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Proceedings Paper

Recent progress at the Keck Interferometer
Author(s): S. Ragland; R. Akeson; M. Colavita; R. Millan-Gabet; J. Woillez; P. Wizinowich; E. Appleby; B. Berkey; A. Cooper; C. Felizardo; J. Herstein; M. Hrynevych; D. Medeiros; D. Morrison; T. Panteleeva; J.-U. Pott; B. Smith; K. Summers; K. Tsubota; C. Tyau; E. Wetherell
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Paper Abstract

The Keck Interferometer (KI) combines the two 10m diameter Keck telescopes providing milliarcsecond angular resolution. KI has unique observing capabilities such as sensitive K-band V2, L-band V2 and N-band nulling operations. The instrument status of the Keck Interferometer since the last SPIE meeting in 2008 is summarized. We discuss the performance of new visibility observing capabilities including L-band and self-phase referencing modes. A simultaneous dual-beam-combiner mode in the K and L-band has been demonstrated, nearly doubling operational efficiency for bright targets. Operational improvements including simplified reliable operations with reduced personnel resources are highlighted. We conclude with a brief review of the current and future developmental activities of KI. Details of ASTRA developments, nulling performance and science results are presented elsewhere at this conference.

Paper Details

Date Published: 16 July 2010
PDF: 12 pages
Proc. SPIE 7734, Optical and Infrared Interferometry II, 773402 (16 July 2010); doi: 10.1117/12.857477
Show Author Affiliations
S. Ragland, W. M. Keck Observatory (United States)
R. Akeson, NASA Exoplanet Science Institute (United States)
M. Colavita, Jet Propulsion Lab. (United States)
R. Millan-Gabet, NASA Exoplanet Science Institute (United States)
J. Woillez, 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)
D. Medeiros, W. M. Keck Observatory (United States)
D. Morrison, W. M. Keck Observatory (United States)
T. Panteleeva, W. M. Keck Observatory (United States)
J.-U. Pott, 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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