HERMES: revisions in the design for a high-resolution multi-element spectrograph for the AAT

Samuelk C. Barden; Damien J. Jones; Stuart I. Barnes; Jeroen Heijmans; Anthony Heng; Greg Knight; David R. Orr; Greg A. Smith; Vladimir Churilov; Jurek Brzeski; Lewis G. Waller; Keith Shortridge; Anthony J. Horton; Don Mayfield; Roger Haynes; Dionne M. Haynes; Denis Whittard; Michael Goodwin; Scott Smedley; Ian Saunders; Peter R. Gillingham; Ed Penny; Tony J. Farrell; Minh Vuong; Ron Heald; Steve Lee; Rolf Muller; Ken Freeman; Joss Bland-Hawthorn; Daniel F. Zucker; Gayandhi De Silva

doi:10.1117/12.856103

14 July 2010 HERMES: revisions in the design for a high-resolution multi-element spectrograph for the AAT

Samuelk C. Barden, Damien J. Jones, Stuart I. Barnes, Jeroen Heijmans, Anthony Heng, Greg Knight, David R. Orr, Greg A. Smith, Vladimir Churilov, Jurek Brzeski, Lewis G. Waller, Keith Shortridge, Anthony J. Horton, Don Mayfield, Roger Haynes, Dionne M. Haynes, Denis Whittard, Michael Goodwin, Scott Smedley, Ian Saunders, Peter R. Gillingham, Ed Penny, Tony J. Farrell, Minh Vuong, Ron Heald, Steve Lee, Rolf Muller, Ken Freeman, Joss Bland-Hawthorn, Daniel F. Zucker, Gayandhi De Silva

Author Affiliations +

Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 773509 (2010) https://doi.org/10.1117/12.856103
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

The AAO is building an optical high resolution multi-object spectrograph for the AAT for Galactic Archaeology. The instrument has undergone significant design revision over that presented at the 2008 Marseilles SPIE meeting. The current design is a 4-channel VPH-grating based spectrograph providing a nominal spectral resolving power of 28,000 and a high-resolution mode of 45,000 with the use of a slit mask. The total spectral coverage is about 1000 Angstroms for up to 392 simultaneous targets within the 2 degree field of view. Major challenges in the design include the mechanical stability, grating and dichroic efficiencies, and fibre slit relay implementation. An overview of the current design and discussion of these challenges is presented.

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Samuelk C. Barden, Damien J. Jones, Stuart I. Barnes, Jeroen Heijmans, Anthony Heng, Greg Knight, David R. Orr, Greg A. Smith, Vladimir Churilov, Jurek Brzeski, Lewis G. Waller, Keith Shortridge, Anthony J. Horton, Don Mayfield, Roger Haynes, Dionne M. Haynes, Denis Whittard, Michael Goodwin, Scott Smedley, Ian Saunders, Peter R. Gillingham, Ed Penny, Tony J. Farrell, Minh Vuong, Ron Heald, Steve Lee, Rolf Muller, Ken Freeman, Joss Bland-Hawthorn, Daniel F. Zucker, and Gayandhi De Silva "HERMES: revisions in the design for a high-resolution multi-element spectrograph for the AAT", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 773509 (14 July 2010); https://doi.org/10.1117/12.856103

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