Overview and prospects of the LBTI beyond the completed HOSTS survey

Steve Ertel, Philip M. Hinz, Jordan M. Stone, Amali Vaz, Oscar M. Montoya, Grant S. West, Olivier Durney, Paul Grenz, Eckhart A. Spalding, Jarron Leisenring, Kevin Wagner, Narsireddy Anugu, Jennifer Power, Erin R. Maier, Denis Defrère, William Hoffmann, Saavidra Perera, Samantha Brown, Andrew J. Skemer, Bertrand MennessonGrant Kennedy, Elwood Downey, John Hill, Enrico Pinna, Alfio Puglisi, Fabio Rossi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations


The Large Binocular Telescope Interferometer (LBTI) combines the light from the two 8.4 m primary mirrors of the LBT for interferometry and adaptive optics (AO) imaging. With two high performance, state-of-the-art AO systems and adaptive secondary mirrors, a cryogenic instrument, and an edge-to-edge baseline of 23 m, the LBTI is a unique instrument for sensitive, high-angular resolution and high-contrast thermal infrared observations. After the successful completion of the NASA-funded HOSTS nulling interferometry survey for exozodiacal dust, our team is now completing the commissioning and extending the capabilities of other observing modes, namely Fizeau imaging interferometry, spectro-interferometry, integral field spectroscopy, non-redundant aperture masking, and coronagraphy for general astronomical observations. In this paper we briefly review the design of the LBTI, summarize the results and performance of HOSTS, and describe the LBTI's wider current and future capabilities.

Original languageEnglish (US)
Title of host publicationOptical and Infrared Interferometry and Imaging VII
EditorsPeter G. Tuthill, Antoine Merand, Stephanie Sallum
ISBN (Electronic)9781510636798
StatePublished - 2020
EventOptical and Infrared Interferometry and Imaging VII 2020 - Virtual, Online, United States
Duration: Dec 14 2020Dec 22 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical and Infrared Interferometry and Imaging VII 2020
Country/TerritoryUnited States
CityVirtual, Online


  • Adaptive optics
  • Astronomical optics
  • Exoplanets
  • Exozodiacal dust
  • Infrared astronomy
  • Interferometry
  • Spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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