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Proceedings Paper

ASTRA: astrometry and phase-referencing astronomy on the Keck interferometer
Author(s): 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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Paper 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.

Paper Details

Date Published: 22 July 2010
PDF: 10 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 773412 (22 July 2010); doi: 10.1117/12.857740
Show Author Affiliations
J. Woillez, W. M. Keck Observatory (United States)
R. Akeson, NASA Exoplanet Science Institute (United States)
M. Colavita, Jet Propulsion Lab. (United States)
J. Eisner, The Univ. of Arizona (United States)
A. Ghez, Univ. of California, Los Angeles (United States)
J. Graham, Univ. of California, Berkeley (United States)
L. Hillenbrand, California Institute of Technology (United States)
R. Millan-Gabet, NASA Exoplanet Science Institute (United States)
J. Monnier, Univ. of Michigan (United States)
J-U. Pott, Max-Planck-Institut für Astronomie (Germany)
S. Ragland, W. M. Keck Observatory (United States)
P. Wizinowich, W. M. Keck Observatory (United States)
E. Appleby, W. M. Keck Observatory (United States)
B. Berkey, W. M. Keck Observatory (United States)
A. Cooper, W. M. Keck Observatory (United States)
C. Felizardo, NASA Exoplanet Science Institute (United States)
J. Herstein, NASA Exoplanet Science Institute (United States)
M. Hrynevych, W. M. Keck Observatory (United States)
O. Martin, W. M. Keck Observatory (United States)
D. Medeiros, W. M. Keck Observatory (United States)
D. Morrison, W. M. Keck Observatory (United States)
T. Panteleeva, W. M. Keck Observatory (United States)
B. Smith, W. M. Keck Observatory (United States)
K. Summers, W. M. Keck Observatory (United States)
K. Tsubota, W. M. Keck Observatory (United States)
C. Tyau, W. M. Keck Observatory (United States)
E. Wetherell, W. M. Keck Observatory (United States)


Published in SPIE Proceedings Vol. 7734:
Optical and Infrared Interferometry II
William C. Danchi; Françoise Delplancke; Jayadev K. Rajagopal, Editor(s)

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