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Proceedings Paper

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

Paper Details

Date Published: 24 July 2014
PDF: 10 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 914602 (24 July 2014); doi: 10.1117/12.2055602
Show Author Affiliations
S. Rinehart, NASA Goddard Space Flight Ctr. (United States)
M. Rizzo, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland, College Park (United States)
D. Fixsen, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland, College Park (United States)
P. Ade, Cardiff Univ. (United Kingdom)
R. Barclay, NASA Goddard Space Flight Ctr. (United States)
R. Barry, NASA Goddard Space Flight Ctr. (United States)
D. Benford, NASA Goddard Space Flight Ctr. (United States)
A. Dhabal, NASA Goddard Space Flight Ctr. (United States)
Univ. of Maryland, College Park (United States)
R. Juanola-Parramon, Univ. College London (United Kingdom)
Georgina Klemencic, Cardiff Univ. (United Kingdom)
M. Griffin, Cardiff Univ. (United Kingdom)
David T. Leisawitz, NASA Goddard Space Flight Ctr. (United States)
S. Maher, NASA Goddard Space Flight Ctr. (United States)
Science Systems and Applications, Inc. (United States)
J. Mentzell, NASA Goddard Space Flight Ctr. (United States)
Lee G. Mundy, Univ. of Maryland, College Park (United States)
E. Pascale, Cardiff Univ. (United Kingdom)
G. Savini, Univ. College London (United Kingdom)
Robert F. Silverberg, NASA Goddard Space Flight Ctr. (United States)
J. Staguhn, NASA Goddard Space Flight Ctr. (United States)
Johns Hopkins Univ. (United States)
T. Veach, NASA Goddard Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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