Kepler Target Pixel Files

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

In early 2011, the Kepler Mission will make available the pixel data for all observed targets, in addition to the aperture photometry light curves currently provided at the Multi-mission Archive at STScI (MAST). These target pixel files will contain images of the calibrated flux, the subtracted background, and the removed cosmic rays for the target at each cadence. Certain targets, such as highly variable stars, non-stellar targets, or saturated targets, require an analysis beyond fixed, optimal aperture photometry in order to retrieve all the information from the data. For a few cases we demonstrate the utility of the target pixel files in understanding the quality of the data and in performing specialized aperture photometry. Kepler was selected as the 10th mission of the Discovery Program. Funding for this mission is provided by NASA, Science Mission Directorate.

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