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Journal of Astronomical Telescopes, Instruments, and Systems • Open Access

First light results from the High Efficiency and Resolution Multi-Element Spectrograph at the Anglo-Australian Telescope
Author(s): Andrew I. Sheinis; Borja Anguiano Jimenez; Martin Asplund; Carlos Bacigalupo; Samuel C. Barden; Michael N. Birchall; Joss Bland-Hawthorn; Jurek Brzeski; Russell D. Cannon; Daniela Carollo; Scott Case; Andrew R. Casey; Vladimir Churilov; Warrick Couch; Robert Dean; Gayandhi De Silva; Valentina D’Orazi; Ly Duong; Tony J. Farrell; Kristin Fiegert; Kenneth C. Freeman; Gabriella Frost; Luke Gers; Michael Goodwin; Doug Gray; Andrew Green; Ron Heald; Jeroen Heijmans; Michael Ireland; Damien J. Jones; Prajwal Raj Kafle; Stefan C. Keller; Urs Klauser; Yuriy Kondrat; Janez Kos; Jon S. Lawrence; Steve Lee; Slavko Mali; Sarah Martell; Darren Mathews; Don Mayfield; Stan Miziarski; Rolf Muller; Naveen Pai; Robert Patterson; Ed Penny; David R. Orr; Katharine J. Schlesinger; Sanjib Sharma; Keith Shortridge; Jeffrey Simpson; Scott Smedley; Greg Smith; Darren Stafford; Nicholas F. Staszak; Minh V. Vuong; Lewis G. Waller; Elizabeth Wylie de Boer; Pascal Xavier; Jessica R. Zheng; Ross Zhelem; Daniel F. Zucker; Tomaz Zwitter

Paper Abstract

The High Efficiency and Resolution Multi Element Spectrograph, HERMES, is a facility-class optical spectrograph for the Anglo-Australian Telescope (AAT). It is designed primarily for Galactic Archaeology, the first major attempt to create a detailed understanding of galaxy formation and evolution by studying the history of our own galaxy, the Milky Way. The goal of the GALAH survey is to reconstruct the mass assembly history of the Milky Way through a detailed chemical abundance study of one million stars. The spectrograph is based at the AAT and is fed by the existing 2dF robotic fiber positioning system. The spectrograph uses volume phase holographic gratings to achieve a spectral resolving power of 28,000 in standard mode and also provides a high-resolution mode ranging between 40,000 and 50,000 using a slit mask. The GALAH survey requires an SNR greater than 100 for a star brightness of V=14 in an exposure time of one hour. The total spectral coverage of the four channels is about 100 nm between 370 and 1000 nm for up to 392 simultaneous targets within the 2-degree field of view. HERMES has been commissioned over three runs, during bright time in October, November, and December 2013, in parallel with the beginning of the GALAH pilot survey, which started in November 2013. We present the first-light results from the commissioning run and the beginning of the GALAH survey, including performance results such as throughput and resolution, as well as instrument reliability.

