20 July 2010 The SALT HRS spectrograph: final design, instrument capabilities, and operational modes
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Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77354F (2010); doi: 10.1117/12.856382
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States
Abstract
The high-resolution échelle spectrograph, SALT HRS, is at an advanced stage of construction and will shortly become available to the user community of the Southern African Large Telescope (SALT). This paper presents a commentary on the construction progress to date and gives the instrument's final specification with refined estimates for its performance based on the initial testing of the optics and the science-grade detectors. It also contributes a discussion of how the fibre input optics have been tailored to specific scientific aspirations to give four distinct operational modes. Finally, the use of the instrument is discussed in the context of the most common science cases.
© (2010) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. G. Bramall, R. Sharples, L. Tyas, J. Schmoll, P. Clark, P. Luke, N. Looker, N. A. Dipper, S. Ryan, D. A. H. Buckley, J. Brink, S. I. Barnes, "The SALT HRS spectrograph: final design, instrument capabilities, and operational modes", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77354F (20 July 2010); doi: 10.1117/12.856382; https://doi.org/10.1117/12.856382
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KEYWORDS
Spectrographs

Charge-coupled devices

Stars

Spectral resolution

Telescopes

Astronomy

Optical design

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