Results in speckle photometry

William G. Bagnuolo Jr.; Donald J. Barry; Brian D. Mason; E. G. Dombrowski

doi:10.1117/12.19297

1 August 1990 Results in speckle photometry

William G. Bagnuolo Jr., Donald J. Barry, Brian D. Mason, E. G. Dombrowski

Proceedings Volume 1237, Amplitude and Intensity Spatial Interferometry; (1990) https://doi.org/10.1117/12.19297
Event: SPIE Astronomical Telescopes and Instrumentation for the 21st Century, 1990, Tucson, AZ, United States

Abstract

Algorithms for reconstruction of isoplanically blurred point source pairs are considerably simpler and faster than full-blown image reconstruction techniques. Traditional autocorrelation approaches suffer from a 180 degree ambiguity, however, and only yield order of magnitude estimates for brightness ratios. A new asymmetric algorithm is here presented: the "Directed Vector Autocorrelation" (DVA), which is a rapid alternative to vector autocorrelation. Together with the 'Fork algorithm", a directional filter for estimating brightness ratios, the DVA algorithm has been used to resolve ambiguous orbits and produce differential color photometry for several binary stars.

Citation Download Citation

William G. Bagnuolo Jr., Donald J. Barry, Brian D. Mason, and E. G. Dombrowski "Results in speckle photometry", Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); https://doi.org/10.1117/12.19297

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