Liger at Keck Observatory: overall design specifications and science drivers

Shelley A. Wright; Tucker Jones; James Larkin; Renate Kupke; Marc Kassis; Michael Fitzgerald; Aaron Brown; Maren Cosens; James Wiley; Nils-Erik Rundquist; Evan Kress; Eric Wang; Ji Man Sohn; Chris Johnson; Ken Magnone; Sherry Yeh; Rosalie McGurk

doi:10.1117/12.2630713

29 August 2022 Liger at Keck Observatory: overall design specifications and science drivers

Shelley A. Wright, Tucker Jones, James Larkin, Renate Kupke, Marc Kassis, Michael Fitzgerald, Aaron Brown, Maren Cosens, James Wiley, Nils-Erik Rundquist, Evan Kress, Eric Wang, Ji Man Sohn, Chris Johnson, Ken Magnone, Sherry Yeh, Rosalie McGurk

Author Affiliations +

Proceedings Volume 12184, Ground-based and Airborne Instrumentation for Astronomy IX; 121840B (2022) https://doi.org/10.1117/12.2630713
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Liger is a next-generation near-infrared (810 - 2450 nm) integral field spectrograph (IFS) and imaging camera for the Keck Observatory adaptive optics (AO) system. Liger will enable new science by providing enhanced capabilities, including higher spectral resolving power (R=4,000 – 10,000), access to shorter wavelengths (< 1000 nm), and larger fields of view (13 arcsec x 7 arcsec) than any current or planned ground- or space-based IFS system. The imaging camera sequentially feeds an IFS that makes use of slicer assembly unit and lenslet array. We will present the overall design of the Liger subsystems and review the key science drivers.

Conference Presentation

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Shelley A. Wright, Tucker Jones, James Larkin, Renate Kupke, Marc Kassis, Michael Fitzgerald, Aaron Brown, Maren Cosens, James Wiley, Nils-Erik Rundquist, Evan Kress, Eric Wang, Ji Man Sohn, Chris Johnson, Ken Magnone, Sherry Yeh, and Rosalie McGurk "Liger at Keck Observatory: overall design specifications and science drivers", Proc. SPIE 12184, Ground-based and Airborne Instrumentation for Astronomy IX, 121840B (29 August 2022); https://doi.org/10.1117/12.2630713

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