KMOS Data Flow: Reconstructing Data Cubes in One Step

Details KMOS Data Flow: Reconstructing Data Cubes in One Step KMOS Data Flow: Reconstructing Data Cubes in One Step

2010-05-26

arxiv.org/abs/1005.4748v1

Astronomy and Astrophysics

Astrophysics

Instrumentation and Methods for Astrophysics

Contribution to "Ground-based and Airborne Instrumentation for Astronomy III', SPIE 7735-254 (June 2010). High resolution vers

Scientific paper

KMOS is a multi-object near-infrared integral field spectrometer with 24 deployable pick-off arms. Data processing is inevitably complex. We discuss specific issues and requirements that must be addressed in the data reduction pipeline, the calibration, the raw and processed data formats, and the simulated data. We discuss the pipeline architecture. We focus on its modular style and show how these modules can be used to build a classical pipeline, as well as a more advanced pipeline that can account for both spectral and spatial flexure as well as variations in the OH background. A novel aspect of the pipeline is that the raw data can be reconstructed into a cube in a single step. We discuss the advantages of this and outline the way in which we have implemented it. We finish by describing how the QFitsView tool can now be used to visualise KMOS data.

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