Proposal for a temporal version of a hypertelescope

Details Proposal for a temporal version of a hypertelescope Proposal for a temporal version of a hypertelescope

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007a%26a...465.1093r&link_type=abstract

Astronomy and Astrophysics, Volume 465, Issue 3, April III 2007, pp.1093-1097

Astronomy and Astrophysics

Astrophysics

1

Techniques: High Angular Resolution, Techniques: Interferometric, Techniques: Image Processing

Scientific paper

Aims:We propose a new version of hypertelescope devoted to high-resolution direct imaging. Methods: By using a temporal versus spatial optical-path modulation in a multi-aperture interferometer, we show that the beam densification process can be similarly achieved in the time domain giving rise to a good reconfiguration versatility. Reducing the span of optical modulations allows us to convert this instrument into a nulling interferometer. Results: This new experimental configuration allows an easy and versatile recombination reconfiguration for a ground or space instrument and answers the problem of the variable spatial Fourier spectrum sampling either with a ground-based observation or for a pupil reconfiguration for a space mission.

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