Scattered energy at the Starfire Optical Range 3.5-m adaptive optic telescope

Patrick T. Ryan; Robert Q. Fugate; Maud P. Langlois; David G. Sandler

doi:10.1117/12.321641

11 September 1998 Scattered energy at the Starfire Optical Range 3.5-m adaptive optic telescope

Patrick T. Ryan, Robert Q. Fugate, Maud P. Langlois, David G. Sandler

Proceedings Volume 3353, Adaptive Optical System Technologies; (1998) https://doi.org/10.1117/12.321641
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

In order to image faint stellar companions from the ground, high resolution adaptive optics (AO) is needed to correct atmospheric seeing. The 3.5m AO system at the Starfire Optical Range (SOR) was used to confirm theoretical models of scattered light. Halo levels were reduced by a 50 percent at 0.5 inch, which, when combined with the increased Strehl ratio, improved the gain by a factor of 23. Speckle lifetimes ranged form 20 ms at 0.1 inch to 4 ms at 0.4 inch, much longer than the 0.7 ms correction time. These results show good agreement with predictions for current technology and reveal no limitations in principle to detection of exo- solar planets using AO systems with higher speed and resolution.

Citation Download Citation

Patrick T. Ryan, Robert Q. Fugate, Maud P. Langlois, and David G. Sandler "Scattered energy at the Starfire Optical Range 3.5-m adaptive optic telescope", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); https://doi.org/10.1117/12.321641

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