Commissioning the LBTI for use as a nulling interferometer and coherent imager

Vanessa P. Bailey, Denis Defrère, E. Downey, Simone Esposito, John M. Hill, W. F. Hoffmann, Jarron Leisenring, Manny Montoya, T. J. McMahon, Alfio Puglisi,

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2014 · 27 citations · 3 references

Concepts

Abstract

The Large Binocular Telescope Interferometer (LBTI) is a strategically important instrument for exploiting the use of the LBT as a 22.7 m telescope. The LBTI has two science cameras (covering the 1.5-5 μm and 8-13 μm atmospheric windows), and a number of observing modes that allow it to carry out a wide range of high-spatial resolution observations. Some simple modes, such as AO imaging, are in routine use. We report here on testing and commissioning of the system for its more ambitious goals as a nulling interferometer and coherent imager. The LBTI will carry out key surveys to Hunt for Observable Signatures of Terrestrial planetary Systems (HOSTS) and an LBTI Exozodi-Exoplanet Common Hunt (LEECH). The current nulling and coherent imaging performance is described.

References

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