he Gemini High-Resolution Optical SpecTrograph (GHOST) is a fibre-fed echelle spectrograph recently commissioned at Gemini-South. It has a wide variety of observing modes tuned for a range of science cases, which contribute to a number of unique data reduction challenges. In this paper, we describe the state of the GHOST data reduction pipeline and application during the GHOST commissioning phase
The data reduction software for the Gemini High Resolution Optical SpecTrograph (GHOST) presents a number of unusual challenges. Star light from one or two objects and simultaneous sky is collected in integral field units rather than a slit or well-separated fibers. When used with binning, individual fibers are not resolved, and the optimal pixel weighting is derived from a simultaneous slit viewing camera. We describe the data reduction approach taken, including testing using an optical physics-based data simulator, and an object-oriented and modular approach to spectral extraction that fits within the Gemini recipe system, DRAGONS, using AstroConda.
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