Abstract
The last 15 years have seen a surge of new multi-chip optical and near-IR
imagers. While some of them are accompanied by specific reduction pipelines,
user-friendly and generic reduction tools are uncommon. In this paper I
introduce the numerous advantages of THELI, an easy-to-use, end-to-end pipeline
for the reduction of any optical, near-IR and mid-IR imaging data. Combining a
multitude of processing algorithms and third party software, THELI provides
researchers with a single, homogeneous tool. A steep learning curve ensures
quick success for new and more experienced observers alike. All tasks are
largely automatized, while at the same time a high level of flexibility and
alternative reduction schemes ensure that widely different scientific
requirements can be met. Over 90 optical and infrared instruments at
observatories world-wide are pre-configured, while more can be added by the
user. The online Appendix contains three walk-through examples using public
data (optical, near-IR and mid-IR). Additional extensive online documentation
is available for training and troubleshooting.
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