Echelle Spectrographs for 8m-class telescopes

David Walker, Richard G. Bingham, Francisco Diego

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)


Following the success of the UCL Echelle Spectrograph (UCLES) at the Anglo Australian Telescope, we consider the design of a similar facility for an 8m-class telescope. In particular, we explore to what extent the UCLES could simply be scaled up and whether this is indeed the best or most economic approach. Compensation of image rotation is a critical issue, impacting on the choice of telescope secondary f/ratio. The question of prismatic cross dispersion is reviewed in the context of a large instrument, leading to our novel proposal to mosaic the prisms. The impact of the R4 echelle ruling is explored in some detail, with a preliminary instrument scheme being developed for future study. Finally, we present some comments on the relevance of the Baranne white-light pupil concept.

Original languageEnglish
Title of host publicationInstrumentation in Astronomy VII
EditorsDavid L. Crawford
Number of pages15
Volume1235, Part 2
ISBN (Print)0819402796, 9780819402790
Publication statusPublished - 1 Jul 1990
Externally publishedYes
EventSPIE Astronomical Telescopes and Instrumentation for the 21st Century - Tucson, United States
Duration: 11 Feb 199016 Feb 1990
Conference number: 7

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceSPIE Astronomical Telescopes and Instrumentation for the 21st Century
Country/TerritoryUnited States


Dive into the research topics of 'Echelle Spectrographs for 8m-class telescopes'. Together they form a unique fingerprint.

Cite this