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Optimal Extraction of Fibre Optic Spectroscopy
R.
Sharp A B,
M. N.
Birchall A
A
Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia
B
Corresponding author. Email: rgs@aao.gov.au
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Publications of the Astronomical Society of Australia 27(1) 91–103 http://dx.doi.org/10.1071/AS08001
Submitted: 17 January 2008
Accepted: 3 December 2009
Published online: 10 March 2010
Abstract
We report an optimal extraction methodology, for the reduction of multi-object fibre spectroscopy data, operating in the regime of tightly packed (and hence significantly overlapping) fibre profiles. The routine minimises crosstalk between adjacent fibres and statistically weights the extraction to reduce noise. As an example of the process we use simulations of the numerous modes of operation of the AAOmega fibre spectrograph and observational data from the SPIRAL Integral Field Unit at the Anglo-Australian Telescope.
Keywords:
instrumentation: spectrograph — methods: data analysis
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