Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1130..138f&link_type=abstract
IN: New technologies for astronomy; Proceedings of the Meeting, Paris, France, Apr. 25, 26, 1989 (A90-37976 16-89). Bellingham,
Astronomy and Astrophysics
Astronomy
4
Coherent Light, Field Of View, Interferometry, Spaceborne Astronomy, Synthetic Apertures, Curvature, Fizeau Effect, Optical Paths, Pupils
Scientific paper
After giving an account of coherent field-of-view (FOV) limitations in space optical interferometry, where the size of the field required is inferred from the number of photoevents and from stellar density, an examination is conducted of FOV limitations in both Michelson and Fizeau cases in order to ascertain their maximum. It is shown that, in all cases, the field is too small to include a reference star in the Michelson final-image field when the input pupil is excessively diluted; while this is not the case for the Fizeau case, the alignment tolerances are extremely severe. The problem of spatial frequency plane coverage is addressed, and a novel mission concept is proposed.
Faucherre Michel
Merkle Fritz
Vakili Farrokh
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