The balloon experimental twin telescope for infrared interferometry (BETTII): interferometry at the edge of the atmosphere

S. Rinehart; M. Rizzo; D. Fixsen; P. Ade; R. Barclay; R. Barry; D. Benford; A. Dhabal; R. Juanola-Parramon; Georgina Klemencic; M. Griffin; David T. Leisawitz; S. Maher; J. Mentzell; Lee G. Mundy; E. Pascale; G. Savini; Robert F. Silverberg; J. Staguhn; T. Veach

doi:10.1117/12.2055602

24 July 2014 The balloon experimental twin telescope for infrared interferometry (BETTII): interferometry at the edge of the atmosphere

S. Rinehart, M. Rizzo, D. Fixsen, P. Ade, R. Barclay, R. Barry, D. Benford, A. Dhabal, R. Juanola-Parramon, Georgina Klemencic, M. Griffin, David T. Leisawitz, S. Maher, J. Mentzell, Lee G. Mundy, E. Pascale, G. Savini, Robert F. Silverberg, J. Staguhn, T. Veach

Author Affiliations +

Proceedings Volume 9146, Optical and Infrared Interferometry IV; 914602 (2014) https://doi.org/10.1117/12.2055602
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII) is an 8-meter baseline far-infrared interferometer designed to fly on a high altitude balloon. BETTII uses a double-Fourier Michelson interferometer to simultaneously obtain spatial and spectral information on science targets; the long baseline permits subarcsecond angular resolution, a capability unmatched by other far-infrared facilities. This program started in 2011, and is now in the process of building and testing components of the mission, aiming for first flight in fall of 2015. This paper will provide an overview of the BETTII experiment, with a discussion of current progress and of future plans.

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S. Rinehart, M. Rizzo, D. Fixsen, P. Ade, R. Barclay, R. Barry, D. Benford, A. Dhabal, R. Juanola-Parramon, Georgina Klemencic, M. Griffin, David T. Leisawitz, S. Maher, J. Mentzell, Lee G. Mundy, E. Pascale, G. Savini, Robert F. Silverberg, J. Staguhn, and T. Veach "The balloon experimental twin telescope for infrared interferometry (BETTII): interferometry at the edge of the atmosphere", Proc. SPIE 9146, Optical and Infrared Interferometry IV, 914602 (24 July 2014); https://doi.org/10.1117/12.2055602

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