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Proceedings Paper

The bispectrum in model-independent imaging
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Paper Abstract

The goal of future optical aperture synthesis telescopes is to achieve model independent imaging of complex sky structure with the success demonstrated in very long baseline radio interferometry. Tomorrow's optical interferometers must therefore measure both the powerspectrum and the bispectrum of a source and with greater baseline coverage than has so far been achieved. In contrast to VLBI the bispectrum in optical interferometry is not as readily obtained as the powerspectrum components. Although it is clear that image reconstruction in general cannot do without the bispectrum measurements, very little intuition exists on how many and which bispectrum components in particular are most important to record. Such knowledge has implications in the design of the beam combiner and beam handling optics of future interferometers. The authors present results of image reconstruction from simulated optical interferometry data containing a fixed amount of powerspectrum but a varying selection of bispectrum components.

Paper Details

Date Published: 20 October 2004
PDF: 6 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.551018
Show Author Affiliations
Hrobjartur Thorsteinsson, Univ. of Cambridge (United Kingdom)
David Felix Buscher, Univ. of Cambridge (United Kingdom)
John S. Young, Univ. of Cambridge (United Kingdom)

Published in SPIE Proceedings Vol. 5491:
New Frontiers in Stellar Interferometry
Wesley A. Traub, Editor(s)

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