ISI: recent technology and science

David D. Snyder Hale; Jonathon Weiner; Charles H. Townes

doi:10.1117/12.549482

20 October 2004 ISI: recent technology and science

David D. Snyder Hale, Jonathon Weiner, Charles H. Townes

Proceedings Volume 5491, New Frontiers in Stellar Interferometry; (2004) https://doi.org/10.1117/12.549482
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

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.

Citation Download Citation

David D. Snyder Hale, Jonathon Weiner, and Charles H. Townes "ISI: recent technology and science", Proc. SPIE 5491, New Frontiers in Stellar Interferometry, (20 October 2004); https://doi.org/10.1117/12.549482

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