Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21543910s&link_type=abstract
American Astronomical Society, AAS Meeting #215, #439.10; Bulletin of the American Astronomical Society, Vol. 42, p.396
Astronomy and Astrophysics
Astronomy
Scientific paper
Non-redundant aperture masking has recently been used to achieve resolution of binary stars beyond the conventional diffraction limit, at separations as small as 0.5 lambda/D. FGS/TFI on JWST will include a non-redundant mask to exploit this "super-resolution" property. Although the usual data analysis method for non-redundant apertures is an interferometric approach, the super-resolution advantage of masked apertures can also be understood through deconvolution. By running iterative Lucy-Richardson deconvolutions on different apertures (including Gaussian, annulus, circular, long-baseline interferometer, and non-redundant masking apertures), we are able to demonstrate the resolution advantages of aperture masking with a straightforward approach.
Lloyd James
Sitarski Breann
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