Journal article
The GALAH survey: observational overview and Gaia DR1 companion
Monthly notices of the Royal Astronomical Society, Vol.465(3), pp.3203-3219
03/01/2017
DOI: 10.1093/mnras/stw2835
Abstract
The Galactic Archaeology with HERMES (GALAH) survey is amassive observational project to trace the MilkyWay's history of star formation, chemical enrichment, stellar migration and minor mergers. Using high-resolution (R similar or equal to 28 000) spectra, taken with the High Efficiency and Resolution Multi- Element Spectrograph (HERMES) instrument at the Anglo-Australian Telescope, GALAH will determine stellar parameters and abundances of up to 29 elements for up to one million stars. Selecting targets from a colour-unbiased catalogue built from 2MASS, APASS and UCAC4 data, we expect to observe dwarfs at 0.3-3 kpc and giants at 1-10 kpc. This enables a thorough local chemical inventory of the Galactic thin and thick discs, and also captures smaller samples of the bulge and halo. In this paper, we present the plan, process and progress as of early 2016 for GALAH survey observations. In our first two years of survey observing we have accumulated the largest high-quality spectroscopic data set at this resolution, over 200 000 stars. We also present the first public GALAH data catalogue: stellar parameters (T-eff, log(g), [ Fe/ H], [ alpha/ Fe]), radial velocity, distance modulus and reddening for 10 680 observations of 9860 Tycho-2 stars, 7894 of which are included in the first Gaia data release.
Details
- Title: Subtitle
- The GALAH survey: observational overview and Gaia DR1 companion
- Creators
- S. L. Martell - UNSW SydneyS. Sharma - The University of SydneyS. Buder - Max Planck Institute for AstronomyL. Duong - Australian National UniversityK. J. Schlesinger - Australian National UniversityJ. Simpson - Australian Astronomical ObservatoryK. Lind - Uppsala UniversityM. Ness - Max Planck Institute for AstronomyJ. P. Marshall - UNSW SydneyM. Asplund - Australian National UniversityJ. Bland-Hawthorn - The University of SydneyA. R. Casey - University of CambridgeG. De Silva - The University of SydneyK. C. Freeman - Australian National UniversityJ. Kos - The University of SydneyJ. Lin - Australian National UniversityD. B. Zucker - Macquarie UniversityT. Zwitter - University of LjubljanaB. Anguiano - Macquarie UniversityC. Bacigalupo - Macquarie UniversityD. Carollo - University of Notre DameL. Casagrande - Australian National UniversityG. S. Da Costa - Australian National UniversityJ. Horner - University of Southern QueenslandD. Huber - The University of SydneyE. A. Hyde - Australian Astronomical ObservatoryP. R. Kafle - The University of Western AustraliaG. F. Lewis - The University of SydneyD. Nataf - Australian National UniversityC. A. Navin - Macquarie UniversityD. Stello - The University of SydneyC. G. Tinney - UNSW SydneyF. G. Watson - Australian Astronomical ObservatoryR. Wittenmyer - UNSW Sydney
- Resource Type
- Journal article
- Publication Details
- Monthly notices of the Royal Astronomical Society, Vol.465(3), pp.3203-3219
- DOI
- 10.1093/mnras/stw2835
- ISSN
- 0035-8711
- eISSN
- 1365-2966
- Publisher
- Oxford Univ Press
- Number of pages
- 17
- Grant note
- Gaia Multilateral Agreement 2015-00415_3 / Swedish Research Council DE140100598; FT110100743 / Australian Research Council 2015-00415; GRANTS:17144642 / Swedish Research Council DE140100598; GRANTS:15529661; FT110100743; GRANTS:15532746 / Australian Research Council UNSW Vice-Chancellor's Research Fellowship Alexander von Humboldt Foundation GRANTS:17227397; 2015-00415 / Vinnova 1430152 / Direct For Mathematical & Physical Scien; Division Of Physics; National Science Foundation (NSF); NSF - Directorate for Mathematical & Physical Sciences (MPS) 320360 / European Union FP7 programme through ERG; European Union (EU); Marie Curie Actions
- Language
- English
- Date published
- 03/01/2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984701827902771
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