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The GALAH Survey: Relative throughputs of the 2dF fibre positioner and the HERMES spectrograph from stellar targets

Simpson, Jeffrey D.; De Silva, G. M.; Bland-Hawthorn, J.; Freeman, K. C.; Martell, S. L.; Schlesinger, Katharine J.; Sharma, Sanjib; Zucker, D. B.; Zwitter, T.; Kos, J.; Anguiano, Borja; Nataf, David M.; Reid, Warren; Wittenmyer, Robert A.

Description

We present an analysis of the relative throughputs of the 3.9-metre Anglo-Australian Telescope's 2dF/HERMES system, based upon spectra acquired during the first two years of the GALAH survey. Averaged spectral fluxes of stars were compared to their photometry to determine the relative throughputs of fibres for a range of fibre position and atmospheric conditions. We find that overall the throughputs of the 771 usable fibres have been stable over the first two years of its operation. About...[Show more]

CollectionsANU Research Publications
Date published: 2016-03-30
Type: Journal article
URI: http://hdl.handle.net/1885/111561
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stw746

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