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Proceedings Paper

ISI: recent technology and science
Author(s): David D. Snyder Hale; Jonathon Weiner; Charles H. Townes
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Paper Abstract

When we last reported the status of the U.C. Berkeley Infrared Spatial Interferometer (ISI) in 2002, we presented simulations, based upon our two-telescope experience, for the expected performance of a three-telescope array that would be capable of measuring three simultaneous visibilities and one closure phase at mid-infrared wavelengths. The ISI is now fully operational as an imaging array and is routinely making fringe visibility and closure phase measurements of late-type stars in the 9 to 12 micron wavelength region. We describe here the technology which is currently in use, along with actual measurements and preliminary 11.15 micron (one-dimensional) image reconstructions.

Paper Details

Date Published: 20 October 2004
PDF: 9 pages
Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); doi: 10.1117/12.549482
Show Author Affiliations
David D. Snyder Hale, Univ. of California/Berkeley (United States)
Jonathon Weiner, Univ. of California/Berkeley (United States)
Charles H. Townes, Univ. of California/Berkeley (United States)

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

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