Recent progress at the Keck Interferometer

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

doi:10.1117/12.857477

16 July 2010 Recent progress at the Keck Interferometer

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

Author Affiliations +

Proceedings Volume 7734, Optical and Infrared Interferometry II; 773402 (2010) https://doi.org/10.1117/12.857477
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

Citation Download Citation

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, and E. Wetherell "Recent progress at the Keck Interferometer", Proc. SPIE 7734, Optical and Infrared Interferometry II, 773402 (16 July 2010); https://doi.org/10.1117/12.857477

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