The Software Package for Astronomical Reductions with KMOS: SPARK
| Autor: | Davies, Richard, Berbel, Alex Agudo, Wiezorrek, Erich, Cirasuolo, Michele, Schreiber, Natascha M. Foerster, Jung, Yves, Muschielok, Bernard, Ott, Thomas, Ramsay, Suzanne, Schlichter, Joerg, Sharples, Ray, Wegner, Michael |
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| Rok vydání: | 2013 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1051/0004-6361/201322282 |
| Popis: | 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. Comment: accepted for publication in A&A |
| Databáze: | arXiv |
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