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Co-Phasing the Large Binocular Telescope:The Large Binocular Telescope Interferometer is a NASA-funded nulling and imaging instrument designed to coherently combine the two 8.4-m primary mirrors of the LBT for high-sensitivity, high-contrast, and high-resolution infrared imaging (1.5-13 micrometer). PHASECam is LBTI's near-infrared camera used to measure tip-tilt and phase variations between the two AO-corrected apertures and provide high-angular resolution observations. We report on the status of the system and describe its on-sky performance measured during the first semester of 2014. With a spatial resolution equivalent to that of a 22.8-meter telescope and the light-gathering power of single 11.8-meter mirror, the co-phased LBT can be considered to be a forerunner of the next-generation extremely large telescopes (ELT).
Document ID
20140017408
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Defrere, D. (Arizona Univ. Tucson, AZ, United States)
Hinz, P. (Arizona Univ. Tucson, AZ, United States)
Downey, E. (Arizona Univ. Tucson, AZ, United States)
Ashby, D. (Arizona Univ. Tucson, AZ, United States)
Bailey, V. (Arizona Univ. Tucson, AZ, United States)
Brusa, G. (Arizona Univ. Tucson, AZ, United States)
Christou, J. (Arizona Univ. Tucson, AZ, United States)
Danchi, W. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Grenz, P. (Arizona Univ. Tucson, AZ, United States)
Hill, J. M. (Arizona Univ. Tucson, AZ, United States)
Hoffmann, W. F. (Arizona Univ. Tucson, AZ, United States)
Leisenring, J. (Arizona Univ. Tucson, AZ, United States)
Lozi, J. (Arizona Univ. Tucson, AZ, United States)
McMahon, T. (Arizona Univ. Tucson, AZ, United States)
Mennesson, B. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Millan-Gabet, R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Montoya, M. (Arizona Univ. Tucson, AZ, United States)
Powell, K. (Arizona Univ. Tucson, AZ, United States)
Skemer, A. (Arizona Univ. Tucson, AZ, United States)
Vaitheeswaran, V. (Arizona Univ. Tucson, AZ, United States)
Vaz, A. (Arizona Univ. Tucson, AZ, United States)
Veillet, C. (Arizona Univ. Tucson, AZ, United States)
Date Acquired
December 16, 2014
Publication Date
June 22, 2014
Publication Information
Publisher: SPIE
Subject Category
Instrumentation And Photography
Report/Patent Number
GSFC-E-DAA-TN16625
Meeting Information
Meeting: SPIE Astronomical Telescopes + Instrumentation 2014
Location: Montrýal, Quebec
Country: Canada
Start Date: June 22, 2014
End Date: June 27, 2014
Funding Number(s)
CONTRACT_GRANT: NSF 0705296
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
LBT
Infrared interfero
Fizeau imaging

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