28 July 2008 Sensitive visible interferometry with PAVO
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Abstract
The Precision Astronomical Visible Observations (PAVO) beam combiner is a new concept in visible beam combination, recently commissioned at the CHARA array. By creating spatially-modulated fringes in a pupil plane and then dispersing with an integral field unit, PAVO utilizes the full multi-r0 aperture of the CHARA array over a standard 50% (630-950nm) bandwidth. In addition, minimal optimized spatial filtering ensures calibration that is in principle as good as using single-mode fibers. We describe the design of and initial results from the PAVO instrument.
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Michael J. Ireland, Michael J. Ireland, Antoine Mérand, Antoine Mérand, Theo A. ten Brummelaar, Theo A. ten Brummelaar, Peter G. Tuthill, Peter G. Tuthill, Gail H. Schaefer, Gail H. Schaefer, Nils H Turner, Nils H Turner, Judit Sturmann, Judit Sturmann, Laszlo Sturmann, Laszlo Sturmann, Harold A McAlister, Harold A McAlister, } "Sensitive visible interferometry with PAVO", Proc. SPIE 7013, Optical and Infrared Interferometry, 701324 (28 July 2008); doi: 10.1117/12.788386; https://doi.org/10.1117/12.788386
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