TY - JOUR
T1 - First light results from the High Efficiency and Resolution Multi-Element Spectrograph at the Anglo-Australian Telescope
AU - Sheinis, Andrew
AU - Anguiano, Borja
AU - Asplund, Martin
AU - Bacigalupo, Carlos
AU - Barden, S.
AU - Birchall, Michael
AU - Bland-Hawthorn, Joss
AU - Brzeski, J.
AU - Cannon, Russell
AU - Carollo, Daniela
AU - Case, S.
AU - Casey, A.
AU - Churilov, V.
AU - Warrick, C.
AU - Dean, R.
AU - De Silva, G.
AU - D'Orazi, V.
AU - Duong, Ly
AU - Farrell, T.
AU - Fiegert, Kristin
PY - 2015/7/1
Y1 - 2015/7/1
N2 - The High Efficiency and Resolution Multi Element Spectrograph, HERMES, is a facility-class opticalspectrograph for the Anglo-Australian Telescope (AAT). It is designed primarily for Galactic Archaeology, the firstmajor attempt to create a detailed understanding of galaxy formation and evolution by studying the history of ourown galaxy, the Milky Way. The goal of the GALAH survey is to reconstruct the mass assembly history of theMilky Way through a detailed chemical abundance study of one million stars. The spectrograph is based atthe AAT and is fed by the existing 2dF robotic fiber positioning system. The spectrograph uses volumephase holographic gratings to achieve a spectral resolving power of 28,000 in standard mode and also providesa high-resolution mode ranging between 40,000 and 50,000 using a slit mask. The GALAH survey requiresan SNR greater than 100 for a star brightness of V = 14 in an exposure time of one hour. The total spectralcoverage of the four channels is about 100 nm between 370 and 1000 nm for up to 392 simultaneous targetswithin the 2-degree field of view. HERMES has been commissioned over three runs, during bright time inOctober, November, and December 2013, in parallel with the beginning of the GALAH pilot survey, which startedin November 2013. We present the first-light results from the commissioning run and the beginning of the GALAHsurvey, including performance results such as throughput and resolution, as well as instrument reliability.
AB - The High Efficiency and Resolution Multi Element Spectrograph, HERMES, is a facility-class opticalspectrograph for the Anglo-Australian Telescope (AAT). It is designed primarily for Galactic Archaeology, the firstmajor attempt to create a detailed understanding of galaxy formation and evolution by studying the history of ourown galaxy, the Milky Way. The goal of the GALAH survey is to reconstruct the mass assembly history of theMilky Way through a detailed chemical abundance study of one million stars. The spectrograph is based atthe AAT and is fed by the existing 2dF robotic fiber positioning system. The spectrograph uses volumephase holographic gratings to achieve a spectral resolving power of 28,000 in standard mode and also providesa high-resolution mode ranging between 40,000 and 50,000 using a slit mask. The GALAH survey requiresan SNR greater than 100 for a star brightness of V = 14 in an exposure time of one hour. The total spectralcoverage of the four channels is about 100 nm between 370 and 1000 nm for up to 392 simultaneous targetswithin the 2-degree field of view. HERMES has been commissioned over three runs, during bright time inOctober, November, and December 2013, in parallel with the beginning of the GALAH pilot survey, which startedin November 2013. We present the first-light results from the commissioning run and the beginning of the GALAHsurvey, including performance results such as throughput and resolution, as well as instrument reliability.
U2 - 10.1117/1.JATIS.1.3.035002
DO - 10.1117/1.JATIS.1.3.035002
M3 - Article
SN - 2329-4124
VL - 1
JO - Journal of Astronomical Telescopes, Instruments, and Systems
JF - Journal of Astronomical Telescopes, Instruments, and Systems
IS - 3
M1 - 035002
ER -