Two-dimensional infrared astronomical speckle interferometry

Details Two-dimensional infrared astronomical speckle interferometry Two-dimensional infrared astronomical speckle interferometry

Jan 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988spie..976..193c&link_type=abstract

IN: Statistical optics; Proceedings of the Meeting, San Diego, CA, Aug. 18, 19, 1988 (A90-10186 01-35). Bellingham, WA, Society

Astronomy and Astrophysics

Astronomy

4

Image Processing, Image Reconstruction, Infrared Astronomy, Infrared Interferometers, Speckle Interferometry, Data Reduction, Diffraction Limited Cameras, Power Spectra, Relaxation Method (Mathematics), Spectrum Analysis

Scientific paper

The infrared imager currently in use at the National Optical Astronomy Observatories (NOAO) has been adapted for use as a two-dinmensional infrared speckle camera operating at wavelengths of 1 - 5 microns. Data have been obtained at the Kitt Peak National Observatory (KPNO) Mayall telescope (effective aperture of about 3.8 m) 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.

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