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Proceedings Paper

Hobby-Eberly Telescope low-resolution spectrograph: mechanical design
Author(s): Gary J. Hill; Harald E. Nicklas; Phillip J. MacQueen; Wolfgang Mitsch; Walter Wellem; Werner Altmann; Gordon L. Wesley; Frank B. Ray
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Paper Abstract

The Hobby-Eberly Telescope (HET) is a revolutionary large telescope of 9.2 meter aperture, located in West Texas at McDonald Observatory. The Low Resolution Spectrograph [LRS, an international collaboration between the University of Texas at Austin (UT), the Instituto de Astronomia de la Universidad Nacional Autonoma de Mexico (IAUNAM), Stanford University, Ludwig-Maximillians-Universitat, Munich (USM), and Georg- August-Universitat, Gottingen (USG)] is a high throughput, imaging grism spectrograph which rides on the HET tracker at prime focus. The remote location and tight space and weight constraints make the LRS a challenging instrument, built on a limited budget. The mechanical design and fabrication were done in Germany, and the camera and CCD system in Texas. The LRS is a grism spectrograph with three modes of operation: imaging, longslit, and multi-object. Here we present a detailed description of the mechanical design of the LRS. Fabrication, assembly and testing of the LRS will be completed by mid 1998. First light for the LRS on the HET is expected in the summer of 1998.

Paper Details

Date Published: 9 July 1998
PDF: 11 pages
Proc. SPIE 3355, Optical Astronomical Instrumentation, (9 July 1998); doi: 10.1117/12.316825
Show Author Affiliations
Gary J. Hill, McDonald Observatory/Univ. of Texas at Austin (United States)
Harald E. Nicklas, Univ.-Sternwarte/Georg-August-Univ. Goettingen (Germany)
Phillip J. MacQueen, McDonald Observatory/Univ. of Texas at Austin (United States)
Wolfgang Mitsch, Univ.-Sternwarte/Ludwig-Maximilians-Univ. Muenchen (Germany)
Walter Wellem, Univ.-Sternwarte/Georg-August-Univ. Goettingen (Germany)
Werner Altmann, Konstructionsburo Werner Altmann (Germany)
Gordon L. Wesley, McDonald Observatory/Univ. of Texas at Austin (United States)
Frank B. Ray, McDonald Observatory/Univ. of Texas at Austin (United States)


Published in SPIE Proceedings Vol. 3355:
Optical Astronomical Instrumentation
Sandro D'Odorico, Editor(s)

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