Can I read Liger at Keck Observatory: Design of Imager Optical Assembly and Spectrograph Re-Imaging Optics on EtoBox?

Liger at Keck Observatory: Design of Imager Optical Assembly and Spectrograph Re-Imaging Optics by Wiley, James; Brown, Aaron; Kupke, Renate; Cosens, Maren; Wright, Shelley A.; Fitzgerald, Michael; Johnson, Chris; Jones, Tucker; Kassis, Marc; Kress, Evan; Larkin, James E.; Magnone, Kenneth; McGurk, Rosalie; Rundquist, Nils; Wang, Eric; Yeh, Sherry is a scholarly article available to read on EtoBox.

What is Liger at Keck Observatory: Design of Imager Optical Assembly and Spectrograph Re-Imaging Optics about?

Liger is an adaptive optics (AO) fed imager and integral field spectrograph (IFS) designed to take advantage of the Keck All-sky Precision Adaptive-optics (KAPA) upgrade for the W.M. Keck Observatory. We present the design and analysis of the imager optical assembly including the spectrograph Re-Imaging Optics (RIO) which transfers the beam path from the imager focal plane to the IFS slicer module and lenslet array. Each imager component and the first two RIO mechanisms are assembled and individually aligned on the same optical plate. Baffling suppresses background radiation and scattered light, and a pupil viewing camera allows the imager detector to focus on an image of the telescope pupil. The optical plate mounts on an adapter frame for alignment of the overall system. The imager and RIO will be characterized in a cryogenic test chamber before installation in the final science cryostat.

Author

Wiley, James; Brown, Aaron; Kupke, Renate; Cosens, Maren; Wright, Shelley A.; Fitzgerald, Michael; Johnson, Chris; Jones, Tucker; Kassis, Marc; Kress, Evan; Larkin, James E.; Magnone, Kenneth; McGurk, Rosalie; Rundquist, Nils; Wang, Eric; Yeh, Sherry

Published

2022

Language

EN