Paper Details

Date Published: 10 August 2015
PDF: 18 pages
J. Ast. Inst. Sys. 1(3) 035002 doi: 10.1117/1.JATIS.1.3.035002
Published in: Journal of Astronomical Telescopes, Instruments, and Systems Volume 1, Issue 3
Show Author Affiliations
Andrew I. Sheinis, Australian Astronomical Observatory (Australia)
The Univ. of Sydney (Australia)
Borja Anguiano Jimenez, Macquarie Univ. (Australia)
Martin Asplund, Research School of Astronomy & Astrophysics (Australia)
Carlos Bacigalupo, Macquarie Univ. (Australia)
Samuel C. Barden, Leibniz-Institut für Astrophysik Potsdam (Germany)
Michael N. Birchall, Australian Astronomical Observatory (Australia)
Joss Bland-Hawthorn, The Univ. of Sydney (Australia)
Jurek Brzeski, Australian Astronomical Observatory (Australia)
Russell D. Cannon, Australian Astronomical Observatory (Australia)
Daniela Carollo, Macquarie Univ. (Australia)
Scott Case, Australian Astronomical Observatory (Australia)
Andrew R. Casey, Univ. of Cambridge (United Kingdom)
Vladimir Churilov, Australian Astronomical Observatory (Australia)
Warrick Couch, Australian Astronomical Observatory (Australia)
Robert Dean, Australian Astronomical Observatory (Australia)
Gayandhi De Silva, Australian Astronomical Observatory (Australia)
The Univ. of Sydney (Australia)
Valentina D’Orazi, Macquarie Univ. (Australia)
Ly Duong, The Australian National Univ. (Australia)
Tony J. Farrell, Australian Astronomical Observatory (Australia)
Kristin Fiegert, Australian Astronomical Observatory (Australia)
Kenneth C. Freeman, Research School of Astronomy & Astrophysics (Australia)
Gabriella Frost, Australian Astronomical Observatory (Australia)
Luke Gers, Australian Astronomical Observatory (Australia)
Michael Goodwin, Australian Astronomical Observatory (Australia)
Doug Gray, Australian Astronomical Observatory (Australia)
Andrew Green, Australian Astronomical Observatory (Australia)
Ron Heald, Australian Astronomical Observatory (Australia)
Jeroen Heijmans, Australian Astronomical Observatory (Australia)
TNO (the Netherlands)
Michael Ireland, The Australian National Univ. (Australia)
Damien J. Jones, Prime Optics (Australia)
Prajwal Raj Kafle, International Ctr. for Radio Astronomy Research (Australia)
Stefan C. Keller, The Australian National Univ. (Australia)
Urs Klauser, Australian Astronomical Observatory (Australia)
Yuriy Kondrat, Australian Astronomical Observatory (Australia)
Janez Kos, The Univ. of Sydney (Australia)
Univ. of Ljubljana (Slovenia)
Jon S. Lawrence, Australian Astronomical Observatory (Australia)
Macquarie Univ. (Australia)
Steve Lee, Australian Astronomical Observatory (Australia)
Slavko Mali, Australian Astronomical Observatory (Australia)
Sarah Martell, The Univ. of New South Wales (Australia)
Darren Mathews, Australian Astronomical Observatory (Australia)
Don Mayfield, Australian Astronomical Observatory (Australia)
Stan Miziarski, Australian Astronomical Observatory (Australia)
Rolf Muller, Australian Astronomical Observatory (Australia)
Naveen Pai, Australian Astronomical Observatory (Australia)
Robert Patterson, Australian Astronomical Observatory (Australia)
Ed Penny, Australian Astronomical Observatory (Australia)
David R. Orr, Australian Astronomical Observatory (Australia)
Katharine J. Schlesinger, The Australian National Univ. (Australia)
Sanjib Sharma, The Univ. of Sydney (Australia)
Keith Shortridge, Australian Astronomical Observatory (Australia)
Jeffrey Simpson, Australian Astronomical Observatory (Australia)
Macquarie Univ. (Australia)
Scott Smedley, Australian Astronomical Observatory (Australia)
Greg Smith, Australian Astronomical Observatory (Australia)
Darren Stafford, Australian Astronomical Observatory (Australia)
Nicholas F. Staszak, Australian Astronomical Observatory (Australia)
Minh V. Vuong, Australian Astronomical Observatory (Australia)
Lewis G. Waller, Australian Astronomical Observatory (Australia)
Elizabeth Wylie de Boer, The Australian National Univ. (Australia)
Pascal Xavier, Australian Astronomical Observatory (Australia)
Jessica R. Zheng, Australian Astronomical Observatory (Australia)
Ross Zhelem, Australian Astronomical Observatory (Australia)
Daniel F. Zucker, Macquarie Univ. (Australia)
Tomaz Zwitter, Univ. of Ljubljana (Slovenia)


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