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Proceedings Paper

Status of the Keck Planet Imager and Characterizer phase II development
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Paper Abstract

The Keck Planet Imager and Characterizer comprises of a series of upgrades to the Keck II adaptive optics system and instrument suite to improve the direct imaging and high resolution spectroscopy capabilities of the facility instruments NIRC2 and NIRSPEC, respectively. Phase I of KPIC includes a NIR pyramid wavefront sensor and a Fiber Injection Unit (FIU) to feed NIRSPEC with a single mode fiber, which have already been installed and are currently undergoing commissioning. KPIC will enable High Dispersion Coronagraphy (HDC) of directly imaged exoplanets for the first time, providing potentially improved detection significance and spectral characterization capabilities compared to direct imaging. In favorable cases, Doppler imaging, spin measurements, and molecule mapping are also possible. This science goal drives the development of phase II of KPIC, which is scheduled to be deployed in early 2020. Phase II optimizes the system throughput and contrast using a variety of additional submodules, including a 952 element deformable mirror, phase induced amplitude apodization lenses, an atmospheric dispersion compensator, multiple coronagraphs, a Zernike wavefront sensor, and multiple science ports. A testbed is being built in the Exoplanet Technology Lab at Caltech to characterize and test the design of each of these submodules before KPIC phase II is deployed to Keck. This paper presents an overview of the design of phase II and report on results from laboratory testing.

Paper Details

Date Published: 9 September 2019
PDF: 12 pages
Proc. SPIE 11117, Techniques and Instrumentation for Detection of Exoplanets IX, 111170U (9 September 2019); doi: 10.1117/12.2529685
Show Author Affiliations
Jacklyn Pezzato, Caltech (United States)
Nemanja Jovanovic, Caltech (United States)
Dimitri Mawet, Caltech (United States)
Garreth Ruane, Jet Propulsion Lab. (United States)
Jason Wang, Caltech (United States)
James K. Wallace, Jet Propulsion Lab. (United States)
Jennah K. Colborn, Caltech (United States)
Sylvain Cetre, W. M. Keck Observatory (United States)
Charlotte Z. Bond, Institute for Astronomy (United States)
Randall Bartos, Jet Propulsion Lab. (United States)
Benjamin Calvin, Caltech (United States)
Jacques-Robert Delorme, Caltech (United States)
Daniel Echeverri, Caltech (United States)
Rebecca Jensen-Clem, Univ. of California, Berkeley (United States)
Eden McEwen, Univ. of California, Berkeley (United States)
Scott Lilley, W. M. Keck Observatory (United States)
Ed Wetherell, W. M. Keck Observatory (United States)
Peter Wizinowich, W. M. Keck Observatory (United States)

Published in SPIE Proceedings Vol. 11117:
Techniques and Instrumentation for Detection of Exoplanets IX
Stuart B. Shaklan, Editor(s)

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