The GALAH Survey: Observational Overview

We present an overview of the observational operations and strategy for the Galactic Archaeology with HERMES (GALAH) survey, a major project underway at the Anglo-Australian Telescope. GALAH is using the HERMES spectrograph with the 2dF fibre positioner at AAT to acquire high-resolution spectra in four carefully selected wavelength regions. Our ultimate goal is to observe 1.15 million stars in the Southern sky for a comprehensive study of the history of star formation, chemical enrichment, dynamical evolution and minor mergers in the Milky Way disk. We de- scribe our standard observational operations, backup and ancillary programs, survey data rate and HERMES instrument performance, and demonstrate the diversity and quality of GALAH survey data.

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