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First version of the fiber injection unit for the Keck Planet Imager and Characterizer

Delorme, J. R. and Jovanovic, N. and Wallace, J. K. and Bartos, R. D. and Echeverri, D. and Bond, C. Z. and Cetre, S. and Lilley, S. and Jacobson, S. and Mawet, D. and Wizinowich, P. L. and Fitzgerald, M. (2018) First version of the fiber injection unit for the Keck Planet Imager and Characterizer. In: Ground-based and Airborne Instrumentation for Astronomy VII. Proceedings of SPIE. No.10702. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, Art. No. 1070225. ISBN 9781510619579.

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Coupling a high-contrast imaging instrument to a high-resolution spectrograph has the potential to enable the most detailed characterization of exoplanet atmospheres, including spin measurements and Doppler mapping. The high-contrast imaging system serves as a spatial filter to separate the light from the star and the planet while the high-resolution spectrograph acts as a spectral filter, which differentiates between features in the stellar and planetary spectra. The Keck Planet Imager and Characterizer (KPIC) located downstream from the current W. M. Keck II adaptive optics (AO) system will contain a fiber injection unit (FIU) combining a high-contrast imaging system and a fiber feed to Keck’s high resolution infrared spectrograph NIRSPEC. Resolved thermal emission from known young giant exoplanets will be injected into a single-mode fiber linked to NIRSPEC, thereby allowing the spectral characterization of their atmospheres. Moreover, the resolution of NIRSPEC (R = 37,500 after upgrade) is high enough to enable spin measurements and Doppler imaging of atmospheric weather phenomenon. The module was integrated at Caltech and shipped to Hawaii at the beginning of 2018 and is currently undergoing characterization. Its transfer to Keck is planned in September and first on-sky tests sometime in December.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Echeverri, D.0000-0002-1583-2040
Mawet, D.0000-0002-8895-4735
Wizinowich, P. L.0000-0002-1646-442X
Fitzgerald, M.0000-0002-0176-8973
Additional Information:© 2018 Society of Photo-optical Instrumentation Engineers (SPIE). The W. M. Keck Observatory is operated as a scientific partnership among the California Institute of Technology, the University of California, and the National Aeronautics and Space Administration. The Observatory was made possible by the generous financial support of the W. M. Keck Foundation. The near-infrared pyramid wavefront sensor is supported by the National Science Foundation under Grant No. AST-1611623. The fiber injection unit is supported by the Heising-Simons Foundation. The PWS camera was provided by Don Hall as part of his National Science Foundation funding under Grant No. AST 1106391.
Group:Astronomy Department
Funding AgencyGrant Number
W. M. Keck FoundationUNSPECIFIED
Heising-Simons FoundationUNSPECIFIED
Subject Keywords:Adaptive Optics, High contrast imaging, High resolution spectroscopy, Exoplanet characterization, Doppler imaging
Series Name:Proceedings of SPIE
Issue or Number:10702
Record Number:CaltechAUTHORS:20190109-125342618
Persistent URL:
Official Citation:J. R. Delorme, N. Jovanovic, J. K. Wallace, R. D. Bartos, D. Echeverri, C. Z. Bond, S. Cetre, S. Lilley, S. Jacobson, D. Mawet, P. L. Wizinowich, M. Fitzgerald, "First version of the fiber injection unit for the Keck Planet Imager and Characterizer," Proc. SPIE 10702, Ground-based and Airborne Instrumentation for Astronomy VII, 1070225 (6 July 2018); doi: 10.1117/12.2310063
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:92173
Deposited By: Tony Diaz
Deposited On:09 Jan 2019 22:54
Last Modified:09 Mar 2020 13:19

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