Hector spectrograph (Spector): mechanical engineering overview

Mahesh Mohanan; Julia Bryant; Rebecca Brown; Scott Croom; Robert Content; Tony Farrell; Michael Goodwin; Joss Bland-Hawthorn; Ellen Houston; Urs Klauser; Jon Lawrence; Helen McGregor; Naveen Pai; David Robertson; Will Saunders; Lew Waller; Ross Zhelem; Jessica Zheng

doi:10.1117/12.2630617

Hector spectrograph (Spector): mechanical engineering overview

Mahesh Mohanan^*, Julia Bryant, Rebecca Brown, Scott Croom, Robert Content, Tony Farrell, Michael Goodwin, Joss Bland-Hawthorn, Ellen Houston, Urs Klauser, Jon Lawrence, Helen McGregor, Naveen Pai, David Robertson, Will Saunders, Lew Waller, Ross Zhelem, Jessica Zheng

^*Corresponding author for this work

Australian Astronomical Optics

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

2 Citations (Scopus)

Abstract

Hector is a multi-integral-field-unit instrument for the Anglo-Australian Telescope (AAT). It simultaneously feeds two spectrographs, the existing AAOmega spectrograph and the new higher-resolution Spector spectrograph. Both are fed with new generation hexabundles. Spector has an all refractive 2-arm design which delivers 1.3A fixed resolution across the full wavelength range has higher resolution in the blue end and R=5000 in the red which makes Spector uniquely powerful spectrograph. The mechanical assembly of the spectrograph is designed to provide specific solutions to the tight spacing between component assemblies with strict tolerance constraints which makes Spector an interesting challenging instrument. The components start with a custom slit assembly providing precise positioning of 855 fibres which forms the interface point for light injection to the spectrograph. This paper presents a detail overview of opto-mechanical component design of Spector spectrograph along with technical specifications. Component fabrication, assembly, testing alignment was completed by early 2021 and received first light in December 2021.

Original language	English
Title of host publication	Ground-based and Airborne Instrumentation for Astronomy IX
Editors	Christopher J. Evans, Julia J. Bryant, Kentaro Motohara
Place of Publication	Washington, DC
Publisher	SPIE
Pages	1-10
Number of pages	10
ISBN (Electronic)	9781510653504
ISBN (Print)	9781510653498
DOIs	https://doi.org/10.1117/12.2630617
Publication status	Published - 2022
Event	Conference on Ground-based and Airborne Instrumentation for Astronomy IX - Montreal, Canada Duration: 17 Jul 2022 → 22 Jul 2022

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	12184
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Conference on Ground-based and Airborne Instrumentation for Astronomy IX
Country/Territory	Canada
City	Montreal
Period	17/07/22 → 22/07/22

Keywords

Spectrograph
Opto-mechanical design
Fiber Slit
Beamsplitter
VPH Grating
Kinematic Mounts

Access to Document

10.1117/12.2630617

Cite this

Mohanan, M., Bryant, J., Brown, R., Croom, S., Content, R., Farrell, T., Goodwin, M., Bland-Hawthorn, J., Houston, E., Klauser, U., Lawrence, J., McGregor, H., Pai, N., Robertson, D., Saunders, W., Waller, L., Zhelem, R., & Zheng, J. (2022). Hector spectrograph (Spector): mechanical engineering overview. In C. J. Evans, J. J. Bryant, & K. Motohara (Eds.), Ground-based and Airborne Instrumentation for Astronomy IX (pp. 1-10). Article 121847P (Proceedings of SPIE; Vol. 12184). SPIE. https://doi.org/10.1117/12.2630617

@inproceedings{1436312734f94d9d8ce1057c05f7030f,

title = "Hector spectrograph (Spector): mechanical engineering overview",

abstract = "Hector is a multi-integral-field-unit instrument for the Anglo-Australian Telescope (AAT). It simultaneously feeds two spectrographs, the existing AAOmega spectrograph and the new higher-resolution Spector spectrograph. Both are fed with new generation hexabundles. Spector has an all refractive 2-arm design which delivers 1.3A fixed resolution across the full wavelength range has higher resolution in the blue end and R=5000 in the red which makes Spector uniquely powerful spectrograph. The mechanical assembly of the spectrograph is designed to provide specific solutions to the tight spacing between component assemblies with strict tolerance constraints which makes Spector an interesting challenging instrument. The components start with a custom slit assembly providing precise positioning of 855 fibres which forms the interface point for light injection to the spectrograph. This paper presents a detail overview of opto-mechanical component design of Spector spectrograph along with technical specifications. Component fabrication, assembly, testing alignment was completed by early 2021 and received first light in December 2021.",

keywords = "Spectrograph, Opto-mechanical design, Fiber Slit, Beamsplitter, VPH Grating, Kinematic Mounts",

author = "Mahesh Mohanan and Julia Bryant and Rebecca Brown and Scott Croom and Robert Content and Tony Farrell and Michael Goodwin and Joss Bland-Hawthorn and Ellen Houston and Urs Klauser and Jon Lawrence and Helen McGregor and Naveen Pai and David Robertson and Will Saunders and Lew Waller and Ross Zhelem and Jessica Zheng",

year = "2022",

doi = "10.1117/12.2630617",

language = "English",

isbn = "9781510653498",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--10",

editor = "Evans, \{Christopher J.\} and Bryant, \{Julia J.\} and Kentaro Motohara",

booktitle = "Ground-based and Airborne Instrumentation for Astronomy IX",

address = "United States",

note = "Conference on Ground-based and Airborne Instrumentation for Astronomy IX ; Conference date: 17-07-2022 Through 22-07-2022",

