiple guide star tomography demonstration at Palomar Observatory

V. Velur, R. C. Flicker, B. C. Platt, M. C. Britton, R. G. Dekany, M. Troy, J. E. Roberts, J. C. Shelton, J. Hickey

Proceedings Volume 6272, Advances in Adaptive Optics II; 62725C (2006) https://doi.org/10.1117/12.671666
Event: SPIE Astronomical Telescopes + Instrumentation, 2006, Orlando, Florida , United States

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.

Citation Download Citation

V. Velur, R. C. Flicker, B. C. Platt, M. C. Britton, R. G. Dekany, M. Troy, J. E. Roberts, J. C. Shelton, and J. Hickey "Multiple guide star tomography demonstration at Palomar Observatory", Proc. SPIE 6272, Advances in Adaptive Optics II, 62725C (27 June 2006); https://doi.org/10.1117/12.671666

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