Physics – Optics
Scientific paper
Sep 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apopt..17.2660w&link_type=abstract
Applied Optics, vol. 17, Sept. 1, 1978, p. 2660-2662. Research supported by the Deutsche Forschungsgemeinschaft.
Physics
Optics
15
Astrometry, Astronomical Photography, Holographic Interferometry, Speckle Patterns, Angular Resolution, Binary Stars, Diffraction Patterns, High Resolution, Position (Location)
Scientific paper
The use of speckle holography in astronomical studies makes it possible to achieve angular resolution levels which are considerably better than those possible in conventional astrophotography. A description is presented of the first application of speckle holography to actual astronomical objects. An image was reconstructed of the double star Zeta Cancri A-B using Zeta Cancri C (located 6 arc seconds apart from A-B) as reference star. An image of the close double star in the triple system of ADS 3358 was also reconstructed and an image was obtained of the complete triple system of ADS 3358 A-B-C by generalizing the image processing procedure of speckle holography. Speckle holography is a modification of speckle interferometry. In both techniques high-resolution information is decoded from speckle interferograms by autocorrelating speckle interferograms.
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