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Recent progress at the Keck Interferometer: operations and V^2 science

Ragland, S. and Akeson, R. and Felizardo, C. and Herstein, J. and Koresko, C. and Millan-Gabet, R. (2008) Recent progress at the Keck Interferometer: operations and V^2 science. In: Optical and Infrared Interferometry. Proceedings of SPIE. No.7013. Society of Photo-Optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 70130B. ISBN 9780819472236.

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The Keck Interferometer combines the two 10m diameter Keck telescopes for near-infrared fringe visibility, and mid-infrared nulling observations. We report on recent progress with an emphasis on new visibility observing capabilities, operations improvements for visibility and nulling, and on recent visibility science. New visibility observing capabilities include a grism spectrometer for higher spectral resolution. Recent improvements include a new AO output dichroic for increased infrared light throughput, and the installation of new wave-front controllers on both Keck telescopes. We also report on recent visibility results in several areas including (1) young stars and their circumstellar disks, (2) pre-main sequence star masses, and (3) Circumstellar environment of evolved stars. Details on nuller instrument and nuller science results, and the ASTRA phase referencing and astrometry upgrade, are presented in more detail elsewhere in this conference.

Item Type:Book Section
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Akeson, R.0000-0001-9674-1564
Millan-Gabet, R.0000-0003-0447-5866
Alternate Title:Recent progress at the Keck Interferometer: operations and V2 science
Additional Information:© 2008 Society of Photo-Optical Instrumentation Engineers (SPIE). The Keck Interferometer is funded by the National Aeronautics and Space Administration (NASA). Observations presented were obtained at the W. M. Keck Observatory, which is operated as a scientific partnership among the California Institute of Technology, the University of California, and NASA. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. Part of this work was performed at the Jet Propulsion Laboratory, California Institute of Technology, and at the Michelson Science Center, California Institute of Technology, under contract with NASA.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
W. M. Keck FoundationUNSPECIFIED
Subject Keywords:stellar interferometry, visibility measurements, operational efficiency, spectro-interferometry, phase referencing, pre-main sequence binaries
Series Name:Proceedings of SPIE
Issue or Number:7013
Record Number:CaltechAUTHORS:20190712-145157358
Persistent URL:
Official Citation:S. Ragland, P. Wizinowich, R. Akeson, M. Colavita, E. Appleby, B. Berkey, A. Booth, A. Cooper, S. Crawford, W. Dahl, C. Felizardo, J. Garcia-Gathright, J. Herstein, M. Hrynevych, C. Koresko, R. Ligon, D. Medeiros, B. Mennesson, R. Millan-Gabet, D. Morrison, C. Paine, B. Parvin, T. Panteleeva, E. Serabyn, B. Smith, K. Summers, K. Tsubota, C. Tyau, E. Wetherell, and J. Woillez "Recent progress at the Keck Interferometer: operations and V2 science", Proc. SPIE 7013, Optical and Infrared Interferometry, 70130B (28 July 2008);
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97137
Deposited By: Tony Diaz
Deposited On:12 Jul 2019 21:59
Last Modified:03 Oct 2019 21:28

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