Two-Dimensional Infrared Astronomical Speckle Interferometry

Julian C. Christou; Jacques M. Beckers; Jonathan D Freeman; Stephen T Ridgway; Ronald G. Probst

doi:10.1117/12.948546

2 December 1988 Two-Dimensional Infrared Astronomical Speckle Interferometry

Julian C. Christou; Jacques M. Beckers; Jonathan D Freeman; Stephen T Ridgway; Ronald G. Probst;

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Proceedings Volume 0976, Statistical Optics; (1988) https://doi.org/10.1117/12.948546
Event: 32nd Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1988, San Diego, CA, United States

Abstract

The infrared imager currently in use at the National Optical Astronomy Observatories (NOAO) has been adapted for use as a two-dimensional infrared speckle camera operating at wavelengths of 1μm 5μm. Data have been obtained at the Kitt Peak National Observatory (KPNO) Mayall telescope (effective aperture ti 3.8m) for a number of different sources. Diffraction-limited images are presented for two objects, the "Red Rectangle" and NML Cygnus, using the Knox-Thompson algorithm to recover the Fourier phases. A comparison of phase-relaxation techniques applied to the integrated phase differences is presented using both the Hudgin method and successive over-relaxation.

Citation Download Citation

Julian C. Christou, Jacques M. Beckers, Jonathan D Freeman, Stephen T Ridgway, Ronald G. Probst, "Two-Dimensional Infrared Astronomical Speckle Interferometry", Proc. SPIE 0976, Statistical Optics, (2 December 1988); doi: 10.1117/12.948546; https://doi.org/10.1117/12.948546

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