1Caltech (United States) 2W. M. Keck Observatory (United States) 3Univ. of California, Los Angeles (United States) 4Jet Propulsion Lab. (United States) 5The Royal Observatory, Edinburgh (United Kingdom) 6University of California at Berkeley (United States) 7Univ. of California (United States) 8Univ. of California, San Diego (United States) 9Pomona College (United States) 10The Ohio State University (United States)
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The Keck Planet Imager and Characterizer (KPIC) is a series of upgrades for the Keck II Adaptive Optics system and the NIRSPEC spectrograph to enable diffraction-limited, high-resolution (R>30,000) spectroscopy in the K and L bands. KPIC’s use of single-mode fibers provides a substantial reduction in sky background as well as an extremely stable line-spread function. In this paper we present the results of extensive system-level laboratory testing and characterization of Phase II of the instrument and each of its modes. We also show early on-sky results from the first few months of commissioning with these upgrades along with the next steps for the instrument.
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Daniel Echeverri, Nemanja Jovanovic, Jacques-Robert Delorme, Yinzi Xin, Tobias Schofield, Luke Finnerty, Jason J. Wang, Jerry Xuan, Dimitri Mawet, Ashley Baker, Randall Bartos, Charlotte Z. Bond, Marta Bryan, Benjamin Calvin, Sylvain Cetre, Greg Doppmann, Michael P Fitzgerald, Jason Fucik, Katelyn Horstman, Ronald Lopez, Emily C Martin, Stefan Martin, Bertrand Mennesson, Evan Morris, Reston Nash, Jackie Pezzato, Michael Porter, Sam Ragland, Mitsuko K. Roberts, Garreth Ruane, Jean-Baptiste Ruffio, Ben Sappey, Eugene Serabyn, Andrew Skemer, Taylor Venenciano, J. Kent Wallace, Ji Wang, Peter Wizinowich, "Phase II of the Keck Planet Imager and characterizer: system-level laboratory characterization and preliminary on-sky commissioning," Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121841W (29 August 2022); https://doi.org/10.1117/12.2630518