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 SaundersPeter 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

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

47 Citations (Scopus)


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.

Original languageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy III
EditorsIan S. McLean, Suzanne K. Ramsay, Hideki Takami
Place of PublicationBellingham, WA
Number of pages19
EditionPART 1
ISBN (Print)9780819482259
Publication statusPublished - Jul 2010
Externally publishedYes
EventGround-Based and Airborne Instrumentation for Astronomy III - San Diego, CA, United States
Duration: 27 Jun 20102 Jul 2010


OtherGround-Based and Airborne Instrumentation for Astronomy III
Country/TerritoryUnited States
CitySan Diego, CA


  • AAT
  • fiber
  • galactic archeology
  • high resolution
  • multi-object
  • spectrograph
  • volume phase holographic grating


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