On the stability of Cassegrain spectrographs

D. D. Walker; P. D'Arrigo

doi:10.1093/mnras/281.2.673

On the stability of Cassegrain spectrographs

D. D. Walker, P. D'Arrigo

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Gravity-induced flexure has been a long-standing challenge in Cassegrain spectrographs at 4-m class telescopes; it is more so on the scale of 8-m telescopes. This is of particular concern for the Gemini High Resolution Optical Spectrograph, which will be Cassegrain-mounted for its routine mode of operation. In this paper we address the general flexure problem and make specific recommendations. In a companion paper we present results on experimental compensation for flexure in a specific Cassegrain spectrograph - ISIS on the 4.2-m William Herschel Telescope (WHT).

Original language	English
Pages (from-to)	673-678
Number of pages	6
Journal	Monthly Notices of the Royal Astronomical Society
Volume	281
Issue number	2
DOIs	https://doi.org/10.1093/mnras/281.2.673
Publication status	Published - 11 Jul 1996
Externally published	Yes

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On the stability of Cassegrain spectrographs

Abstract

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