Software Applications for Oversampling of Transit Candidates
Résumé
In the Exo-field, the standard sampling of 12000 light-curves is 8.5 minutes but a finite number of them (1000 at maximum for a given field of view) can be oversampled to 32 seconds. This possibility was planned to enhance the scientific impact of the mission with the aim to get additional information on the shape and timing of the planetary transits. The targets to be oversampled are selected from a ground-based analysis of uncompletely corrected (preliminary) N1 data and sorted in a list that can be changed during the data acquisition. At the beginning of a run the 1000 oversampling possibilities are occupied either by stars known to host a planet (from ground based observations) or by reference stars appropriately chosen within the HerstzsprungRussel (HR) diagram. We present the software used for early detection in raw light-curves and the way results are stored and sorted to build up the oversampling list that is loaded on board the satellite. This list can be changed once a week during the operations while new sets of data are acquired. The whole software and data management developed to decide which target stars merit or not oversampling will be called \rdquoExowarning pipeline\rdquo.