}

Mohanan, M, Bryant, J, Brown, R, Croom, S, Content, R, Farrell, T , Goodwin, M, Bland-Hawthorn, J, Houston, E, Klauser, U, Lawrence, J , McGregor, H, Pai, N, Robertson, D, Saunders, W, Waller, L , Zhelem, R & Zheng, J 2022, Hector spectrograph (Spector): mechanical engineering overview. in CJ Evans, JJ Bryant & K Motohara (eds), Ground-based and Airborne Instrumentation for Astronomy IX., 121847P, Proceedings of SPIE, vol. 12184, SPIE, Washington, DC, pp. 1-10, Conference on Ground-based and Airborne Instrumentation for Astronomy IX, Montreal, Canada, 17/07/22. https://doi.org/10.1117/12.2630617

Hector spectrograph (Spector): mechanical engineering overview. / Mohanan, Mahesh; Bryant, Julia; Brown, Rebecca et al.
Ground-based and Airborne Instrumentation for Astronomy IX. ed. / Christopher J. Evans; Julia J. Bryant; Kentaro Motohara. Washington, DC: SPIE, 2022. p. 1-10 121847P (Proceedings of SPIE; Vol. 12184).

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

TY - GEN

T1 - Hector spectrograph (Spector)

T2 - Conference on Ground-based and Airborne Instrumentation for Astronomy IX

AU - Mohanan, Mahesh

AU - Bryant, Julia

AU - Brown, Rebecca

AU - Croom, Scott

AU - Content, Robert

AU - Farrell, Tony

AU - Goodwin, Michael

AU - Bland-Hawthorn, Joss

AU - Houston, Ellen

AU - Klauser, Urs

AU - Lawrence, Jon

AU - McGregor, Helen

AU - Pai, Naveen

AU - Robertson, David

AU - Saunders, Will

AU - Waller, Lew

AU - Zhelem, Ross

AU - Zheng, Jessica

PY - 2022

Y1 - 2022

N2 - Hector is a multi-integral-field-unit instrument for the Anglo-Australian Telescope (AAT). It simultaneously feeds two spectrographs, the existing AAOmega spectrograph and the new higher-resolution Spector spectrograph. Both are fed with new generation hexabundles. Spector has an all refractive 2-arm design which delivers 1.3A fixed resolution across the full wavelength range has higher resolution in the blue end and R=5000 in the red which makes Spector uniquely powerful spectrograph. The mechanical assembly of the spectrograph is designed to provide specific solutions to the tight spacing between component assemblies with strict tolerance constraints which makes Spector an interesting challenging instrument. The components start with a custom slit assembly providing precise positioning of 855 fibres which forms the interface point for light injection to the spectrograph. This paper presents a detail overview of opto-mechanical component design of Spector spectrograph along with technical specifications. Component fabrication, assembly, testing alignment was completed by early 2021 and received first light in December 2021.

AB - Hector is a multi-integral-field-unit instrument for the Anglo-Australian Telescope (AAT). It simultaneously feeds two spectrographs, the existing AAOmega spectrograph and the new higher-resolution Spector spectrograph. Both are fed with new generation hexabundles. Spector has an all refractive 2-arm design which delivers 1.3A fixed resolution across the full wavelength range has higher resolution in the blue end and R=5000 in the red which makes Spector uniquely powerful spectrograph. The mechanical assembly of the spectrograph is designed to provide specific solutions to the tight spacing between component assemblies with strict tolerance constraints which makes Spector an interesting challenging instrument. The components start with a custom slit assembly providing precise positioning of 855 fibres which forms the interface point for light injection to the spectrograph. This paper presents a detail overview of opto-mechanical component design of Spector spectrograph along with technical specifications. Component fabrication, assembly, testing alignment was completed by early 2021 and received first light in December 2021.

KW - Spectrograph

KW - Opto-mechanical design

KW - Fiber Slit

KW - Beamsplitter

KW - VPH Grating

KW - Kinematic Mounts

UR - https://www.scopus.com/pages/publications/85178515883

U2 - 10.1117/12.2630617

DO - 10.1117/12.2630617

M3 - Conference proceeding contribution

SN - 9781510653498

T3 - Proceedings of SPIE

SP - 1

EP - 10

BT - Ground-based and Airborne Instrumentation for Astronomy IX

A2 - Evans, Christopher J.

A2 - Bryant, Julia J.

A2 - Motohara, Kentaro

PB - SPIE

CY - Washington, DC

Y2 - 17 July 2022 through 22 July 2022

ER -

Hector spectrograph (Spector): mechanical engineering overview

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Keywords

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