Phase II of the Keck Planet Imager and characterizer: system-level laboratory characterization and preliminary on-sky commissioning
Daniel Echeverri, Nemanja Jovanović, Jacques-Robert Delorme, Yinzi Xin, Tobias Schofield, Luke Finnerty, Jason Wang, Jerry W. Xuan, Dimitri Mawet, Ashley Baker, Randall Bartos, Charlotte Z. Bond, Marta L. Bryan, Benjamin Calvin, Sylvain Cetre, Greg Doppmann, Michael P. Fitzgerald, Jason Fucik, Katelyn Horstman, Ronald López, Emily C. Martin, Stefan Martin, Bertrand Mennesson, Evan Morris, Reston Nash, Jacklyn Pezzato, Michael Porter, Sam Ragland, Mitsuko Roberts, Garreth Ruane, Jean-Baptiste Ruffio, Ben Sappey, Eugene Serabyn, Andrew Skemer, Taylor Venenciano, J. Kent Wallace, Ji Wang, Peter Wizinowich
Abstract
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.