Back to Search Start Over

The Software Package for Astronomical Reductions with KMOS: SPARK

Authors :
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
Publication Year :
2013

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.<br />Comment: accepted for publication in A&A

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1308.6679
Document Type :
Working Paper
Full Text :
https://doi.org/10.1051/0004-6361/201322282