Design and commissioning of a dual visible/near-IR echelle spectrograph for the AEOS telescope

Robert J. Thornton; Jeff R. Kuhn; Klaus-Werner Hodapp; Alan N. Stockton; Gerard Anthony Luppino; Mark Waterson; Michael Maberry; Hubert Yamada; Everett M. Irwin; Kent Fletcher

doi:10.1117/12.462598

7 March 2003 Design and Commissioning of a Dual Visible/Near-IR Echelle Spectrograph for the AEOS Telescope

Robert J. Thornton, Jeff R. Kuhn, Klaus-Werner Hodapp, Alan N. Stockton, Gerard Anthony Luppino, Mark Waterson, Michael Maberry, Hubert Yamada, Everett M. Irwin, Kent Fletcher

Author Affiliations +

Proceedings Volume 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes; (2003) https://doi.org/10.1117/12.462598
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

The Institute for Astronomy has developed and recently installed a high-resolution cross-dispersed echelle spectrograph for use at one of the coudé foci of the AEOS 3.7-meter telescope, operated by the Air Force Space Command atop Mt. Haleakala on the island of Maui. The spectrograph features an optical arm for the wavelength range 0.5 - 1.0 μm and an infrared arm for the range 1.0 - 2.5 μm. We review the spectrograph design and present commissioning results obtained with both the visible and infrared arms. Both channels use a white-pupil collimator design to maximize grating efficiency and to limit the size of the camera optics. The visible arm of the spectrograph uses deep-depletion CCDs optimized for operation near 1.0 μm. The infrared detector is a 2048 x 2048 HgCdTe array (HAWAII-2) that has been developed by the Rockwell Science Center for this project. Both channels are equipped with slit-viewing cameras for object acquisition and control of a fast guiding tip-tilt mirror located at a pupil image in the spectrograph fore optics.

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Robert J. Thornton, Jeff R. Kuhn, Klaus-Werner Hodapp, Alan N. Stockton, Gerard Anthony Luppino, Mark Waterson, Michael Maberry, Hubert Yamada, Everett M. Irwin, and Kent Fletcher "Design and Commissioning of a Dual Visible/Near-IR Echelle Spectrograph for the AEOS Telescope", Proc. SPIE 4841, Instrument Design and Performance for Optical/Infrared Ground-based Telescopes, (7 March 2003); https://doi.org/10.1117/12.462598

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