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21 July 2010 ASTRA: astrometry and phase-referencing astronomy on the Keck interferometer
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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.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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); doi: 10.1117/12.857740; https://doi.org/10.1117/12.857740
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