Echelle Spectrographs for 8m-class telescopes

David Walker; Richard G. Bingham; Francisco Diego

doi:10.1117/12.19117

Echelle Spectrographs for 8m-class telescopes

David Walker, Richard G. Bingham, Francisco Diego

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

4 Citations (Scopus)

Abstract

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 language	English
Title of host publication	Instrumentation in Astronomy VII
Editors	David L. Crawford
Publisher	SPIE
Pages	535-549
Number of pages	15
Volume	1235, Part 2
ISBN (Print)	0819402796, 9780819402790
DOIs	https://doi.org/10.1117/12.19117
Publication status	Published - 1 Jul 1990
Externally published	Yes
Event	SPIE Astronomical Telescopes and Instrumentation for the 21st Century - Tucson, United States Duration: 11 Feb 1990 → 16 Feb 1990 Conference number: 7

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Publisher	SPIE
Volume	1235
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	SPIE Astronomical Telescopes and Instrumentation for the 21st Century
Country/Territory	United States
City	Tucson
Period	11/02/90 → 16/02/90

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Cite this

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title = "Echelle Spectrographs for 8m-class telescopes",

abstract = "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.",

keywords = "Image Processing - Enhancement, Image Sensors, Optical Instruments - Resolving Power, Telescopes - Imaging Techniques, Echelle Spectrographs (ES), Anglo Australian Telescope (AAT), Baranne White Light Pupil Concept",

author = "David Walker and Bingham, {Richard G.} and Francisco Diego",

year = "1990",

month = jul,

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doi = "10.1117/12.19117",

language = "English",

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series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

pages = "535--549",

editor = "Crawford, {David L.}",

booktitle = "Instrumentation in Astronomy VII",

address = "United States",

note = "SPIE Astronomical Telescopes and Instrumentation for the 21st Century ; Conference date: 11-02-1990 Through 16-02-1990",

}

Walker, D, Bingham, RG & Diego, F 1990, Echelle Spectrographs for 8m-class telescopes. in DL Crawford (ed.), Instrumentation in Astronomy VII. vol. 1235, Part 2, Proceedings of SPIE - The International Society for Optical Engineering, vol. 1235, SPIE, pp. 535-549, SPIE Astronomical Telescopes and Instrumentation for the 21st Century, Tucson, Arizona, United States, 11/02/90. https://doi.org/10.1117/12.19117

Echelle Spectrographs for 8m-class telescopes. / Walker, David; Bingham, Richard G.; Diego, Francisco.

Instrumentation in Astronomy VII. ed. / David L. Crawford. Vol. 1235, Part 2 SPIE, 1990. p. 535-549 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1235).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - 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.

AB - 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.

KW - Image Processing - Enhancement

KW - Image Sensors

KW - Optical Instruments - Resolving Power

KW - Telescopes - Imaging Techniques

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KW - Anglo Australian Telescope (AAT)

KW - Baranne White Light Pupil Concept

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

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ER -

Echelle Spectrographs for 8m-class telescopes

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