ASTRA: astrometry and phase-referencing astronomy on the Keck interferometer

J. Woillez; R. Akeson; M. Colavita; J. Eisner; A. Ghez; J. Graham; L. Hillenbrand; R. Millan-Gabet; J. Monnier; J-U. Pott; S. Ragland; P. Wizinowich; E. Appleby; B. Berkey; A. Cooper; C. Felizardo; J. Herstein; M. Hrynevych; O. Martin; D. Medeiros; D. Morrison; T. Panteleeva; B. Smith; K. Summers; K. Tsubota; C. Tyau; E. Wetherell

doi:10.1117/12.857740

21 July 2010 ASTRA: astrometry and phase-referencing astronomy on the Keck interferometer

J. Woillez, R. Akeson, M. Colavita, J. Eisner, A. Ghez, J. Graham, L. Hillenbrand, R. Millan-Gabet, J. Monnier, J-U. Pott, S. Ragland, P. Wizinowich, E. Appleby, B. Berkey, A. Cooper, C. Felizardo, J. Herstein, M. Hrynevych, O. Martin, D. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. Summers, K. Tsubota, C. Tyau, E. Wetherell

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Proceedings Volume 7734, Optical and Infrared Interferometry II; 773412 (2010) https://doi.org/10.1117/12.857740
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

ASTRA (ASTrometric and phase-Referencing Astronomy) is an upgrade to the existing Keck Interferometer which aims at providing new self-phase referencing (high spectral resolution observation of YSOs), dual-field phase referencing (sensitive AGN observations), and astrometric (known exoplanetary systems characterization and galactic center general relativity in strong field regime) capabilities. With the first high spectral resolution mode now offered to the community, this contribution focuses on the progress of the dual field and astrometric modes.

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J. Woillez, R. Akeson, M. Colavita, J. Eisner, A. Ghez, J. Graham, L. Hillenbrand, R. Millan-Gabet, J. Monnier, J-U. Pott, S. Ragland, P. Wizinowich, E. Appleby, B. Berkey, A. Cooper, C. Felizardo, J. Herstein, M. Hrynevych, O. Martin, D. Medeiros, D. Morrison, T. Panteleeva, B. Smith, K. Summers, K. Tsubota, C. Tyau, and E. Wetherell "ASTRA: astrometry and phase-referencing astronomy on the Keck interferometer", Proc. SPIE 7734, Optical and Infrared Interferometry II, 773412 (21 July 2010); https://doi.org/10.1117/12.857740

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KEYWORDS

Metrology

Adaptive optics

Mirrors

Space telescopes

Interferometers

Telescopes

Cameras

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