Rinehart, S. A., Rizzo, M., Benford, D. J., Fixsen, D. J., Veach, T. J., Dhabal, A., Leisawitz, D. T., Mundy, L. G., Silverberg, R. F., Barry, R. K., Staguhn, J. G., Barclay, R., Mentzell, J. E., Griffin, Matthew Joseph  ORCID: https://orcid.org/0000-0002-0033-177X, Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Pascale, Enzo ORCID: https://orcid.org/0000-0002-3242-8154, Klemencic, Georgina ORCID: https://orcid.org/0000-0002-2125-9754, Savini, G. and Juanola-Parramon, R.
2014.
The balloon experimental twin telescope for infrared interferometry (BETTII): An experiment for high angular resolution in the far-infrared.
Publications of the Astronomical Society of the Pacific
126
(941)
, pp. 660-673.
10.1086/677402
|
Abstract
The Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII) is a new balloon-borne far-infrared interferometer, being designed to provide spatially-resolved spectroscopy in the far infrared (30–90 μm). The combination of an 8-meter baseline with a double-Fourier Michelson interferometer allows the identification and separation of closely-spaced astronomical sources, while also providing a low-resolution spectrum for each source. In this wavelength range, BETTII will provide subarcsecond angular resolution, a capability unmatched by other far-infrared facilities. This paper provides an overview of the entire design of the BETTII experiment, with a short discussion of the predicted performance on flight.
| Item Type: | Article |
|---|---|
| Date Type: | Published Online |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Subjects: | Q Science > QC Physics |
| Publisher: | Astronomical Society of the Pacific |
| ISSN: | 0004-6280 |
| Funders: | STFC |
| Date of Acceptance: | 31 May 2014 |
| Last Modified: | 27 Oct 2022 08:58 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/63951 |
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