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Proceedings Paper

Seeing timescales for large-aperture optical/infrared interferometers from simulations
Author(s): Robert N. Tubbs
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Paper Abstract

Numerical simulations of interferometers with spatial filters and large apertures are presented. These simulations are particularly aimed at measuring the fringe (or OPD) motion caused by atmospherically induced wavefront corrugations (high order Zernike modes) across the telescope apertures. This component of the fringe motion results from the coupling in a spatial filter of high-order Zernike modes to the fringe motion. The Piston Mode component is found to be an inadequate approximation to the OPD in an interferometer with large apertures, spatial filters and tip-tilt correction. The fringe motion at high temporal frequencies is dominated by the effects of wavefront corrugations across the telescope apertures.

Paper Details

Date Published: 20 October 2004
PDF: 9 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.550320
Show Author Affiliations
Robert N. Tubbs, Leiden Observatory (Netherlands)

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

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