Detailed Design of a Deployable Tertiary Mirror for the Keck I Telescope

Motivated by the ever increasing pursuit of science with the transient sky (dubbed Time Domain Astronomy or TDA), we are fabricating and will commission a new deployable tertiary mirror for the Keck I telescope (K1DM3) at the W.M. Keck Observatory. This paper presents the detailed design of K1DM3 wi...

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Published in:arXiv.org 2016-09
Main Authors: Prochaska, J Xavier, Ratliff, Chris, Cabak, Jerry, Tripsas, Alex, Adkins, Sean, Bolte, Michael, Cowley, David, Dahler, Mike, Deich, Will, Hilton, Lewis, Nelson, Jerry, Park, Sam, Peck, Michael, Phillips, Drew, Pollard, Mike, Randolph, Bill, Sanford, Dale, Ward, Jim, Wold, Truman
Format: Article
Language:English
Subjects:
Astronomy
Communications systems
Compressed air
Opto-mechanics
Time domain analysis
Vignetting
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container_title arXiv.org
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creator Prochaska, J Xavier
Ratliff, Chris
Cabak, Jerry
Tripsas, Alex
Adkins, Sean
Bolte, Michael
Cowley, David
Dahler, Mike
Deich, Will
Hilton, Lewis
Nelson, Jerry
Park, Sam
Peck, Michael
Phillips, Drew
Pollard, Mike
Randolph, Bill
Sanford, Dale
Ward, Jim
Wold, Truman
description Motivated by the ever increasing pursuit of science with the transient sky (dubbed Time Domain Astronomy or TDA), we are fabricating and will commission a new deployable tertiary mirror for the Keck I telescope (K1DM3) at the W.M. Keck Observatory. This paper presents the detailed design of K1DM3 with emphasis on the opto-mechanics. This project has presented several design challenges. Foremost are the competing requirements to avoid vignetting the light path when retracted against a sufficiently rigid system for high-precision and repeatable pointing. The design utilizes an actuated swing arm to retract the mirror or deploy it into a kinematic coupling. The K1DM3 project has also required the design and development of custom connections to provide power, communications, and compressed air to the system. This NSF-MRI funded project is planned to be commissioned in Spring 2017.
doi_str_mv 10.48550/arxiv.1609.02060
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subjects Astronomy
Communications systems
Compressed air
Opto-mechanics
Time domain analysis
Vignetting
title Detailed Design of a Deployable Tertiary Mirror for the Keck I Telescope
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