Co-phasing the Large Binocular Telescope: Status and performance of LBTI/PHASECam

D. Defrère; P. Hinz; E. Downey; D. Ashby; V. Bailey; G. Brusa; J. Christou; W. C. Danchi; P. Grenz; J. M. Hill; W. F. Hoffmann; J. Leisenring; J. Lozi; T. McMahon; B. Mennesson; R. Millan-Gabet; M. Montoya; K. Powell; A. Skemer; V. Vaitheeswaran; A. Vaz; C. Veillet

doi:10.1117/12.2057178

Co-phasing the Large Binocular Telescope: Status and performance of LBTI/PHASECam

D. Defrère
, P. Hinz
, E. Downey
, D. Ashby
, V. Bailey
, G. Brusa
, J. Christou
, W. C. Danchi
, P. Grenz
, J. M. Hill
, W. F. Hoffmann
, J. Leisenring
, J. Lozi
, T. McMahon
, B. Mennesson
, R. Millan-Gabet
, M. Montoya
, K. Powell
, A. Skemer
, V. Vaitheeswaran

A. Vaz, C. Veillet

Steward Observatory

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

36 Scopus citations

Abstract

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 highresolution infrared imaging (1.5-13 μm). 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).

Original language	English (US)
Title of host publication	Optical and Infrared Interferometry IV
Editors	Jayadev K. Rajagopal, Michelle J. Creech-Eakman, Fabien Malbet
Publisher	SPIE
ISBN (Electronic)	9780819496140
DOIs	https://doi.org/10.1117/12.2057178
State	Published - 2014
Event	Optical and Infrared Interferometry IV - Montreal, Canada Duration: Jun 23 2014 → Jun 27 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9146
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Optical and Infrared Interferometry IV
Country/Territory	Canada
City	Montreal
Period	6/23/14 → 6/27/14

Keywords

ELT
Fizeau imaging
Fringe tracking
Infrared interferometry
LBT
Nulling interferometry

ASJC Scopus subject areas

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

Access to Document

10.1117/12.2057178

Cite this

Defrère, D., Hinz, P., Downey, E., Ashby, D., Bailey, V., Brusa, G., Christou, J., Danchi, W. C., Grenz, P., Hill, J. M., Hoffmann, W. F., Leisenring, J., Lozi, J., McMahon, T., Mennesson, B., Millan-Gabet, R., Montoya, M., Powell, K., Skemer, A., ... Veillet, C. (2014). Co-phasing the Large Binocular Telescope: Status and performance of LBTI/PHASECam. In J. K. Rajagopal, M. J. Creech-Eakman, & F. Malbet (Eds.), Optical and Infrared Interferometry IV Article 914609 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9146). SPIE. https://doi.org/10.1117/12.2057178

Co-phasing the Large Binocular Telescope: Status and performance of LBTI/PHASECam. / Defrère, D.; Hinz, P.; Downey, E. et al.
Optical and Infrared Interferometry IV. ed. / Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet. SPIE, 2014. 914609 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9146).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Defrère, D, Hinz, P, Downey, E, Ashby, D, Bailey, V, Brusa, G, Christou, J, Danchi, WC, Grenz, P, Hill, JM, Hoffmann, WF, Leisenring, J, Lozi, J, McMahon, T, Mennesson, B, Millan-Gabet, R, Montoya, M, Powell, K, Skemer, A, Vaitheeswaran, V, Vaz, A & Veillet, C 2014, Co-phasing the Large Binocular Telescope: Status and performance of LBTI/PHASECam. in JK Rajagopal, MJ Creech-Eakman & F Malbet (eds), Optical and Infrared Interferometry IV., 914609, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9146, SPIE, Optical and Infrared Interferometry IV, Montreal, Canada, 6/23/14. https://doi.org/10.1117/12.2057178

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abstract = "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 highresolution infrared imaging (1.5-13 μm). 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).",

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AU - Veillet, C.

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AB - 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 highresolution infrared imaging (1.5-13 μm). 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).

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KW - Fringe tracking

KW - Infrared interferometry

KW - LBT

KW - Nulling interferometry

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ER -

Co-phasing the Large Binocular Telescope: Status and performance of LBTI/PHASECam

Abstract

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Keywords

ASJC Scopus subject areas

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