Share Email Print
cover

Proceedings Paper

Design development of a deployable tertiary mirror for Keck
Author(s): J. X. Prochaska; J. Cabak; C. Ratliff; S. Adkins; M. Bolte; D. Cowley; H. Epps; J. Nelson; A. Tripsas; A. C. Phillips; W. Deich; M. Peck
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The University of California Observatories will design and construct a deployable tertiary mirror (named K1DM3) for the Keck 1 telescope, which will complement technical and scientific advances in the area of time-domain astronomy. The K1DM3 device will enable astronomers to swap between any of the foci on Keck 1 in under 2 minutes, both to monitor varying sources (e.g. stars orbiting the Galactic center) and catch rapidly fading sources (e.g. supernovae, flares, gamma-ray bursts). In this paper, we report on the design development during our in-progress Preliminary Design phase. The design consists of a passive wiffle tree axial support system and a diaphragm lateral support system with a 5 arcminute field-of-view mirror. The mirror assembly is inserted into the light path with an actuation system and it relies on a kinematic mechanism for achieving repeatable, precise positioning. This project, funded by an NSF MRI grant, aspires to complete by the end of 2016.

Paper Details

Date Published: 22 July 2014
PDF: 12 pages
Proc. SPIE 9145, Ground-based and Airborne Telescopes V, 91453X (22 July 2014); doi: 10.1117/12.2055275
Show Author Affiliations
J. X. Prochaska, Univ. of California Observatories (United States)
J. Cabak, Univ. of California Observatories (United States)
C. Ratliff, Univ. of California Observatories (United States)
S. Adkins, Univ. of California Observatories (United States)
M. Bolte, Univ. of California Observatories (United States)
D. Cowley, Univ. of California Observatories (United States)
H. Epps, Univ. of California Observatories (United States)
J. Nelson, Univ. of California Observatories (United States)
A. Tripsas, Univ. of California Observatories (United States)
A. C. Phillips, Univ. of California Observatories (United States)
W. Deich, Univ. of California Observatories (United States)
M. Peck, Univ. of California Observatories (United States)


Published in SPIE Proceedings Vol. 9145:
Ground-based and Airborne Telescopes V
Larry M. Stepp; Roberto Gilmozzi; Helen J. Hall, Editor(s)

© SPIE. Terms of Use
Back to Top