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arXiv · 1308.6679

The Software Package for Astronomical Reductions with KMOS: SPARK

Richard Davies·Alex Agudo Berbel·Erich Wiezorrek·Michele Cirasuolo·Natascha M. Foerster Schreiber·Yves Jung·Bernard Muschielok·Thomas Ott·Suzanne Ramsay·Joerg Schlichter·Ray Sharples·Michael Wegner
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Abstract

KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable cryogenic pick-off arms. Inevitably, data processing is a complex task that requires careful calibration and quality control. In this paper we describe all the steps involved in producing science-quality data products from the raw observations. In particular, we focus on the following issues: (i) the calibration scheme which produces maps of the spatial and spectral locations of all illuminated pixels on the detectors; (ii) our concept of minimising the number of interpolations, to the limiting case of a single reconstruction that simultaneously uses raw data from multiple exposures; (iii) a comparison of the various interpolation methods implemented, and an assessment of the performance of true 3D interpolation schemes; (iv) the way in which instrumental flexure is measured and compensated. We finish by presenting some examples of data processed using the pipeline.

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Richard Davies, Alex Agudo Berbel, Erich Wiezorrek, Michele Cirasuolo, Natascha M. Foerster Schreiber, Yves Jung, Bernard Muschielok, Thomas Ott, Suzanne Ramsay, Joerg Schlichter, Ray Sharples, Michael Wegner. 2013-08-30. The Software Package for Astronomical Reductions with KMOS: SPARK. https://doi.org/10.1051/0004-6361%2F201322282

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